Electric Wiring and Repairs

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Wiring a Shed

Electrical Project: I am installing a sub panel in a garden shed. I bought a GE DEH41160 panel.

How to Wire Sub Panel for a Shed

Jason’s Home Wiring Project:

• Installing a sub panel in a garden shed.
• I bought a GE DEH41160.
• I just want to run 110 to it for some outlets and a light in the shed.
• The panels manual shows 3 wires running into the panel (hot,neut,ground) but the manual is black and white and they do not indicate which is which and there are no markings on the panel.
• I do not know what bus is what.

Single-phase, 3-wire, 125 Amp 240 VAC GE DEH41160 Panel

Wiring Configuration for a GE DEH41160 Sub Panel

Wiring a GE DEH41160 Panel for a Shed

This request came from Jason in Tacoma, Washington.

Dave’s Reply:

Thanks for your sharing your electrical wiring project Jason.

How to Wire a Sub Panel

• Application: How to Wire a Sub Panel.
• Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
• Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
• Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
• Electrical Safety: Identify the electrical power source to the Sub Panel, turn it OFF and Tag with a Note before working with the electrical wiring.
• Electrical Wiring Parts and Materials: Electrical parts and materials for the Sub Panel should be approved for the specific project and compliant with local and national electrical codes.
• Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Washington. A permit and inspections may also be required.

How to Wire a Sub Panel in a Shed

This electrical wiring project is about how to provide electrical power to a garden shed for a light and outlets.

Sub Panel How to Wire

Jason, from the information you have provided:

• In your question, you have described a sub panel which is a  Single-phase, 3-wire, 125 Amp 240 VAC panel – which far exceeds what is needed for a few basic 120 volt outlets and a light in a small garden shed.
• You have not provided information about what size or type wiring has been installed to the shed, or the power source that you plan to install.
• You may consider installing a GFCI outlet as the main connection point for the power source, then wiring to the additional outlet, and light switch, and then the light.
  

  A GFCI Outlet Provides Ground Fault Protection

The Following Resources may Assist You with this Request:
Wiring a Shed with Outlets and a Light
Wiring a Shed with Outlets and a Light. I put in 4 outlets and now wiring the light switch and the fixture.

Install an Electrical Sub Panel
Thinking about installing a Sub Panel? Here is what must be considered first, and you may find that you really do not need a sub panel at all.

More about How to Wire a Sub Panel

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Home Electrical Codes for Main Service Panels
Electrical Wiring Codes

Home Electrical Sub-Panels

Sub-Panel Electrical Wiring for the Home

Electrical sub-panel wiring considerations for the home complete with pictures. Careful planning for your Sub-Panel with immediate and future load considerations will help you understand the size your Sub-Panel. This information will help as you consider a Sub-Panel and its size.

Install Home Lighting

Planning and Installing Home Lighting

Home lighting articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

Wire Electric Outlets

Wiring Electrical Outlets for the Home

Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.

Wiring a Shed

Electrical Project: I am installing a sub panel in a garden shed. I bought a GE DEH41160 panel.

How to Wire Sub Panel for a Shed

Jason’s Home Wiring Project:

• Installing a sub panel in a garden shed.
• I bought a GE DEH41160.
• I just want to run 110 to it for some outlets and a light in the shed.
• The panels manual shows 3 wires running into the panel (hot,neut,ground) but the manual is black and white and they do not indicate which is which and there are no markings on the panel.
• I do not know what bus is what.

Single-phase, 3-wire, 125 Amp 240 VAC GE DEH41160 Panel

Wiring Configuration for a GE DEH41160 Sub Panel

Wiring a GE DEH41160 Panel for a Shed

This request came from Jason in Tacoma, Washington.

Dave’s Reply:

Thanks for your sharing your electrical wiring project Jason.

How to Wire a Sub Panel

• Application: How to Wire a Sub Panel.
• Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
• Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
• Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
• Electrical Safety: Identify the electrical power source to the Sub Panel, turn it OFF and Tag with a Note before working with the electrical wiring.
• Electrical Wiring Parts and Materials: Electrical parts and materials for the Sub Panel should be approved for the specific project and compliant with local and national electrical codes.
• Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Washington. A permit and inspections may also be required.

How to Wire a Sub Panel in a Shed

This electrical wiring project is about how to provide electrical power to a garden shed for a light and outlets.

Sub Panel How to Wire

Jason, from the information you have provided:

• In your question, you have described a sub panel which is a  Single-phase, 3-wire, 125 Amp 240 VAC panel – which far exceeds what is needed for a few basic 120 volt outlets and a light in a small garden shed.
• You have not provided information about what size or type wiring has been installed to the shed, or the power source that you plan to install.
• You may consider installing a GFCI outlet as the main connection point for the power source, then wiring to the additional outlet, and light switch, and then the light.
  

  A GFCI Outlet Provides Ground Fault Protection

The Following Resources may Assist You with this Request:
Wiring a Shed with Outlets and a Light
Wiring a Shed with Outlets and a Light. I put in 4 outlets and now wiring the light switch and the fixture.

Install an Electrical Sub Panel
Thinking about installing a Sub Panel? Here is what must be considered first, and you may find that you really do not need a sub panel at all.

More about How to Wire a Sub Panel

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Home Electrical Codes for Main Service Panels
Electrical Wiring Codes

Home Electrical Sub-Panels

Sub-Panel Electrical Wiring for the Home

Electrical sub-panel wiring considerations for the home complete with pictures. Careful planning for your Sub-Panel with immediate and future load considerations will help you understand the size your Sub-Panel. This information will help as you consider a Sub-Panel and its size.

Install Home Lighting

Planning and Installing Home Lighting

Home lighting articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

Wire Electric Outlets

Wiring Electrical Outlets for the Home

Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.

Wiring a Wall Outlet

Electrical Project: I am replacing a standard 15 amp duplex receptacle outlet. It has six wires attached, 3 black, 3 white.

Wire Wall Outlet with Multiple Wires

Wil’s Home Wiring Project:

• I am replacing a standard 15 amp duplex wall outlet, but it has six wires attached, 3 black, 3 white.
• Four wires use the little screws, and two are in the plug in sockets.
• Do I tie the extras together, or put a wire nut on each of them?

This request came from Wil in Midlothian, Virginia.

Dave’s Reply:

Thanks for your sharing your electrical wiring project Wil.

How to Wire a Wall Outlet

• Application: How to Wire a Wall Outlet.
  Skill Level: Intermediate to Advanced – Best performed by a Licensed
• Electrical Contractor, or Certified Electrician.
• Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
• Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
• Electrical Safety: Identify the electrical power source to the Wall Outlet, turn it OFF and Tag with a Note before working with the electrical wiring.
• Electrical Wiring Parts and Materials: Electrical parts and materials for the Wall Outlet should be approved for the specific project and compliant with local and national electrical codes.
• Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Virginia. A permit and inspections may also be required.

How to Wire a Outlet

This electrical wiring project is about How to Wire a Wall Outlet in the Hallway of a Home.

Wall Outlet Wiring Example

Wil, from the information you have provided:

• The existing wiring method is not the preferred method.
• Consider the following photo and wiring method as an example.

Example of Outlet Wiring when there are more than one cable from the electrical circuit

• An option that works well is to splice all of the wires together from each wire color group, and create a single lead wire from each group to be connected to the new outlet.
• This way the electrical load will be kept at the wire splice, and not pass through the outlet.
• This method will prevent burning out the outlet when a large electrical load is placed on the outlet circuit.

More about How to Wire a Wall Outlet

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Wire Electric Outlets

Wiring Electrical Outlets for the Home

Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.

Wiring a Wall Outlet

Electrical Project: I am replacing a standard 15 amp duplex receptacle outlet. It has six wires attached, 3 black, 3 white.

Wire Wall Outlet with Multiple Wires

Wil’s Home Wiring Project:

• I am replacing a standard 15 amp duplex wall outlet, but it has six wires attached, 3 black, 3 white.
• Four wires use the little screws, and two are in the plug in sockets.
• Do I tie the extras together, or put a wire nut on each of them?

This request came from Wil in Midlothian, Virginia.

Dave’s Reply:

Thanks for your sharing your electrical wiring project Wil.

How to Wire a Wall Outlet

• Application: How to Wire a Wall Outlet.
  Skill Level: Intermediate to Advanced – Best performed by a Licensed
• Electrical Contractor, or Certified Electrician.
• Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
• Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
• Electrical Safety: Identify the electrical power source to the Wall Outlet, turn it OFF and Tag with a Note before working with the electrical wiring.
• Electrical Wiring Parts and Materials: Electrical parts and materials for the Wall Outlet should be approved for the specific project and compliant with local and national electrical codes.
• Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Virginia. A permit and inspections may also be required.

How to Wire a Outlet

This electrical wiring project is about How to Wire a Wall Outlet in the Hallway of a Home.

Wall Outlet Wiring Example

Wil, from the information you have provided:

• The existing wiring method is not the preferred method.
• Consider the following photo and wiring method as an example.

Example of Outlet Wiring when there are more than one cable from the electrical circuit

• An option that works well is to splice all of the wires together from each wire color group, and create a single lead wire from each group to be connected to the new outlet.
• This way the electrical load will be kept at the wire splice, and not pass through the outlet.
• This method will prevent burning out the outlet when a large electrical load is placed on the outlet circuit.

More about How to Wire a Wall Outlet

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Wire Electric Outlets

Wiring Electrical Outlets for the Home

Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.

Wiring Light Fixtures and Switches
Electrical Problem: How do I fix a problem with a light I am trying to install?

• I have a problem with a light I am trying to install in my kitchen.
• The light was originally a fluorescent light but I replaced it with a regular 2 bulb ceiling mount light fixture.
• There are two cables in the ceiling, (black, white and ground wires in each) one is connected to the kitchen light switch and the second cable is coming from an outlet with a motion sensor outdoor light that is always switched on. Both were originally connected to the fluorescent light.
• I cannot get the light fixture, or the outside light working. I tried wiring all blacks (4 wires) all whites (4 wires) and all grounds (3 wires) together-(3 bundles) I have also tried the two black from the light wired to one black and the two white from the light to the other black with the two external white wires together and all three grounds together-(4 bundles).
• It seems like this is a complicated lighting schematic where both light fixtures are getting power from the same source and they need to be wired in parallel.

Not sure what to try next, any help would be greatly appreciated!

This electrical wiring project came from: Andy, a Student in New York.

Dave’s Reply:
Thanks for your electrical wiring question Andy.

Wire Light Switches and Occupancy Sensors

• Application: Troubleshooting and Testing Light Switch Wiring.
• Skill Level: Intermediate to Advanced. This electrical project is best performed by a licensed electrical contractor.
• Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
• Estimated Time: Depends on personal level experience, ability to work with hand tools and electrical troubleshooting skills.
• Precaution: Identify the circuit, turn it OFF and then Tag it with a Note before performing any wiring or inspections.

Wiring Connections for Light Fixtures and Switches

• Identify the Power Source for the Light Fixture
  • Using my voltage tester, I would carefully identify the power source, making sure that I test the hot to ground and the same hot to neutral.
  • This is done one cable at a time, and one wire at a time.
  • Once the power source is identified I would identify the power source cable with black electrical tape, and cap off the wires using orange or yellow wire nuts.

• Wiring  Light Switches
  • Next, the wiring to the switches will need to be identified starting by looking at the wiring on the switch so I can see which wires are actually connected to the switch.
  • Then using the ohms scale on my meter or my continuity tester I would test each remaining cable to identify the cable that goes to each switch.
  • I will notice that there are fewer cables left and where they are going is beginning to make since.

• Wiring a Switch for Two or More Light Fixtures
  • Because the power source is shared with the two light fixtures, then I understand that the white neutral wire of the power source cable will be connected to the neutral wires of each light fixture.

• Wiring from a Shared Power Source
  • The black wire of the power source will connect to one of the wires leading to the light switch, and the return wire from the light switch will connect to the kitchen light fixture.
  • Because the outside motion light is hot all the time, then it will connect to the black wire of the power source cable.

• Bonding the Ground Wire
  • All of the earth ground wires are connected together using a wire connector.
  • Additional ground wires are added to this group of ground wires to provide bonding all of the components of the circuit as follows:
    • Light fixtures
    • Light switches
    • Junction box
  • NOTE: Bond the earth ground to these components using Green Grounding Screws and or Bare Copper Wire or Green insulated wire.

More about Wiring Light Fixtures and Light Switches

Light Switch Wiring

Wiring a Light Switch – Diagram 1
Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo diagram 1.

Home lighting

Home Lighting Articles
Home Lighting Articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

How to Install Kitchen Electrical Wiring

Kitchen Electrical Wiring
Fully Explained Photos and Wiring Diagrams for Kitchen Electrical Wiring with Code Requirements for most new or remodel projects.

Wiring Light Fixtures and Switches
Electrical Problem: How do I fix a problem with a light I am trying to install?

• I have a problem with a light I am trying to install in my kitchen.
• The light was originally a fluorescent light but I replaced it with a regular 2 bulb ceiling mount light fixture.
• There are two cables in the ceiling, (black, white and ground wires in each) one is connected to the kitchen light switch and the second cable is coming from an outlet with a motion sensor outdoor light that is always switched on. Both were originally connected to the fluorescent light.
• I cannot get the light fixture, or the outside light working. I tried wiring all blacks (4 wires) all whites (4 wires) and all grounds (3 wires) together-(3 bundles) I have also tried the two black from the light wired to one black and the two white from the light to the other black with the two external white wires together and all three grounds together-(4 bundles).
• It seems like this is a complicated lighting schematic where both light fixtures are getting power from the same source and they need to be wired in parallel.

Not sure what to try next, any help would be greatly appreciated!

This electrical wiring project came from: Andy, a Student in New York.

Dave’s Reply:
Thanks for your electrical wiring question Andy.

Wire Light Switches and Occupancy Sensors

• Application: Troubleshooting and Testing Light Switch Wiring.
• Skill Level: Intermediate to Advanced. This electrical project is best performed by a licensed electrical contractor.
• Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
• Estimated Time: Depends on personal level experience, ability to work with hand tools and electrical troubleshooting skills.
• Precaution: Identify the circuit, turn it OFF and then Tag it with a Note before performing any wiring or inspections.

Wiring Connections for Light Fixtures and Switches

• Identify the Power Source for the Light Fixture
  • Using my voltage tester, I would carefully identify the power source, making sure that I test the hot to ground and the same hot to neutral.
  • This is done one cable at a time, and one wire at a time.
  • Once the power source is identified I would identify the power source cable with black electrical tape, and cap off the wires using orange or yellow wire nuts.

• Wiring  Light Switches
  • Next, the wiring to the switches will need to be identified starting by looking at the wiring on the switch so I can see which wires are actually connected to the switch.
  • Then using the ohms scale on my meter or my continuity tester I would test each remaining cable to identify the cable that goes to each switch.
  • I will notice that there are fewer cables left and where they are going is beginning to make since.

• Wiring a Switch for Two or More Light Fixtures
  • Because the power source is shared with the two light fixtures, then I understand that the white neutral wire of the power source cable will be connected to the neutral wires of each light fixture.

• Wiring from a Shared Power Source
  • The black wire of the power source will connect to one of the wires leading to the light switch, and the return wire from the light switch will connect to the kitchen light fixture.
  • Because the outside motion light is hot all the time, then it will connect to the black wire of the power source cable.

• Bonding the Ground Wire
  • All of the earth ground wires are connected together using a wire connector.
  • Additional ground wires are added to this group of ground wires to provide bonding all of the components of the circuit as follows:
    • Light fixtures
    • Light switches
    • Junction box
  • NOTE: Bond the earth ground to these components using Green Grounding Screws and or Bare Copper Wire or Green insulated wire.

More about Wiring Light Fixtures and Light Switches

Light Switch Wiring

Wiring a Light Switch – Diagram 1
Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo diagram 1.

Home lighting

Home Lighting Articles
Home Lighting Articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

How to Install Kitchen Electrical Wiring

Kitchen Electrical Wiring
Fully Explained Photos and Wiring Diagrams for Kitchen Electrical Wiring with Code Requirements for most new or remodel projects.

Guide to Wiring Connections for a Bath Exhaust Fan
Electrical Project: How do I wire the wall switch wires for my bathroom exhaust fan wires?

• I am installing an exhaust fan in my bathroom.
• One black and white wire is coming from panel and other one coming from the on and off switch.
• Please guide me how to connect these wire to the fan.
• The fan is simple with black and white wire.

This electrical wiring question came from: Ram, a Homeowner from Toronto, Canada.

Additional Comments: Very informative.

Dave’s Reply:
Thanks for your electrical wiring question Ram.

How to Connect the Wires of a Bath Exhaust Fan

• Application: Wiring a Bath Exhaust Fan.
• Skill Level: Beginner to Intermediate – Best performed by a Licensed Electrician.
• Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
• Estimated Time: Depends on personal level experience and ability to work with tools.
• Precaution: Identify the bathroom light circuit, turn it OFF and  Tag it with a Note before working with the wiring.

Wiring Connections for an Exhaust Fan

• Overview of Wiring
  • Wiring switched power for a bathroom exhaust fan is basically the same as wiring a light switch.
  • This example describes the wiring connections where the power source and the exhaust fan wires are located in the wall switch box.

• Identify the Power Source and Exhaust Fan Wires
  • Identify the cable which supplies the wires from the circuit power source. This is typically a 2-wire cable with a black and white wire and a ground wire.
  • A careful test using a non-contact tester of the black wire will indicate the power source.

• Splicing the White Neutral Wires
  • Neural wires are not attached to the switch, but are spliced together.Sometime white wires are attached to a switch, however that is because the white wire is being used as a switched leg of the power wiring.
  • The white neutral wire of the power source and the exhaust fan are spliced together using a yellow or red wire connector.

• Wiring the Switch
  • A single pole switch is not polarized, so it does not matter which of the black wires are placed on the two brass screws of the switch.
  • Strip off the insulating about an inch from the end of each of the black wires of the power source and the exhaust fan.
  • Attach each of the black wires to the brass terminal screws on the side of the switch so the loop of the wire will be facing in a clockwise orientation with the wire loop directly under the head of the screw.
  • Using a flat blade screwdriver tighten each screw down firmly to create a solid connection.

• Grounding the Components
  • The circuit ground wires are the most important wires of the circuit because they protect the circuit components in the case of circuit overload or short circuit conditions.
  • Ground wires are spliced together and bonded to the switch and to metallic switch boxes, as well as the device, which in this case is the exhaust fan.
  • The bonding process of the ground wire of the circuit involves attaching a lead of the ground wires to a green grounding screw on the frame of the switch, a green grounding screw of the switch box and the exhaust fan enclosure. Some exhaust fans will supply a pre-wired bonded green ground wire which is used for the connection with the ground wire.

• Wiring the Exhaust Fan
  • A typical exhaust fan will have a set of wires located inside the junction box which is located a part of the exhaust fan enclosure.
  • The entry hole for the cable to be connected to the exhaust fan must be fitted with a cable connector which will insulated and protect the cable. This can be either a 2-screw connector, or a plastic insulated cable connector.
  • Strip off the insulating about an inch from the end of each of the black wire of the cable at the exhaust fan.
  • Create a splice for each pair of wires, color to color, and complete each splice using a yellow or red wire connector which is fastened firmly to create a secure splice.

More about Wiring a Bathroom Exhaust Fan

How to Install and Wire a Bathroom Fan

Wiring a Bath Exhaust Fan

• Bathroom Exhaust Fan
  • Answers to all of your questions about installing a bath exhaust fan and your bathroom exhaust fan replacement project.

• Bathroom Electrical Wiring
  • Fully Explained Photos and Wiring Diagrams for Bathroom Electrical Wiring with Code Requirements for most new or remodel projects.

Light Switch Wiring

• Wiring a Light Switch – Diagram 1
  • Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo diagram 1.

Electrical wire

• Electrical Wire for the Home
  • Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Guide to Wiring Connections for a Bath Exhaust Fan
Electrical Project: How do I wire the wall switch wires for my bathroom exhaust fan wires?

• I am installing an exhaust fan in my bathroom.
• One black and white wire is coming from panel and other one coming from the on and off switch.
• Please guide me how to connect these wire to the fan.
• The fan is simple with black and white wire.

This electrical wiring question came from: Ram, a Homeowner from Toronto, Canada.

Additional Comments: Very informative.

Dave’s Reply:
Thanks for your electrical wiring question Ram.

How to Connect the Wires of a Bath Exhaust Fan

• Application: Wiring a Bath Exhaust Fan.
• Skill Level: Beginner to Intermediate – Best performed by a Licensed Electrician.
• Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
• Estimated Time: Depends on personal level experience and ability to work with tools.
• Precaution: Identify the bathroom light circuit, turn it OFF and  Tag it with a Note before working with the wiring.

Wiring Connections for an Exhaust Fan

• Overview of Wiring
  • Wiring switched power for a bathroom exhaust fan is basically the same as wiring a light switch.
  • This example describes the wiring connections where the power source and the exhaust fan wires are located in the wall switch box.

• Identify the Power Source and Exhaust Fan Wires
  • Identify the cable which supplies the wires from the circuit power source. This is typically a 2-wire cable with a black and white wire and a ground wire.
  • A careful test using a non-contact tester of the black wire will indicate the power source.

• Splicing the White Neutral Wires
  • Neural wires are not attached to the switch, but are spliced together.Sometime white wires are attached to a switch, however that is because the white wire is being used as a switched leg of the power wiring.
  • The white neutral wire of the power source and the exhaust fan are spliced together using a yellow or red wire connector.

• Wiring the Switch
  • A single pole switch is not polarized, so it does not matter which of the black wires are placed on the two brass screws of the switch.
  • Strip off the insulating about an inch from the end of each of the black wires of the power source and the exhaust fan.
  • Attach each of the black wires to the brass terminal screws on the side of the switch so the loop of the wire will be facing in a clockwise orientation with the wire loop directly under the head of the screw.
  • Using a flat blade screwdriver tighten each screw down firmly to create a solid connection.

• Grounding the Components
  • The circuit ground wires are the most important wires of the circuit because they protect the circuit components in the case of circuit overload or short circuit conditions.
  • Ground wires are spliced together and bonded to the switch and to metallic switch boxes, as well as the device, which in this case is the exhaust fan.
  • The bonding process of the ground wire of the circuit involves attaching a lead of the ground wires to a green grounding screw on the frame of the switch, a green grounding screw of the switch box and the exhaust fan enclosure. Some exhaust fans will supply a pre-wired bonded green ground wire which is used for the connection with the ground wire.

• Wiring the Exhaust Fan
  • A typical exhaust fan will have a set of wires located inside the junction box which is located a part of the exhaust fan enclosure.
  • The entry hole for the cable to be connected to the exhaust fan must be fitted with a cable connector which will insulated and protect the cable. This can be either a 2-screw connector, or a plastic insulated cable connector.
  • Strip off the insulating about an inch from the end of each of the black wire of the cable at the exhaust fan.
  • Create a splice for each pair of wires, color to color, and complete each splice using a yellow or red wire connector which is fastened firmly to create a secure splice.

More about Wiring a Bathroom Exhaust Fan

How to Install and Wire a Bathroom Fan

Wiring a Bath Exhaust Fan

• Bathroom Exhaust Fan
  • Answers to all of your questions about installing a bath exhaust fan and your bathroom exhaust fan replacement project.

• Bathroom Electrical Wiring
  • Fully Explained Photos and Wiring Diagrams for Bathroom Electrical Wiring with Code Requirements for most new or remodel projects.

Light Switch Wiring

• Wiring a Light Switch – Diagram 1
  • Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo diagram 1.

Electrical wire

• Electrical Wire for the Home
  • Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Dim Light Problems
Electrical Problem: What would causes my lights to be dim?

How to Identify the Cause of Dim Lights

• Application: Identify and Troubleshoot the Cause of Dim Lights.
• Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
• Tools Required: Basic Electricians Pouch of Hand Tools, electric voltage tester and clamp on amperage meter.
• Estimated Time: Depends on personal level experience, ability to work with tools and troubleshoot electrical circuit wiring.
• Precaution: Identify the affected panel circuit, turn it OFF and Tag it with a Note before inspecting or working with the wiring.
• Notice: Installing additional circuit wiring should be done with a permit and be inspected.
• Important: severe cases of Dim Lights should be reported to your local electrical service provider.
• Electrical Questions and Answers about Dim Light Problems
  • Dim Lights and Older Home Electrical Wiring
  • Dim Lights when an Air Conditioner Starts Up

Dim Lights and Older Home Electrical Wiring

Why do we have Dim Lights after updating the Electrical Wiring in an Older Home?

• My friends house is old, the lights keeps dimming and then getting bright. It has doing this since he bought it two years ago.
• We replaced the old electrical box with a new 100 amp breaker box in hopes that this would correct the problem. We DID NOT replace the service lean-in wire. Should we re-place this? Also, I have noticed that every time his old chest type deep freezer kicks on, the lights does the same thing.
• Should we replace the start-up cap. on the motor? and the 3rd item, the ground wire that is the best is coming from the electric company by means of the service lean-in wire.
• The old ground wire is connected to a metal gas line coming in from the road, should we drive down a 10 foot cooper rod and replace that ground wire? would this stop our problems?

This electrical wiring question came from: James from Kalamazoo, Michigan.

Updating Older Home Electrical Panel, Adding New Circuits and Electrical Wiring

1. Replacing the main electrical panel is a good start, however the internal circuits and wiring will need to be addressed.
2. Additional circuits may be required to bring old home electrical wiring up to current electrical codes.
3. Dim lights may be a sign that the electrical circuit is being shared by another device or equipment that is using most of the electrical circuit power, therefore installing additional circuits for specific equipment will be very helpful.

Dim Lights when an Air Conditioner Starts Up
Why do my lights to dim when my neighbor’s central air conditioner starts?

• My lights dim when my neighbor’s central air conditioning system turns on.
• What would cause this, and what can I do about it?

This electrical wiring question came from Liesa in Warren, Michigan.

Dim Lights when an Air Conditioner Starts Up

Electrical Power Usage and the Electrical Service Provider

• The peak demand times of the day when air conditioner units are running there may be a noticeable dimming of the lights when the air conditioner unit starts.
• Momentary dimming when the ac unit starts up is normal, however regular dimming or frequent levels of low light output may be the sign of other components of the electrical system that need to be examined by a professional.
• Notify the electrical service provider in your area and describe the dim light problem. The utility company may provide an inspection of the electrical service as well as the size of the transformer which provides the power for your home.

More about Electrical Wiring and Repairs for a Dim Light Problem

Wiring Electrical Codes

Electrical Circuit Breakers

Home Electrical Circuit Breakers

A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Home Electrical Junction Boxes

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

Electrical Grounding

Electrical Grounding Methods and Requirements

Listing of electrical codes for grounding with examples of electrical grounding codes for home electrical wiring.

Dim Light Problems
Electrical Problem: What would causes my lights to be dim?

How to Identify the Cause of Dim Lights

• Application: Identify and Troubleshoot the Cause of Dim Lights.
• Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
• Tools Required: Basic Electricians Pouch of Hand Tools, electric voltage tester and clamp on amperage meter.
• Estimated Time: Depends on personal level experience, ability to work with tools and troubleshoot electrical circuit wiring.
• Precaution: Identify the affected panel circuit, turn it OFF and Tag it with a Note before inspecting or working with the wiring.
• Notice: Installing additional circuit wiring should be done with a permit and be inspected.
• Important: severe cases of Dim Lights should be reported to your local electrical service provider.
• Electrical Questions and Answers about Dim Light Problems
  • Dim Lights and Older Home Electrical Wiring
  • Dim Lights when an Air Conditioner Starts Up

Dim Lights and Older Home Electrical Wiring

Why do we have Dim Lights after updating the Electrical Wiring in an Older Home?

• My friends house is old, the lights keeps dimming and then getting bright. It has doing this since he bought it two years ago.
• We replaced the old electrical box with a new 100 amp breaker box in hopes that this would correct the problem. We DID NOT replace the service lean-in wire. Should we re-place this? Also, I have noticed that every time his old chest type deep freezer kicks on, the lights does the same thing.
• Should we replace the start-up cap. on the motor? and the 3rd item, the ground wire that is the best is coming from the electric company by means of the service lean-in wire.
• The old ground wire is connected to a metal gas line coming in from the road, should we drive down a 10 foot cooper rod and replace that ground wire? would this stop our problems?

This electrical wiring question came from: James from Kalamazoo, Michigan.

Updating Older Home Electrical Panel, Adding New Circuits and Electrical Wiring

1. Replacing the main electrical panel is a good start, however the internal circuits and wiring will need to be addressed.
2. Additional circuits may be required to bring old home electrical wiring up to current electrical codes.
3. Dim lights may be a sign that the electrical circuit is being shared by another device or equipment that is using most of the electrical circuit power, therefore installing additional circuits for specific equipment will be very helpful.

Dim Lights when an Air Conditioner Starts Up
Why do my lights to dim when my neighbor’s central air conditioner starts?

• My lights dim when my neighbor’s central air conditioning system turns on.
• What would cause this, and what can I do about it?

This electrical wiring question came from Liesa in Warren, Michigan.

Dim Lights when an Air Conditioner Starts Up

Electrical Power Usage and the Electrical Service Provider

• The peak demand times of the day when air conditioner units are running there may be a noticeable dimming of the lights when the air conditioner unit starts.
• Momentary dimming when the ac unit starts up is normal, however regular dimming or frequent levels of low light output may be the sign of other components of the electrical system that need to be examined by a professional.
• Notify the electrical service provider in your area and describe the dim light problem. The utility company may provide an inspection of the electrical service as well as the size of the transformer which provides the power for your home.

More about Electrical Wiring and Repairs for a Dim Light Problem

Wiring Electrical Codes

Electrical Circuit Breakers

Home Electrical Circuit Breakers

A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Home Electrical Junction Boxes

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

Electrical Grounding

Electrical Grounding Methods and Requirements

Listing of electrical codes for grounding with examples of electrical grounding codes for home electrical wiring.

Electrical Service Panel
Electrical Project: What size should the Main Panel Electric Service be for all the Electrical Circuits?

• Do I need a 100amp 150amp or 200amp electric service for our electrical circuits?
• I had a 24′ x 36′ building erected and I would like to install an electrical service panel. The back part is residence and the size is 24′ x 16′
• The only 220v item will be the stove.
• It will have baseboard heating and the usual outlets. no washer, no dryer, but it will have a hot water tank.
• Do I need a 200 amp service, or will 150, or even 100 amp service be adequate?

This electrical wiring question came from: Mick, a Homeowner from Yuma, AZ, Arizona.

Additional Question: I’m working on a remodel project where we will be adding a laundry room with a sink and the following circuits:

• Tank less water heater rated for 240 volt 40 amp 9600 watt.
• Clothes dryer rated 240 volt 30 amp 7200 watts.
• Lighting 120 volt 20 amp.

Is the sub-panel power adequate at 60 amp with 6 wire?

This electrical wiring question came from Mike, in phoenix, Arizona.

Dave’s Reply:
Thanks for your electrical wiring question Mick and Mike.

Electrical Panel Size Considerations

• Application: Main Electric Service Panel.
• Skill Level: Advanced – Best Installed by a Licensed Electrical Contractor – Not Recommended for Homeowners.
• Tools Required: Electricians pouch of hand tools and the various power tools necessary for the specific method of electrical service installation.
• Estimated Time: Depends on the type of panel, the location, and available access to the project area.
• Precaution: This is an extensive project. Working in an electric panel has possible arc flash hazards and should be performed by a Licensed Electrical Contractor.
• Notice: Installing an Electrical Service Panel should be done according to local and national electrical codes with a permit and be inspected.

Key Factors for Electrical Panel Size

• Type of Building and Size
  • There are several factors that must be considered when sizing an electrical panel, and some building departments may have size requirements as well, depending on the type of building and what it will be used for.
• Equipment Voltage and Amperage
  • All of the electrical loads must be determined stating the voltage and the amperage or watts.
• Calculations Base on Occupied Space
  • Some of the calculations may be made according to the size of the dwelling and actual occupied or living space.
  • Areas such as a garage are typically not a part of this calculation, however circuits for equipment in the garage will be a factor, such as a water heater, whole house vacuum system etc.
• Project Layout Design
  • Most all of these items are identified when a design engineer or architect creates the layout for the project and inserting all the devices as required by the local building codes.
• Building Department Approval
  • Submitting the plan or layout to the local building department is essential.
  • This is the all important planning step of the project that must be taken, otherwise the project will most likely not contain some of the essential circuits and equipment.
  • For Example: Required devices which are required for a home include:
    • Smoke Detectors.
    • GFCI Ground Fault Circuit Interrupters for protected outlets and devices.
    • AFCI – Arc Fault Circuit Interrupter.
    • Appliance circuits in specific locations.

When all of these required items have been identified then the panel size can be properly determined. It would be a shame to invest your resources to construct this building and then fall short where it really matters.

• Sizing a Sub Panel for a Laundry Room
  • Question #2 from Mike provides enough information to show that a 60 amp panel will easily become over loaded, especially when the dryer and tank less water heater turn on at the same time.
  • Keep in mind that ideally an electric panel should be loaded no moire than 80% of the load capacity.

More about Electrical Service Panel Projects

Electrical Codes for Services
Wiring Electrical Codes

Basic House Wiring Circuits

• House Wiring Circuits and Circuit Breakers

• This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.

Circuit Wiring

• Electrical Circuit Wiring

• This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.

Electrical Panel Circuit Listing

Electrical Circuit Breakers

• Home Electrical Circuit Breakers

• A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.

Electrical Service Panel
Electrical Project: What size should the Main Panel Electric Service be for all the Electrical Circuits?

• Do I need a 100amp 150amp or 200amp electric service for our electrical circuits?
• I had a 24′ x 36′ building erected and I would like to install an electrical service panel. The back part is residence and the size is 24′ x 16′
• The only 220v item will be the stove.
• It will have baseboard heating and the usual outlets. no washer, no dryer, but it will have a hot water tank.
• Do I need a 200 amp service, or will 150, or even 100 amp service be adequate?

This electrical wiring question came from: Mick, a Homeowner from Yuma, AZ, Arizona.

Additional Question: I’m working on a remodel project where we will be adding a laundry room with a sink and the following circuits:

• Tank less water heater rated for 240 volt 40 amp 9600 watt.
• Clothes dryer rated 240 volt 30 amp 7200 watts.
• Lighting 120 volt 20 amp.

Is the sub-panel power adequate at 60 amp with 6 wire?

This electrical wiring question came from Mike, in phoenix, Arizona.

Dave’s Reply:
Thanks for your electrical wiring question Mick and Mike.

Electrical Panel Size Considerations

• Application: Main Electric Service Panel.
• Skill Level: Advanced – Best Installed by a Licensed Electrical Contractor – Not Recommended for Homeowners.
• Tools Required: Electricians pouch of hand tools and the various power tools necessary for the specific method of electrical service installation.
• Estimated Time: Depends on the type of panel, the location, and available access to the project area.
• Precaution: This is an extensive project. Working in an electric panel has possible arc flash hazards and should be performed by a Licensed Electrical Contractor.
• Notice: Installing an Electrical Service Panel should be done according to local and national electrical codes with a permit and be inspected.

Key Factors for Electrical Panel Size

• Type of Building and Size
  • There are several factors that must be considered when sizing an electrical panel, and some building departments may have size requirements as well, depending on the type of building and what it will be used for.
• Equipment Voltage and Amperage
  • All of the electrical loads must be determined stating the voltage and the amperage or watts.
• Calculations Base on Occupied Space
  • Some of the calculations may be made according to the size of the dwelling and actual occupied or living space.
  • Areas such as a garage are typically not a part of this calculation, however circuits for equipment in the garage will be a factor, such as a water heater, whole house vacuum system etc.
• Project Layout Design
  • Most all of these items are identified when a design engineer or architect creates the layout for the project and inserting all the devices as required by the local building codes.
• Building Department Approval
  • Submitting the plan or layout to the local building department is essential.
  • This is the all important planning step of the project that must be taken, otherwise the project will most likely not contain some of the essential circuits and equipment.
  • For Example: Required devices which are required for a home include:
    • Smoke Detectors.
    • GFCI Ground Fault Circuit Interrupters for protected outlets and devices.
    • AFCI – Arc Fault Circuit Interrupter.
    • Appliance circuits in specific locations.

When all of these required items have been identified then the panel size can be properly determined. It would be a shame to invest your resources to construct this building and then fall short where it really matters.

• Sizing a Sub Panel for a Laundry Room
  • Question #2 from Mike provides enough information to show that a 60 amp panel will easily become over loaded, especially when the dryer and tank less water heater turn on at the same time.
  • Keep in mind that ideally an electric panel should be loaded no moire than 80% of the load capacity.

More about Electrical Service Panel Projects

Electrical Codes for Services
Wiring Electrical Codes

Basic House Wiring Circuits

• House Wiring Circuits and Circuit Breakers

• This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.

Circuit Wiring

• Electrical Circuit Wiring

• This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.

Electrical Panel Circuit Listing

Electrical Circuit Breakers

• Home Electrical Circuit Breakers

• A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.

Electric Dryer Circuit
Electrical Project #1: Can I splice the electrical circuit wires for my dryer circuit?

• I have a dryer, side by side currently that I am moving to stackable to gain some space in our laundry room.
• The wiring is currently behind the dryer, and I need to move the 220v outlet maybe 16-20 inches so I can again plug in my dryer.
• The breaker box is at least 150ft from the dryer. It is OK to splice the 10-3 wire to add an additional 1-2 ft to move the 220v outlet.
• I know it’s probably not to code, but just looking to get my dryer back operational.

This electrical wiring question came from Andy, in Littletown, Colorado.

Electrical Project #2: Can I splice a 220 volt dryer line in a junction box?

• Can I splice together a 220 line for a dryer at a junction box halfway before I reach the receptacle? Splicing together the correct wires with wire nuts at a junction box? Will this be safe?

This electrical wiring question came from Doug in Sperryville, Virginia.

Dave’s Reply:
Thanks for your electrical wiring questions.

Splice Electric Dryer Circuit Wires

• Application: Splice an Electric Dryer Circuit.
• Skill Level: Intermediate to Advanced – Best performed by a Certified Electrician or Electrical Contractor.
• Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
• Estimated Time: Depends on personal level experience and ability to work with tools.
• Precaution: Identify the dryer circuit, turn it OFF and Tag it with a Note before working with the dryer circuit wiring.
• Important: Electric wiring and circuit components should be new electrical materials of the same voltage and amperage rating.
• Notice: Electrical Wiring modifications should be done according to local and national electrical codes and installing new or replacement electrical parts or equipment may require to have a permit and be inspected.

How to Splice and Extend an Electric Dryer Circuit

The following is an example of the process to extend a dryer circuit by using the existing outlet box as a junction box to extend the circuit wiring to a new location.

1. Turn Off the Electrical Power for the Dryer Circuit
   Identify the existing dryer circuit at the panel supplying the power and turn it off.
   Place a notice or tag at the panel to indicate that work is being done on the circuit.
   Use a voltage tester at the dryer outlet to ensure that the circuit power has been turned off.
2. Locate and Install the New Dryer Outlet Box
   Determine the desired location for the new dryer outlet to be used for the new stackable dryer unit.
   Consult the installation manual for detailed information about the new dryer outlet and cord. Attention should be given to the new dryer and the position and length of the cord to be sure the new outlet is located properly and is accessible when the new dryer is installed.
3. Install the New Length of Dryer Circuit Cable
   The new dryer circuit cable should be exactly the same as the existing dryer cable, being sure that the wire type and wire gauge matches the existing circuit wires.
   Install the additional length of dryer cable from the new dryer outlet to the existing dryer outlet.
   Protect and secure the new circuit cable and wiring according to the project application.

Convert the Existing Dryer Outlet into a Junction Box

• Remove the cover from the dryer outlet.
• Unscrew and remove the dryer outlet.
• Notice the location and connection of each wire of the dryer outlet, and any designation as indicated or labeled on the dryer outlet.
• Disconnect the wires leading to the outlet.
• Note: The splice box must remain in a location that will be accessible.

Grounding the Splice Box

• If the junction box is metallic then it will need to be bonded to the circuit ground wires using an approved ground lug or terminal which is fastened to the junction box enclosure, and the ground wires must be all bonded together using a wire connector.

Splicing the Dryer Circuit Wires

• Identify the individual dryer circuit wires and strip back the insulation about one inch.
• Splice the pairs of circuit wires together and install a wire connector to each pair of wires.

Cover the Splice Box

• Once the wires have been spliced together fold the wires back into the junction box.
• Install a blank cover over the junction box.

Install the New Dryer Outlet

• Strip back the insulation about one inch from each wire.
• Attach each wire to the new dryer outlet as the original installation, and as labeled on the dryer outlet.
• Install the dryer outlet to the outlet box.
• Install the outlet cover for the dryer outlet.

Test the Dryer Outlet

• Be sure all work is completed and the covers are installed and securely in place.
• Restore the circuit power to the dryer outlet.
• Test the dryer outlet for 240 volts, proper polarity, and ground connection.

More about a Dryer Circuit and Splicing Wires

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Junction Boxes for Electrical Repairs and Remodel Projects

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

How to Install Laundry Room Electrical Wiring

Laundry Room Electrical Wiring

Fully Explained Photos and Wiring Diagrams for Laundry Room Electrical Wiring with Code Requirements for most new or remodel projects.

How to Wire a Dryer Cord

3-Wire and 4-Wire Configurations for Clothes Dryers

See an electric dryer installation with a typical 220 Volt electric power cord wiring system. You may find yourself with either a 3-wire or 4-wire electric dryer, or a 3-wire or 4-wire outlet. Lets look a how the electric dryer is wired and what to do if your cord does not match the plug.

Home Electrical Wiring Codes

Electrical Code Articles for Home Wiring

Electrical Code Directory covering electrical boxes, electrical circuit wiring and more.

Splicing Electrical Wires

Electrical Junction Box Splice

Electrical junction box splices can be made safely when you understand the method. This example will show you how its done step by step and shows how to make a junction box splice and the related electrical codes.

Electric Dryer Circuit
Electrical Project #1: Can I splice the electrical circuit wires for my dryer circuit?

• I have a dryer, side by side currently that I am moving to stackable to gain some space in our laundry room.
• The wiring is currently behind the dryer, and I need to move the 220v outlet maybe 16-20 inches so I can again plug in my dryer.
• The breaker box is at least 150ft from the dryer. It is OK to splice the 10-3 wire to add an additional 1-2 ft to move the 220v outlet.
• I know it’s probably not to code, but just looking to get my dryer back operational.

This electrical wiring question came from Andy, in Littletown, Colorado.

Electrical Project #2: Can I splice a 220 volt dryer line in a junction box?

• Can I splice together a 220 line for a dryer at a junction box halfway before I reach the receptacle? Splicing together the correct wires with wire nuts at a junction box? Will this be safe?

This electrical wiring question came from Doug in Sperryville, Virginia.

Dave’s Reply:
Thanks for your electrical wiring questions.

Splice Electric Dryer Circuit Wires

• Application: Splice an Electric Dryer Circuit.
• Skill Level: Intermediate to Advanced – Best performed by a Certified Electrician or Electrical Contractor.
• Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
• Estimated Time: Depends on personal level experience and ability to work with tools.
• Precaution: Identify the dryer circuit, turn it OFF and Tag it with a Note before working with the dryer circuit wiring.
• Important: Electric wiring and circuit components should be new electrical materials of the same voltage and amperage rating.
• Notice: Electrical Wiring modifications should be done according to local and national electrical codes and installing new or replacement electrical parts or equipment may require to have a permit and be inspected.

How to Splice and Extend an Electric Dryer Circuit

The following is an example of the process to extend a dryer circuit by using the existing outlet box as a junction box to extend the circuit wiring to a new location.

1. Turn Off the Electrical Power for the Dryer Circuit
   Identify the existing dryer circuit at the panel supplying the power and turn it off.
   Place a notice or tag at the panel to indicate that work is being done on the circuit.
   Use a voltage tester at the dryer outlet to ensure that the circuit power has been turned off.
2. Locate and Install the New Dryer Outlet Box
   Determine the desired location for the new dryer outlet to be used for the new stackable dryer unit.
   Consult the installation manual for detailed information about the new dryer outlet and cord. Attention should be given to the new dryer and the position and length of the cord to be sure the new outlet is located properly and is accessible when the new dryer is installed.
3. Install the New Length of Dryer Circuit Cable
   The new dryer circuit cable should be exactly the same as the existing dryer cable, being sure that the wire type and wire gauge matches the existing circuit wires.
   Install the additional length of dryer cable from the new dryer outlet to the existing dryer outlet.
   Protect and secure the new circuit cable and wiring according to the project application.

Convert the Existing Dryer Outlet into a Junction Box

• Remove the cover from the dryer outlet.
• Unscrew and remove the dryer outlet.
• Notice the location and connection of each wire of the dryer outlet, and any designation as indicated or labeled on the dryer outlet.
• Disconnect the wires leading to the outlet.
• Note: The splice box must remain in a location that will be accessible.

Grounding the Splice Box

• If the junction box is metallic then it will need to be bonded to the circuit ground wires using an approved ground lug or terminal which is fastened to the junction box enclosure, and the ground wires must be all bonded together using a wire connector.

Splicing the Dryer Circuit Wires

• Identify the individual dryer circuit wires and strip back the insulation about one inch.
• Splice the pairs of circuit wires together and install a wire connector to each pair of wires.

Cover the Splice Box

• Once the wires have been spliced together fold the wires back into the junction box.
• Install a blank cover over the junction box.

Install the New Dryer Outlet

• Strip back the insulation about one inch from each wire.
• Attach each wire to the new dryer outlet as the original installation, and as labeled on the dryer outlet.
• Install the dryer outlet to the outlet box.
• Install the outlet cover for the dryer outlet.

Test the Dryer Outlet

• Be sure all work is completed and the covers are installed and securely in place.
• Restore the circuit power to the dryer outlet.
• Test the dryer outlet for 240 volts, proper polarity, and ground connection.

More about a Dryer Circuit and Splicing Wires

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Junction Boxes for Electrical Repairs and Remodel Projects

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

How to Install Laundry Room Electrical Wiring

Laundry Room Electrical Wiring

Fully Explained Photos and Wiring Diagrams for Laundry Room Electrical Wiring with Code Requirements for most new or remodel projects.

How to Wire a Dryer Cord

3-Wire and 4-Wire Configurations for Clothes Dryers

See an electric dryer installation with a typical 220 Volt electric power cord wiring system. You may find yourself with either a 3-wire or 4-wire electric dryer, or a 3-wire or 4-wire outlet. Lets look a how the electric dryer is wired and what to do if your cord does not match the plug.

Home Electrical Wiring Codes

Electrical Code Articles for Home Wiring

Electrical Code Directory covering electrical boxes, electrical circuit wiring and more.

Splicing Electrical Wires

Electrical Junction Box Splice

Electrical junction box splices can be made safely when you understand the method. This example will show you how its done step by step and shows how to make a junction box splice and the related electrical codes.

More about