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Electrical Wire and Cable
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Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet How to Installing and Wire Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Electrical Repairs - Part 3

electrical cable repair
Summary: Emergency electrical repairs using the heat shrink method makes a good tightly fitted insulated covering that helps protects the wire repair in this accessible electrical junction box also known as a ground box enclosure.


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The Heat Shrink Method for Electrical Repairs of Direct Burial Cables



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NOTE: Identify your Power Source and make SURE the Power is OFF!


Ground Box Enclosure for Electrical Repairs of Direct Burial Cables

Here is a quick overview of the installed junction box to make this able repair accessible. This repair was for a set of #8 Gauge wires serving a water pump submerged in a pond. The buried Power and Communications conduit was not buried at the required 18 inch minimum and was snagged by a tractor. Because of the break in the conduit, I decided to place the cable repair into an accessible junction box. The cable repair method was crimp sleeves and heat shrink tubing. Below you will see a summary of the process.

Tools for Electrical Repairs of Cables using crimp sleeves heat shrink tubing

electrical shrink tubing crimpingtool heat gun shrink tube
Shrink Tubing and
crimp sleeve
Cable Crimping Tool Heat gun
to shrink the tubing

Size the Crimp Sleeve to the wire gauge, and the Shrink Tubing to the Crimp Sleeve.

Select the Crimping Tool to the Sleeve Size.

The Heat Gun or Torch can be used as approved by the Shrink Tubing specifications.

The Ground Box Enclosure Process:
preparethewires crimponeside

Dig a hole large enough to accommodate the size of your ground box so that the cover will be level with the grade of the soil.
Prepare the wires to receive the crimp sleeves being careful to strip back the insulation so the end of the wire will reach all the way to the mid point of the sleeve. The manufacturer has placed a crimp in the middle as a stopping point for each wire.
Making sure the wire is all the way to the mid point, crimp one side of each sleeve.
Size the shrink tubing to the longest side of the exposed insulated portion of the wires, but allow room for the remaining side of the sleeve to be crimped.
Slide the shrink tubes onto the long side of each wire and crimpthe opposite side.Slide the shrink tubing over the crimp sleeve so the center area is covering the mid point of the crimped sleeve.

Caution!

firehazard Caution! The heat gun or torch can be hot enough to burn you, and could ignite your clothing.
fireextingusher Take preventive safety measures.

One by one, carefully apply heat to the center area in a circular motion to distribute the heat out toward each side, while working the heat around the wire, being careful not to overheat the shrink tubing. As you see the tubing shrink, move the heat towards the outside on one side. Repeat the process for the opposite side of the wire.

Repeat the connection process for each wire.
cable repair 1 cable repair 2
cable repair 3 cable repair 4
cable repair 5 cable repair 6

Ground Box Enclosure Considerations

The plastic box shown above can be used in areas which have foot traffic but is not intended for heavy traffic, livestock or vehicle traffic areas. Areas of high traffic should be equipped with a concrete box, and heavy weighted traffic areas, such as vehicle traffic, should be equipped with heavy gauge steel traffic lids. Bolted and secured lids would be advised for livestock areas.

Always consult your supplier to assist you when selecting the proper ground box for your application.

The electrical enclosure box area should not be submerged, in standing water areas, or under water at any time. Keep the inside of the box as dry as possible.

Placing a layer of gravel in the hole before placing the box in position will help the box to drain any condensation.

The gravel depth should be taken into consideration when planning the depth of the hole.

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Wire a GFCI Outlet without a Ground Wire

Helping You Wire it Right

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Complete Guide to Home Electrical Wiring
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Interconnected Smoke Detector Wiring
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Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.





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