Electrical Question from Ralph about Electrical Service Upgrade
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Question: My wife and I bought a fixer upper mobile home that needs the electrical upgraded. We are upgrading the service to 150 amps. |
Electrical Question from Ralph about Electrical Service Upgrade
Received from Ralph a Contractor in Queensbury, NY
[ad#block]Question: My wife and I bought a fixer upper mobile home that needs the electrical upgraded. We are upgrading the service to 150 amps. The line that comes into the mobile home has 4 wires, I am assuming three are hot and 1 is a ground. Question is, do I have to replace the service entry wire so that it is a 3 wire entry because the 150 amp box only has three spaces for wires to the main breaker which I assume is two hot and a ground?
Dave’s Reply:
Thanks for your electrical question.
Please do not assume ANYTHING! Especially with Mobile or Modular Homes.
These types of homes require a totally isolated Ground and Neutral wire from the electrical service point of entry and then throughout the electrical wiring system.
This system is 2-Hots, 1-Neutral and 1-Ground. The Neutral and Ground wires may NOT be bonded for the circuits in the home, only at the main electrical service panel.
When upgrading to a larger electrical service this will require new service wires that are sized to the capacity of the new electrical service.
Please consult a Licensed Electrical Contractor to do this for you. This will require a permit and inspection. You can find qualified electricians by using the link below.
The Following links will assist you with your electrical question:
For more information about Wiring Diagram
Wiring Diagrams
This link is helpful as a Contractor
Electrical Code Articles
Make sure not to miss these Resources for: How-To-Videos
Electrical Videos
Be Careful and Be Safe – Never Work on Energized Circuits!
For Best Results Consult a Licensed Electrical Contractor.
Locate An Electrical Contractor in Your Area
The following may also be helpful for you:
Learn more about Home Electrical Wiring
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I have a homeowner’s grant and one part is for an electrical upgrade…I live in a mobile home…what exactly does that entail? Here’s the job detailed by the funders – Supply and install materials to upgrade the interior and exterior electrical system, to meet minimum standards and unit demands. All remedial work affected by the electrical work shall be the contractor’s responsibility. Permit and Inspection to be obtained as per local codes. All repairs to be undertaken by a qualified electrical contractor.
So far the contractor’s workers have only replaced the outlets and the switches (missed a few though)…the job is costing me $4640
Hi Judy
I may have already addressed this topic, however the extent of an electrical upgrade will depend on several factors specific to the home dwelling, the age of the condition of electrical wiring, electrical code violations, and any plans for additional electrical equipment or circuits. The details of your specific grant should be available to you through the department who issued the grant to you. Considerations may include safety devices such as smoke detectors and GFCI devices as well as an inspection of the existing electrical service.
Dave