Overhead Underground Electrical Service Wiring Grounding Main Circuit Breaker Panel Meter Box Manufactured Mobile Homes Electrical Service Wiring Diagrams
Mobile Home Power Pole Overview
Mobile home manufactured homes 200 amp electrical service power pole diagrams shown below are for an overhead and underground configurations. The first diagram is an above ground or overhead electrical service power pole, using a utility pole or what is often called a telephone pole. The second diagram is an underground electrical service. These wiring diagrams are in accordance with the National Electric Code. Most localities are requiring now that you have a 200 Amp four wire service with 2 ground rods at least 6 feet apart for grounding mobile home electric services. The service should consist of two hot legs a neutral and a redundant ground wire (4 wires). The redundant ground is for added safety on mobile homes. The electrical services schematic diagrams can be used for reference and may differ from your local codes. These diagrams typically meet the mobile homes electric service pole requirements in many locations. Check with your local building inspections department for local mobile home power service pole requirements. Most locations allow use of a treated 6"x6"x20' pole for use as the service pole. After you have the power connected take a look at this page to test for the proper voltage levels at the main service disconnect panel.
Mobile Home Power Pole Electrical Service Wire Sizes
What size wire do I need for a 200 amp mobile home electric service power pole? I get this question a lot. It will depend on whether you use copper or aluminum conductor wires. Most all mobile homes and manufactured homes now have a minimum 200 amp requirement for electrical service wiring. All wiring shall comply with Article 550 of the National Electric Code. Use (4) separate insulated conductors approved for ampacity of main service disconnect. See wire size below.
Copper Wire Aluminum Wire
.png "Copper and aluminum Wire Ampacity ratings by AWG Size")
NOTE: Hot/Neutral wiring must be all copper or all aluminum, no mixing types of wire. The homes electrical service wiring if done with aluminum conductors can still use a copper ground wire that connects to the grounding rod
Over Head Electrical Service Wiring Diagram Mobile Home Power Pole
Under Ground Electrical Service Wiring Diagram Mobile Home Power Pole
Miscellaneous Mobile Home Power Pole Requirements
Here are some typical requirements in many locations for a mobile home power pole. Check with your local authority for any superseded or additional zoning codes and regulations.
Meter can be mounted on the home only if HUD approved by the homes manufacturer.
Note: Some locations will allow the electric meter to be attached to manufactured homes if it is on a permanent foundation.
Service equipment and meter must be within 30’ of the home.
Any outside receptacles must be on G.F.C.I. protection with wet location covers.
Ground Rod Installation: Install two 8-foot grounding rods a minimum of 6 feet apart. Some locations may require a grounding grid instead of ground rods, but that is rare.
Top of the ground rods must be flush or below grade ( ground level ).
Bonding at the homes main panel goes to the neutral bus bar; bonding at the sub-panel goes to the grounding bus bar. Remove the jumpers in the sub-panel so the neutral and grounding bus bars are isolated. Bond the panel enclosure.
Mobile home power pole and service entrance frequently asked questions
Q. How far should the power pole be from the mobile home or what is the distance between the mobile home and the power pole?
A. Most inspection authorities set the distance at no less than 8 feet to and no more than 30 feet from the home. Be sure to check with your local inspector for local requirements.
If you use aluminum wire be sure to use an anti-oxidant compound on the wires at the connection points.