Electrical

This handout is a compilation of some of the standard requirements based on the State Building Code and City Ordinance for projects of this type. This information packet does not contain all the specific codes for construction and should only be used as a guide. The permittee is responsible to meet all code requirements applicable to each project.

Submittals:

• Permit Application-Electrical

Typical Inspections:

• Electrical Rough-In
• Electrical Final

To schedule electrical inspections, contact McMullen Inspecting at www.McMullenInspecting.com  or
(612) 866-1979  Office Hours M-F 7am-8:30 am

·       For typical residential electrical code requirements please review MN DLI handout .

·       All work must be inspected prior to being covered.

·       Minimum permit fee is a one trip inspection. 

·       Total permit fee is calculated by adding the fees on the application or by $75 multiplied by the number of required inspection trips, whichever is greater. 

Rough-In Inspection

This inspection must be done before any wiring is covered by insulation, sheetrock, paneling, etc. Underground wiring must be inspected before the trench is covered.

·        At all boxes, there must be minimum wire length of six inches including the grounding conductors.

·        The outer cable jacket must extend at least ¼” into the box.

·        All splicing of ground wires and other wires must be completed with approved splicing devices when calling for inspection.

·        In receptacle boxes with more than one cable in the box, the ground wires must be spliced with a wire tail to be attached to the ground screw on the receptacle or switch, as only one conductor is permitted under a terminal screw.

·        All metal boxes and equipment must be grounded.

·        The volume of boxes must be sufficient for the number of conductors and other items contained in the Box. (See NEC art. 314-16 for box sizing)

·        Do not install junction boxes in attic or conceal them in walls.

·        All junctions and splices should be made in boxes that are used for fixtures, switches, or receptacles. If a regular box is too small, use a larger volume box. (See NEC 314-16)

·        Plastic cable must be stapled at intervals not exceeding 4 & ½’, and within 8” of plastic boxes.

·        Plastic cable must not be installed within 1 & ¼” of the face of studs, joists, strips, or any framing members. This applies to cables installed through bored holes or cables strapped to the sides of studs or strips. Cables closer than 1 & 1/4” must be protected with metal plates or sleeve a minimum of 1/16” thick.

·        Outlet boxes may not be used as sole support of ceiling fans. Special approved fan boxes should be used for support of ceiling fans.

·        Ground fault circuit interrupters must be used for receptacles located in bathrooms, garages, outside locations, within 6’ of kitchen or bar type sinks, and unfinished areas of basements. (see NEC 210-8 for further details of GRI protection requirements)

·        Recessed lighting fixtures installed in insulated areas must be IC rated. All recessed lighting fixtures must be installed as per the manufacturer's instructions. (Some are not approved for wiring with plastic cable.)

·        See NEC 201.12 for required use of ARC/Fault protection.

·        See NEC 406.12 for required use of tamper resistant receptacles

Final Inspection

The law requires that the final inspection be made on wiring for all new homes, additions, and remodeling. It is unlawful to occupy a new home before all wiring is completed, inspected and approved.

It is the responsibility of the permit holder to call for the final inspection when all devices and fixtures have been installed, and wiring is entirely completed including the cover plates.