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Electric : Installation of Electric Service
Outage Readiness
Electrical Safety Tips
Power Supply

    Temporary Service:

    Complete the NEW Electric Service Application and fax to City Hall (608) 825-1194 when service is ready for inspection. The temporary electrical service will then be inspected and the Application will be forwarded to SPU for connection.

    Note: When using a temporary service for more than one property, always use the address of the last property that is going to be completed.

    Permanent Service:

    Forward a copy of the plot plan showing the intended location of the electric meter to SPU (608) 825-6001 for approval.

    Forward the completed NEW Electric Service Application and Approved plot plan to City Hall (608) 825-1194 when service is ready for inspection. Use CORRECT ADDRESS or PERMIT # (not lot #). The service will then be inspected and the Application will be forwarded to SPU.

    Note: Do not install electrical service until floor deck is on.
    Make sure grade is above bottom of pedestal so utility company conductors will not be exposed.
    Make sure remote water meter wire is out by the pedestal and the Application is initialed as such.
    Load center must be accessible for inspection.

Multiple meter services must be properly numbered with permanent adhesive numbers. House meter shall have lowest address and an H. Also number corresponding panels inside hinged cover.

Application For Installation of Electric Service Form

Installation of Commercial/Industrial 3-Phase Service


When installing 3ph service to a business or industry, utilities differ greatly on their requirements. At Sun Prairie Utilities, the customer is responsible for the following:

1) Forming/pouring a concrete transformer pad (see specification drawing). Note: a preformed pad may also be acceptable, if first approved by Utilities. This work includes installing the primary and secondary conduit bends (as required). Contact SPU to discuss pad location/orientation, assuring that the location meets all NEC requirements.

2) Installing conduits, as required, for Charter and Verizon respectively. Typically (1)2" or 4" is required for each utility from the building to the side of the transformer. (See specification drawing)

3) Installing secondary cables from the building to the transformer and connecting at both ends. For customer connections inside the transformer, SPW&L supplies secondary blocks with set screws. Work to be coordinated with Sun Prairie Utilities. (Note: the Utility will install CTs inside the transformer and mount/install the customer meter directly on the transformer, thus eliminating the need for a CT cabinet on the building).

4) Grading the trench route to within 4" of final grade. SPU may also request property to be staked.

**If applying for a construction temporary service, it is generally most economical to install the permanent transformer to feed the temporary.

Sun Prairie Utilities will be responsible for the installation of primary conductors and the transformer.

3-Phase Transformer Specification

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