Template · Commercial and industrial

Temporary construction power single line diagram

100A temporary service on a pole with GFCI circuits. Use this for temporary power on a construction site: a 100A service on a pole, with GFCI-protected circuits for tools and a feed for the site trailer.

A free template with typical ratings, conductor callouts and general notes. Open it, change what differs on your job, fill in the title block and export a PDF.

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Temporary construction power single line diagram: 100A temporary service on a pole with GFCI circuits. — Temporary construction power. 13 devices on an 11 × 17 in sheet with a title block and notes column.

What the reviewer checks on this drawing

The reviewer looks for GFCI protection on the receptacle circuits, a pole built to the utility’s standards, the ground rod, and inspection before the service is energized.

What the drawing shows

Every device on the sheet, in the order power reaches it.

Symbol	Label	Rating or detail
Utility source	Utility service	120/240V 1φ 3W, temporary drop
Meter	Utility meter	100A socket on temporary pole
Circuit breaker	100A 2P	Main breaker
Panel	Temporary power panel	100A · NEMA 3R
Ground	Ground rod	#6 Cu GEC
Circuit breaker	20A GFCI
Load	Receptacles	GFCI protected
Circuit breaker	20A GFCI
Load	Receptacles	GFCI protected
Circuit breaker	50A 2P
Load	Site trailer
Circuit breaker	30A 2P
Load	Spider box	GFCI outlets

Notes on the sheet

All 125V 15A, 20A and 30A receptacles for construction use are GFCI protected.
Temporary pole braced and installed to utility standards. Remove at completion.
Temporary wiring inspected before energizing.

Diagram is schematic and not to scale. Field-verify existing equipment ratings. Ratings and conductor sizes shown are typical. Confirm against the adopted code, the equipment listing and a load calculation before installation. Code references are to the 2023 NEC and the 2024 Canadian Electrical Code: see references and editions.