Template · Service and panels

RV pedestal at a house single line diagram

An underground feeder to a pedestal with 50A, 30A and 20A receptacles. Use this for an RV parking pad at a house: an underground feeder to a pedestal with a 50A, a 30A and a 20A receptacle.

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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RV pedestal at a house single line diagram: an underground feeder to a pedestal with 50A, 30A and 20A receptacles. — RV pedestal at a house. 15 devices on an 11 × 17 in sheet with a title block and notes column.

What the reviewer checks on this drawing

The inspector checks the feeder size, ground-fault protection on all three receptacles, the 30A receptacle wired for 120V, the neutral isolated at the pedestal and the burial depth.

What the drawing shows

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

Symbol	Label	Rating or detail	Conductors feeding it
Utility source	Utility service	120/240V 1φ 3W
Meter	Utility meter	200A socket	Service conductors, per utility
Circuit breaker	200A 2P	Main breaker
Panel	Main panel	200A bus · 120/240V
Circuit breaker	Branch breakers
To (continues off sheet)	To house loads
Circuit breaker	60A 2P	RV pedestal
Panel	RV pedestal	100A MLO · NEMA 3R	3 #6 Cu + #10 G, PVC underground
Grounding electrode	Ground rod	At pedestal, where, the AHJ requires it
Circuit breaker	50A 2P	GFCI
Receptacle	RV receptacle	50A · NEMA 14-50R, 120/240V	3 #6 Cu + #10 G
Circuit breaker	30A 1P	GFCI
Receptacle	RV receptacle	30A · NEMA TT-30R, 120V	2 #10 Cu + #10 G
Circuit breaker	20A 1P	GFCI
Receptacle	Receptacle	20A · NEMA 5-20R	2 #12 Cu + #12 G

Notes on the sheet

One RV at a time: the load is that of the largest receptacle, 12,000 VA for the 50A (the method of NEC 551.73(A)). 12,000 VA ÷ 240V = 50A, on the 60A feeder.
The 30A TT-30R receptacle is 120V only: one pole and a neutral, never wired 240V. The 50A 14-50R is 120/240V, four-wire.
GFCI protection on all three: outdoor receptacles at a dwelling, 125V through 250V (NEC 210.8(A), 2020 and later). The 2017 edition asked for it on the 20A only. The relief for RV site receptacles in NEC 551.71(F) is for RV parks, not for a house.
Neutral isolated from the pedestal enclosure and equipment ground bonded. A grounding electrode at the pedestal where the AHJ treats a pedestal fed by a feeder as a separate structure (NEC 250.32).
Burial depth per the adopted code for the wiring method used.

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.