Quick Hits

Episode 4: Recreational Vehicle Park Sites & Receptacles (551.71 – 551.81)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: RV Park Site Requirements (Part 4) ⚡

Site receptacle percentages, 50A/30A/20A breakdowns, and underground burial rules—let's finish Article 551! 👇

SLIDE 2 (RV SITE RECEPTACLE BREAKDOWN)

Mandatory Park Infrastructure:

• Site Equipment Percentages: Every RV site with electrical supply must provide a 20A, 125V weather-resistant receptacle. In addition, a 30-ampere receptacle is required at a minimum of 70% of sites, and a 50-ampere receptacle at a minimum of 40% of new sites (20% for existing sites). Sites with 50A must also feature a 30A receptacle.

• Underground Protection: Direct-burial cables entering or leaving trenches must be protected by approved raceways extending at least 450 mm (18 in.) into the trench from finished grade.

SLIDE 3 (PARK DISTRIBUTION & PEDESTAL PLACEMENT)

Safe Campground Feeder Layout:

• Disconnects & Placement: Site supply equipment requires a disconnecting switch or circuit breaker located on the left (road) side of the parked vehicle within specific positioning ranges from the rear of the stand.

• Neutral Sizing: Feeder and branch-circuit neutral conductors supplying recreational site distribution must not be reduced in size smaller than the ungrounded conductors.

SLIDE 4 (WRAP-UP) 💡 Apprentice Pro-Tip: 

Always kill the breaker at the site pedestal before plugging or unplugging a 50-amp RV cord to prevent arcing and protect against intermittent neutral overvoltage!

💬 Save this post for your final code review on RV Parks!

🔗 More code breakdowns and study tools at www.JoshTheSparky.com

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