Quick Hits

Episode 4: Circuit Wiring & Portable Grounding (702.10 – 702.11)

SLIDE 1 (HOOK / COVER) ⚡ NEC Quick Hit: Wiring & Generator Grounding (Part 4 - Article 702) ⚡ 

Can you run optional standby wires in the same pipe as normal general wiring? How do you properly ground a portable generator? Let's wrap up Article 702! 👇

SLIDE 2 (WIRING FLEXIBILITY) Sharing Raceway Space:

• General Wiring Freedom: Under Section 702.10, optional standby system wiring is permitted to occupy the same raceways, cables, boxes, and cabinets with other general wiring.

• Note: Just like legally required systems (Article 701), you aren't forced to run entirely independent conduits like you are with emergency systems (Article 700).

SLIDE 3 (PORTABLE GENERATOR GROUNDING) Grounding Rules for Portables:

• Separately Derived: If configured as a separately derived system, it must comply with Section 250.30 (bonding the neutral and establishing a grounding electrode system).

• Nonseparately Derived: If configured as a nonseparately derived system, the equipment grounding conductor must be bonded to the system grounding electrode.

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

Under 702.12(B), portable generators rated at 15 kW or less using a flanged cord-and-plug inlet do not require a separate building disconnect as long as the inlet is installed safely on the outside of the structure.

💬 Save this post for your next portable generator transfer switch install! 🔗 

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