Quick Hits

Episode 3: Wiring Methods, Disconnecting Means & Distribution Boxes (525.20 – 525.23)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: Midway Wiring & Disconnects (Part 3) ⚡

What cord types are permitted on amusement rides? Where must emergency ride disconnects be located? Let's review Sections 525.20 through 525.23! 👇

SLIDE 2 (FLEXIBLE CORDS & CABLES)

Extra-Hard Usage Rules:

• Cord Requirements: Flexible cords and cables must be listed for extra-hard usage. Hard-usage cords are permitted only if not subject to physical damage. Outdoors, cords must also be wet-location and sunlight-resistant.

• Single Conductors & Splices: Single-conductor cables are permitted only in sizes 2 AWG or larger. Flexible cords must be continuous without splices or taps between boxes or fittings.

• Public Access: Cord connectors cannot be laid on the ground unless listed for wet locations, and cable connections must be guarded in public traffic paths.

SLIDE 3 (DISCONNECTING MEANS & DISTRIBUTION BOXES)

Operator Control & Weatherproofing:

• Moving Rides: Each portable ride must have a disconnect located within sight of and within 1.8 m (6 ft) of the operator's station, readily accessible during operation, and lockable if accessible to the public.

• Distribution Boxes: Portable distribution boxes installed outdoors must be weatherproof and mounted so the bottom of the enclosure is at least 150 mm (6 in.) above the ground to prevent moisture entry.

SLIDE 4 (WRAP-UP)

💡 Apprentice Pro-Tip: Mounting distribution boxes at least 6 inches off the ground also ensures proper cable bending radii as conductors enter from below!

💬 Save this post for your next outdoor carnival rough-in!

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