Quick Hits

Episode 1: Scope, Listing Mandates & Mandatory GFCI Protection (422.1 – 422.5)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: Appliances (Part 1 - Article 422) ⚡

Appliance scopes, 50-volt listing rules, and mandatory GFCI protection for dishwashers and sump pumps—welcome to Article 422! How does the National Electrical Code regulate electrical appliances across all occupancies? Let's break down the fundamentals! 👇

SLIDE 2 (SCOPE & LISTING REQUIREMENTS)

What Article 422 Covers:

• Broad Application: Covers electrical appliances used in any occupancy that are fastened in place or cord- and plug-connected (such as air conditioners, dishwashers, and water heaters).

• Listing Mandate: All appliances supplied by 50 volts or higher must be listed.

SLIDE 3 (MANDATORY GFCI PROTECTION)

Protecting Personnel:

• Covered Equipment: Class A GFCI protection is strictly required for appliances rated 150 volts or less to ground and 60 amperes or less, including:

  • Automotive vacuum machines and tire inflators

  • Drinking water coolers and bottle fill stations

  • Cord- and-plug-connected high-pressure spray washers

  • Vending machines and sump pumps

  • Dishwashers
    
    

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

Always verify that dishwashers, sump pumps, and water coolers have readily accessible GFCI protection—missing a GFCI on a dishwasher or water cooler is an instant code violation!

💬 Save this post for your next residential kitchen and utility rough-in!

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