Quick Hits

Episode 1: Scope, Reconditioned Ban, Enclosures & Guarding (460.1 – 460.4)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: Capacitor Installations (Part 1 - Article 460) ⚡

Power factor correction capacitor scopes, the strict ban on reconditioned units, and flammable liquid enclosure rules—welcome to Article 460! Let's break down the fundamentals! 👇

SLIDE 2 (SCOPE & RECONDITIONED EQUIPMENT BAN)

What Article 460 Covers & Prohibits:

• System Scope: Article 460 covers the installation of capacitors on electrical circuits, excluding surge capacitors and components built into other apparatus.

• Reconditioned Ban: Reconditioned capacitors are strictly prohibited from being installed.

SLIDE 3 (FLAMMABLE LIQUIDS & ACCIDENTAL CONTACT)

Enclosures and Safeguards:

• Flammable Liquid Threshold: Capacitors containing more than 11 liters (3 gallons) of flammable liquid (applied to any single unit) must be enclosed in vaults or outdoor fenced enclosures per Article 110 Part III.

• Guarding Live Parts: Capacitors accessible to unauthorized and unqualified persons must be guarded or enclosed to prevent accidental contact with energized parts, terminals, or buses.

SLIDE 4 (WRAP-UP)

💡 Apprentice Pro-Tip: Always check your capacitor oil volume—any single unit containing over 3 gallons of flammable liquid demands a rated vault or outdoor fenced enclosure!

💬 Save this post for your next power factor correction layout!

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

← View Chapter 4 Home

← Article 460 Capacitors

← Back To Quick Hits Home