Quick Hits

Episode 3: Grounding, EGCs & Metal Parts Bonding (682.30 – 682.32)

SLIDE 1 (HOOK / COVER) ⚡ NEC Quick Hit: Grounding & Metal Bonding Near Water (Part 3) ⚡

How do you size equipment grounding conductors near retention basins and ponds? What metal parts must be bonded? Let's check out Part III of Article 682! 👇

SLIDE 2 (INSULATED EQUIPMENT GROUNDING CONDUCTORS)

Copper EGCs Sized for Safety:

• Mandatory Insulated EGC: Metal boxes, cabinets, equipment frames, and receptacle grounds must be tied to an insulated copper EGC run with circuit conductors, sized per Table 250.122 but not smaller than 12 AWG.

• Cord-Connected Gear: Cord-and-plug appliances must be grounded via an EGC in the cord and a grounding plug.

SLIDE 3 (BONDING ALL METAL PARTS)

Eliminating Potential Differences:

• Water-Contact Bonding: All metal parts in contact with the water, metal piping, tanks, and any non-current-carrying metal parts likely to become energized must be bonded to the grounding terminal in the electrical distribution equipment.

SLIDE 4 (WRAP-UP)

💡 Apprentice Pro-Tip: Uninsulated EGCs are strictly prohibited in corrosive or conductive environments like storm water basins and sewage treatment ponds. Always pull a dedicated insulated copper EGC!

💬 Save this post for your next water treatment facility installation! 🔗 

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

← View Chapter 6 Home

← Back To Article 626 Home

← Back To Quick Hits Home