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Home > NEC > Violations > Illustrated Code Catastrophes: Article 358, Section 300.5 and 250.64

Illustrated Code Catastrophes: Article 358, Section 300.5 and 250.64

More Code catastrophes uncovered in these faulty installations
Apr. 1, 2012 Joe Tedesco, NEC Consultant | Electrical Construction and Maintenance
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More Code catastrophes uncovered in these faulty installations

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Discuss this Article 3

Anonymous (not verified)
on Aug 28, 2012

Doesn't a #4 awg fall under the exact same category as a #6 awg? Both require conduit if exposed to physical damage. Assumption: all gec conductors larger than #8 can be run on surface without conduit if not exposed to physical damage. It appears repetitive and confusing.

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Jose A. Guillen (not verified)
on Sep 29, 2012

it is a judgment call if you knowingly see its location. Think if it is exposed to damage yes protect it but if it is secured correctly and not in the path of being damaged yes it doesnot have to be encased or protected that is what the code is trying to say my friend.

  • reply
Anonymous (not verified)
on Oct 11, 2012

"4 AWG or larger copper or aluminum grounding electrode conductor" doesn't even need to be mentioned. The reason #4awg is mentioned is because in the 2002 Nec a #4awg only required protection when exposed to"severe" damage, the word "severe" was taken out in 2005. The whole sentence should have been taken out. This is interpreted differently by local AHJ's.

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  • Illustrated Code Catastrophes: Sections 314.15, 300.5(B), 300.6(B), and 240.21(A) through (H)
  • Illustrated Code Catastrophes: Sec. 400.8(1), 422.18, 300.15, 300.10, 250.120(A), and 250.4(A)(3)
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