NEC Article Guide

Master Article 250 - Grounding and Bonding

Article 250 covers all grounding and bonding requirements.

Key Rules and Sections

Code Rule

250.4: General requirements.

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250.24: Grounding service equipment.

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250.28: Main bonding jumper.

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250.52: Grounding electrodes.

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250.53: Installation of electrodes.

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250.64: GEC installation.

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250.104: Bonding of piping.

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250.118: EGC types.

Code Rule

250.119: EGC identification.

Code Rule

250.122: EGC sizing.

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