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The equipment bonding jumper shall be sized in accordance with (1) or (2) as follows:
  1. If the grounding electrode conductor connection is made at the grounding impedance, the equipment bonding jumper shall be sized in accordance with 250.66, based on the size of the service entrance conductors for a service or the derived phase conductors for a separately derived system.
  2. If the grounding electrode conductor is connected at the first system disconnecting means or overcurrent device, the equipment bonding jumper shall be sized the same as the neutral conductor in 250.36(B).

Related Code Sections

(G) Wiring and Protection, Equipment Bonding Jumper Size
The equipment bonding jumper shall be sized in accordance with (1) or (2) as follows: If the grounding electrode conductor connection is made ...
(G) Wiring and Protection, Equipment Bonding Jumper Size
The equipment bonding jumper shall be sized in accordance with (1) or (2) as follows: If the grounding electrode conductor connection is made ...