426.44 Grounding.The ferromagnetic envelope shall be connected to an equipment grounding conductor at both ends;and,in addition,it shall be permitted to be connected to an equipment grounding conductor at intermediate points as required by its design.
The provisions of 250.30 shall not apply to the installation of skin-effect systems.
FBN:For Grounding methods,see article 250.
Article 250
Grounding and Bonding: