(a) Grounding of impedance grounded neutral systems shall be accomplished in a manner illustrated by Diagram 2741, if practicable.
(b) If the impedance grounded neutral conductor is carried into the premises, it shall be identified, as well as fully insulated with the same insulation as the phase conductors.
(c) The system neutral shall not be connected to ground except through the neutral grounding impedance.
(d) Equipment grounding conductors shall be permitted to be bare and shall be connected to the ground bus and grounding electrode conductor at the service entrance equipment. (See Diagram 2741.)
(Title 24, Part 3, Section 250-153.)
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.
1. Editorial correction filed 11-2-83 (Register 83, No. 45).
2. Amendment filed 12-10-87; operative 1-9-88 (Register 88, No. 1).
IMPEDANCE GROUNDED SYSTEM
2. Change without regulatory effect providing more legible versions of Diagram 2741 filed 11-6-2008 pursuant to section 100, title 1, California Code of Regulations (Register 2008, No. 45).