Ground resistance measurements.

CFR · 2024-01-01 · US · Title 7

(a) The resistance of the central office (CO) and the remote switching terminal (RST) ground shall be measured before and after it has been bonded to the master ground bar (MGB) where it is connected to the building electric service ground. (b) The ground resistance of electronic equipment such as span line repeaters, carrier terminal equipment, concentrators, etc. shall be measured. (c) (d) (e) (2) For electronic equipment, the ground resistance shall not exceed 25 ohms. Where the measured ground resistance exceeds 25 ohms, the borrower shall determine what additional grounding, if any, shall be provided. (3) When ground resistance measurements exceed the ground resistance requirements of paragraphs (e)(1) and (e)(2) of this section, refer to RUS Bulletin 1751F-802, “Electrical Protection Grounding Fundamentals,” for suggested methods of reducing the ground resistance. (f) (g)

official document · source cfr-2024 · id 7:§ 1755.402