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Annex 3.1. Values ​​of resistance to direct current of elements of air circuit breakers. Encyclopedia of radio electronics and electrical engineering

Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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Table 17

Notes
1. Limiting values ​​of resistance of one element (discontinuity) of the quenching chamber and separator and one arc-extinguishing device of the module: VVN series circuit breakers - 20 μΩ, VVU, VVB, VVBK, VVD series - 80 μΩ.
2. The resistance of the shunt resistors installed on the same pole of the circuit breaker should not differ more than allowed by the factory instructions.

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