Norms of acceptance tests. Load break switches

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 1 General Rules

Norms of acceptance tests. Load break switches

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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1.8.23. 1. Measurement of insulation resistance of secondary circuits and windings of control electromagnets.

Produced in accordance with 1.8.37.

2. Power frequency overvoltage test:

a) isolation of the switch-disconnector. Produced in accordance with Table 1.8.16.;

b) insulation of secondary circuits and windings of control electromagnets. Produced in accordance with 1.8.37. 3.

3. DC resistance measurement:

a) switch contacts. The resistance of the current-carrying system of the pole and each pair of working contacts is measured. The resistance value must correspond to the manufacturer's data;

b) windings of control electromagnets. The resistance value must match the manufacturer's specifications.

4. Checking the operation of the free release mechanism.

The free release mechanism is checked in operation in accordance with 1.8.19, clause 9.

5. Checking the operation of the drive at low voltage.

Produced in accordance with 1.8.19, clause 10.

6. Testing the load break switch by repeated testing.

Produced in accordance with 1.8.19 p.11.

See other articles Section Rules for the installation of electrical installations (PUE).

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