67. In a short circuit test on a circuit breaker, the following readings were obtained on single frequency transient : Time to reach the peak restriking voltage = 50 μ sec Peak restriking voltage = 100 kV The average RRRV is (1) 2× 106 kV/sec (ii) 4 × 106 kV/sec (iii) 5.6 × 106 kV/sec (iv) none of above

67. In a short circuit test on a circuit breaker, the following readings were obtained on single frequency transient : Time to reach the peak restriking voltage = 50 μ sec Peak restriking voltage = 100 kV The average RRRV is (1) 2× 106 kV/sec (ii) 4 × 106 kV/sec (iii) 5.6 × 106 kV/sec (iv) none of above

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter25: Television, Telephone, And Low-voltage Signal Systems

Section25.2: Telephone System

Problem 2R: At what height are the telephone outlets in this residence mounted? Give measurement to center....

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