Common use of ELECTRICAL DESIGN DATA Clause in Contracts

ELECTRICAL DESIGN DATA. 2.2.1 System particulars Nominal system voltage between phases kV 33 11 0.415 Highest system voltage kV 36 12 0.440 System fault level kA 31.5 25 50* Earthing system Resistance earthed Solidly earthed Solidly earthed System frequency Hz 50 50 50 2.2.2 Equipment withstand voltage i. Outdoor bushings, insulators and pole mounted transformers Impulse withstand voltage (1.2/50µs wave) peak kV 250 95 - Power frequency withstand voltage kV 95 38 -

ELECTRICAL DESIGN DATA. 2.2.1 System particulars Nominal system voltage between phases NOMINAL SYSTEM VOLTAGE BETWEEN PHASES kV 33 11 0.415 Highest system voltage HIGHEST SYSTEM VOLTAGE kV 36 12 0.440 System fault level SYSTEM FAULT LEVEL kA 31.5 25 50* Earthing system EARTHING SYSTEM Resistance earthed Solidly earthed Solidly earthed System frequency SYSTEM FREQUENCY Hz 50 50 50 2.2.2 Equipment withstand voltage i. I. Outdoor bushings, insulators and pole mounted transformers Impulse withstand voltage (1.2/50µs wave) peak kV 250 95 - Power frequency withstand voltage kV 95 38 -38