Gas filled in whole installation of GIS substations at 3 kg / sq. cm

Q.  At what pressure is the SF6 gas filled in the whole installation of GIS substations?
- Published on 30 Sep 15

a. 3 kg / cm2
b. 5 kg / cm2
c. 3 kg / m2
d. 5 kg / m2

ANSWER: 3 kg / cm2

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