Question #370
The safe distance between a mobile elevating work platform and the outermost conductors of power lines with a rated voltage from 30 to 110 kV is:
Bezpieczna odległość podestu od skrajnych przewodów linii elektroenergetycznych o napięciu znamionowym od 30 do 110 kV wynosi:
a
3 m
3m
b
15 m
15m
Correct answer
c
10 m
10m
d
30 m
30m
Why?
For voltages above 30 kV up to and including 110 kV, at least 15 m horizontally from the outermost conductor (skrajny przewód) is required. The 10 m distance applies above 15 kV up to and including 30 kV. The question states the lower boundary imprecisely: exactly 30 kV still requires 10 m.