Question #475
The main switch should not disconnect the circuits supplying:
Łącznik główny nie powinien rozłączać obwodów:
a
The travel motors
zasilania silników jazdy
b
The overhead crane controls
sterowania suwnicy
c
The overhead crane
zasilania suwnicy
d
The overhead crane lighting
oświetlenia suwnicy
Correct answer
Why?
The main switch (łącznik główny) should leave the crane lighting available when the crane mechanisms are switched off. This maintains visibility around the stopped equipment. Switching off the mechanisms is not the same as electrically isolating every circuit.