Distance from end face breaker insulation plate.ounting and Connection
Moulded Case Circuit Breakers Insulation distance from the line side
The insulation distance between the breaker and earthed metal parts and insulators shown the table the next page must maintained prevent arcing faults occurring due conductive ionised gas.
In tin e
S ire
2
Mounting and Connection
In Exposed e
In l
L e
In tio e
z m
B
L
B
T l)
In (In tio te
TA
A B
4
B2
t
t
A B2
t
A
I
t
A e
A D
F tio w
F tio r
R tio -in
A Distance from lower breaker exposed live part upper breaker term inal (front connection) distance from lower breaker end face upper breaker (rear connection). ension insulation over exposed conductors. Gap between breakers. sure install the interpole barriers supplied with the breaker.
. Distance from side breaker side plate (earthed metal). Distance from end face breaker top plate. addition, completely cover exposed conductors, their roots the breaker below the height protected interpole barriers, the line side the reaker ing ins ulation tube obMaipe, rder provide pos itive protection against short circuit ground fault due metal chipping, surge voltage, dust particles salt
