while pushing the calling bell switch, the total circuit trips.
reason for this type of fault
1, different neutral
this type of reason occurs in segmented, RCCB / ELCB devices fixed type of DB's.
we have to give the same neutral connection. for example we are giving the red phase is giving to the bell switch we have to give same red phase neutral.
incase giving different neutral, definitely it will going to short circuit.
2, induction
this type of reason occurs in all types of DB,s. it's not depend upon the DB. incase we laying more wires through the pipe over the limit, induction will formed and it ll make phase to phase short circuit. so the MCBs going to trip condition.
for more details
ask questions in commend box.
thankyou
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