Hello Everyone,
I am from India. Things were good [seemed to be good] with temporary electric connection [single phase, 230v] to our new house. Now when we are organizing electrical wiring, dividing phases, installing ELCB, the problem started occuring.
Now the electricity connection is of 3 Phase, 230v each phase. We have a basement, ground and first floor. All the 3 phases goes to all 3 units i.e.; basement, GF & FF with each unit having one MCB box. A panel outside the building have terminal box, ELCB [4 Pole] and Main Switch [4 Pole] here the live wire connects.
Two UPS units one each [single phase] for GF and FF is in the basement, so the current passes through these before reaching some selected MCBs to power lights, fans & refrigerators which we wanted to be working even when there is power outage.
The problem:
Now when we installed ELCB it started tripping. We checked each neutral and found one faulty at MCB box on GF which is presently disconnected to prevent tripping. Another problem is ELCB still gets tripped when some switches are turned on and this phase wire is connected to a single MCB [there are multiple MCBs in each box]. We have tried to connect the phase wire externally to check if it works but the ELCB still trips.
After trying different things the issue is still unresolved. Tracing the cut in wire physically is not possible as the wire runs between false ceiling and RCC roof and also within pvc pipe in roof and walls. There may be chance that false ceiling worker might have pierced the pvc pipe within the roof and crossed the screw through it which might have stripped the wire and now is leaking the current and hence tripping the ELCB.
Can anyone suggest some solution? Is there anyway to check [with multi-meter] if there is any current leakage due to cut or touching of any wire in the building.
Sorry for the long post, but I wanted to put max. info.
Thanks.
I am from India. Things were good [seemed to be good] with temporary electric connection [single phase, 230v] to our new house. Now when we are organizing electrical wiring, dividing phases, installing ELCB, the problem started occuring.
Now the electricity connection is of 3 Phase, 230v each phase. We have a basement, ground and first floor. All the 3 phases goes to all 3 units i.e.; basement, GF & FF with each unit having one MCB box. A panel outside the building have terminal box, ELCB [4 Pole] and Main Switch [4 Pole] here the live wire connects.
Two UPS units one each [single phase] for GF and FF is in the basement, so the current passes through these before reaching some selected MCBs to power lights, fans & refrigerators which we wanted to be working even when there is power outage.
The problem:
Now when we installed ELCB it started tripping. We checked each neutral and found one faulty at MCB box on GF which is presently disconnected to prevent tripping. Another problem is ELCB still gets tripped when some switches are turned on and this phase wire is connected to a single MCB [there are multiple MCBs in each box]. We have tried to connect the phase wire externally to check if it works but the ELCB still trips.
After trying different things the issue is still unresolved. Tracing the cut in wire physically is not possible as the wire runs between false ceiling and RCC roof and also within pvc pipe in roof and walls. There may be chance that false ceiling worker might have pierced the pvc pipe within the roof and crossed the screw through it which might have stripped the wire and now is leaking the current and hence tripping the ELCB.
Can anyone suggest some solution? Is there anyway to check [with multi-meter] if there is any current leakage due to cut or touching of any wire in the building.
Sorry for the long post, but I wanted to put max. info.
Thanks.
