electrics_new
Well-known member
I came across a PIR sensor today. Looks pretty old but customers says it works and disconnected lights on front of property due to having the property painted.
They would now like new lights putting into the existing wiring.
x3 lights
Point A: twin and earth (easy this is the last point in the circuit)
Point B x 2 twin and earth easy power comes in and power goes out)
Point C: OK this is the strange one. Twin and earth which supply point B. Then x2 neutrals and one live. However, i get 230v between the neutrals. The light that needs to be fitted is a simple L, N and Earth connection. What do I with two neutrals showing 230v across them and a live showing zero volts. I understand the PIR sensor would be activated and provide live - how do I wire up the existing circuit ????
PIR sensor is located out of reach............... I can go back when it's dark take a reading.......... but any ideas ????
Thanks
They would now like new lights putting into the existing wiring.
x3 lights
Point A: twin and earth (easy this is the last point in the circuit)
Point B x 2 twin and earth easy power comes in and power goes out)
Point C: OK this is the strange one. Twin and earth which supply point B. Then x2 neutrals and one live. However, i get 230v between the neutrals. The light that needs to be fitted is a simple L, N and Earth connection. What do I with two neutrals showing 230v across them and a live showing zero volts. I understand the PIR sensor would be activated and provide live - how do I wire up the existing circuit ????
PIR sensor is located out of reach............... I can go back when it's dark take a reading.......... but any ideas ????
Thanks