Am I right?

[adam1984]

Hi All,

New to the forum as a poster but regully browse.

I am currently into my 3rd year at college studying my C&G 2330 Level 3.

My friend called me to say that he has blown several bulbs in his hallway light this week. I went round tonight to have a look and hopefully fix it. I tested for voltage on my multi meter and the cable in connector blocks registered 230v and 0 when switched off at the light switch.

The wiring from the connector blocks to the metal light fitting were extremely brittle and in several places on all wires (live, switch live,CPC) there was exposed copper.

My friends house is private rented and they have been in there for approx 2 months. I thought it best to take the light off so they can show the landlord / agency and I am yet to replace it - which i have offered to do - or the landlord / agency can arrange for a more qualified electrician to replace.

My thinking is that because of the very brittle sheath and exposed copper that is what was causing the bulbs to blow.

Am I correct?

Please note that the MCB never tripped each time the bulbs blew. I wish now that I took some photos but I didn't so hopefully i have described it well enough.

Adam

 

[Marvo]

Most likely cause of lamps blowing is a poor connection. If the insulation was retreating away from the connection or it was brittle then that is most likely the problem area.

If you know how to safely isolate the circuit I'm sure you can trim off the damaged ends of the wires and reconnect using Wagos or similar. The wiring in the fitting ought to have hi-temp sleeving over it so put some on if necessary.