Shower Pull Cord Burning Out
Hi
We have replaced this 3 times in 9 years. Is this normal? :mad:
The casing went a bit yellow as though it has been overheating and this time some of the wires look as though they have melted a bit.
This can't be normal surely? :eek:
We do seem to have power surges sometimes as the Sky box goes funny. Is this connected do you think?
We have replaced this 3 times in 9 years. Is this normal? :mad:
The casing went a bit yellow as though it has been overheating and this time some of the wires look as though they have melted a bit.
This can't be normal surely? :eek:
We do seem to have power surges sometimes as the Sky box goes funny. Is this connected do you think?
0
Comments
It won't have anything to do with your "power surges".
The only solution, if there's enough length in the cable, is to cut back to bright shiny (i.e. unaffected) copper and connect to a new switch. However if there's not enough length you'll have to put in a new run of cable - I'd never advise inserting joints into a high current circuit such as one serving a shower.
Is there something special about this further annealing that makes the subsequent connections worse?
It is indeed annealed as part of the production process (i.e. soft drawn) to make it ductile, but the overheating in use anneals it further to a point where its softness is such that its not suitable for the sort of terminations its intended to be used with, which is what has happened in this case. Oxidation caused by heating also plays a part in increasing resistance.
There's quite a good discussion about this in parts of this thread on the IET website.