Non boaty electrics

[richardabeattie]

I have to insulate a joint in a mains cable in a very inaccessible place and it will then be plastered over. Could I get away with encasing it in a big blob of silicone?

 

[sailorman]

what Max amp is it rated @

 

[saltwater_gypsy]

Did you own my last house!!!!
Nasty blobby connections all over the place.
Can't you shorten one piece to an accessible place and run some new cable from there???
Otherwise sweet dreams----Blobby!

 

[exfinnsailor]

Run a new cable and do the job properly .. Any cable under plaster should be covered with plastic capping .. If you do not seal the joint tightly you will get water in from the plaster .. As its impossible to make a water tight join then .. You will need two junction boxes in accessible places with a new length of cable .. /forums/images/graemlins/frown.gif .. Sorry but you are asking for trouble otherwise ..

 

[billskip]

I think is against all the regs now for you to touch it,but I am sure lemain will be along put everybody in order.

I wonder if it is against the regs to touch your own house wireing, is it against the regs to do your own boat/caravan? /forums/images/graemlins/confused.gif

 

[richardabeattie]

It's the feed to a 13 amp socket. If silicone is waterproof and non conducting then why not?

 

[sailorman]

can you put a JB under the floor with a trap

 

[stephenh]

Use crimps for the joint - any screw type fitting is a no-no - and then wrap with self amalgamating tape or better still use heat shrink or even both.

This will obey the spirit of the regs. if not the letter.

You should then really have the cable tested with a mega, perhaps that is perfection....... and who is perfect ????

 

[William_H]

Some silicons give off a strong acid vapour while curing which can corrode copper. The offenders smell strongly of a pungent acid while the acceptable types do not smell.
Yes it is an offence to tamper with household wiring here unless you hold an appropriate licence as I am sure it is in the UK. Twelve volt wiring in boats and cars is not dangerous so is OK to fiddle with. olewill

 

[billskip]

"Twelve volt wiring in boats and cars is not dangerous so is OK to fiddle with. "olewill


I was refering to boats and caravans with inverters or genny giving 240v

is it an offence to install say a 240v ring main from a genny on your boat if you dont have a licence/qualification?