What sealant to use around L, N and E?

[reb78]

The electricians have cut the outer cable insulation too short for my liking on our electric shower. The cable has to come through the wall straight through an area where any water that splashes on top of the shower can drain due to the design of the unit (bit silly but that's how it has to run). Water can drain past it fine and cant reach the terminals but where they have cut the outer insulation on the horizontal wire, I think water could track along and get inside the outer white sheath. I am using Dowsil 785 to seal other bits - can I safely seal the where the outer wire sheath is cut with this - so the sealant will be touching the red and black insulation on the L and N and may come into contact with the copper of the Earth. Its this stuff - https://www.toolstation.com/dowsil-785n-neutral-sealant/p34025 and says Neutral Cure SIlicone, so I think that means it is not an acetooxy cure and should be ok?? If not, what would be safe to use.

Hope that makes sense. I would have taken a photo but my stupid iphone battery lasts about ten minutes between charges (ok that's an exaggeration...)

Thanks in advance.

 

[brightspark]

standard silicone is ok for sealing the cable not a problem its a good insulator and heatproof if u have ever noticed they seal the ends of heating elements with a blob of it it then push a ceramic bead over the end to seal it

 

[Justme]

Red and black?

How long ago did they install it?

 

[brightspark]

Red and black?

How long ago did they install it?

last week old stock and not registered

 

[reb78]

Haha. It was an old cable rerouted for a new task.

Thanks. So this 735N wont dissolve the insulation and earth!?! I shall seal it up with that. Last thing I want is the white outer filling up with water by capillary action!!

 

[reb78]

As an aside, when the colours changed my dad bought up half the world stock of red and black so he could carry on doing his own stuff undetected!!

 

[brightspark]

As an aside, when the colours changed my dad bought up half the world stock of red and black so he could carry on doing his own stuff undetected!!

they actualy brought the harmonized colors out 2 years before part p was introduced

 

[reb78]

So all the brown and blue was done two years before part P?!

 

[brightspark]

yep

 

[Turbo]

The earth shouldn't be bare copper, the spark should have fitted some yellow/green sleeving to any bare earth wire stripped from the outer sheath.

Neither should you be able to see the red or black wire at all, should always be 2 layers of insulation between the live cables & the outside world, either by the outer cable insulation or some conduit/trunking!

Sounds like you employed some cowboys!

 

[reb78]

The earth shouldn't be bare copper, the spark should have fitted some yellow/green sleeving to any bare earth wire stripped from the outer sheath.

Neither should you be able to see the red or black wire at all, should always be 2 layers of insulation between the live cables & the outside world, either by the outer cable insulation or some conduit/trunking!

Well, you have to cut it somewhere or you won't get wires into the junction block? I just think they have cut it too short and given no thought to where splashed water may trickle.

The earth sleeve is there but its not like its sealed where it pushes tight between the L&N in the cable so some sealant may touch there.

Sounds like you employed some cowboys!

What can I do? Tried to give a young lad a chance. It was a mistake. Fix the issues and dont use him again is the plan. I wish some of the chaps on here were closer.

 

[dobbslc]

Well, you have to cut it somewhere or you won't get wires into the junction block?

That's the point though, the junction block (connector block?) And inner cores must be covered by an enclosure.
This is not good,


This is,

I am a Wago fanboy!

 

[reb78]

I took a photo. This is all covered when the front is on. I cant see an alternative way of doing it but would have tried to leave the white outer longer and pointing up. I have sealed it since taking the pic. I just didn't want some sort of capillary action taking water into the white outer sheath. Probably worrying about nothing here...

 

[reb78]

I too have sonce discovered Wago. Very easy to work with and do a neat job!

 

[Chippie]

I s'pose if its a worry for you, you could pull the cable back to somewhere readily accessible, terminate into a junction box, come out of the jb, back into the shower unit with a new length of cable with what you deem to be adequately insulated.....you could even sleeve the bare Earth conductor before sealing it all up with some sealant...

 

[dobbslc]

I see what you mean now, it's the cores inside the shower cover!
That's ok as it counts as an enclosure although it's only just covered. Usual crappy electric shower! I don't know how they are classed as good to put in zone 1 in a bathroom but they're all the same!

 

[reb78]

I see what you mean now, it's the cores inside the shower cover!
That's ok as it counts as an enclosure although it's only just covered. Usual crappy electric shower! I don't know how they are classed as good to put in zone 1 in a bathroom but they're all the same!

The more i look at them, the more i agree!

 

[MetalMonkey]

I see what you mean now, it's the cores inside the shower cover!
That's ok as it counts as an enclosure although it's only just covered. Usual crappy electric shower! I don't know how they are classed as good to put in zone 1 in a bathroom but they're all the same!

I know it is irrational - but the whole concept of them just seems wrong to me.
Confidence not inspired when you see the build quality of most of them. It kinda makes you want to only operate it with insulated pliers and welly boots. Perhaps that's just me.

 

[reb78]

I know it is irrational - but the whole concept of them just seems wrong to me.
Confidence not inspired when you see the build quality of most of them. It kinda makes you want to only operate it with insulated pliers and welly boots. Perhaps that's just me.

What happens when your boots fill up?!

 

[MetalMonkey]

What happens when your boots fill up?!

That's what the sealant is for. Keep up!