1.5mm SWA, Acceptable or bad practice ?

[pevvers]

now MI is a totally different ball game, op was for opinions and thats what he got

No **** that is what he got!!

So how comes MI is a different ball game, but SWA with it's higher CCC is not? Surely the same rules apply?

1.5mm MI (bare and exposed to touch, as it would be in this situation) = CCC of 23A light duty and 25A heavy duty clipped direct and 25A light duty and 26A heavy duty on tray.

1.5mm SWA 70 deg c (thermoplastic)= 21A clipped direct and 22A on tray.

1.5mm SWA 90 deg c (thermosetting)= 27A clipped direct and 29A on tray.

Most of the time nowadays I find that SWA is thermosetting insulation, and so the 27A CCC would be the one to look at. Which is better than even the heavy duty MI by 2A... So, with respect, how is MI a different ball game?



P.S. I was being quiet Flukey, but you just wouldn't let it lie!

 

[andyb]

now MI is a totally different ball game, op was for opinions and thats what he got

The op was not asking for opinions,

It was asking for the current carrying capacity of 1.5 3 core swa, this is in the brb so no opinion needed.

Also is it acceptable to run a radial in 1.5 swa to 2 x sockets on a 16 amp mcb, again verifiable in the brb so no opinion need.

What you are doing flukey is saying how you would do it, which was definatly not the op.

 

[flukey]

The op was not asking for opinions,

It was asking for the current carrying capacity of 1.5 3 core swa, this is in the brb so no opinion needed.

Also is it acceptable to run a radial in 1.5 swa to 2 x sockets on a 16 amp mcb, again verifiable in the brb so no opinion need.

What you are doing flukey is saying how you would do it, which was definatly not the op.

read my reply, acceptable but not good pactice my opinion

No **** that is what he got!!

So how comes MI is a different ball game, but SWA with it's higher CCC is not? Surely the same rules apply?

1.5mm MI (bare and exposed to touch, as it would be in this situation) = CCC of 23A light duty and 25A heavy duty clipped direct and 25A light duty and 26A heavy duty on tray.

1.5mm SWA 70 deg c (thermoplastic)= 21A clipped direct and 22A on tray.

1.5mm SWA 90 deg c (thermosetting)= 27A clipped direct and 29A on tray.

Most of the time nowadays I find that SWA is thermosetting insulation, and so the 27A CCC would be the one to look at. Which is better than even the heavy duty MI by 2A... So, with respect, how is MI a different ball game?



P.S. I was being quiet Flukey, but you just wouldn't let it lie!

im not playing pevvers, you can read MY opinion

 

[pevvers]

But why is MI a different ball game?

I'm not playing either, just curious how it's acceptable for a cable with a lower CCC to be okay to use, but one with a higher one isn't acceptable??

 

[flukey]

But why is MI a different ball game?

1.5 MI is a direct replacement for 2.5 t/e in nearly all situations, but then you would know that.

you have my opinion and no matter how hard you try you wont change it because thats the way I do it

i have never said its not acceptable, read my posts, just not what i would do

 

[pevvers]

Ah, but it has been fun, has it not?

Just realised you only live about 3 minutes drive from me, we should go for a beer and discuss it further!!

 

[Mac]

Ah, but it has been fun, has it not?

Just realised you only live about 3 minutes drive from me, we should go for a beer and discuss it further!!

Thank God for that

 

[flukey]

Ah, but it has been fun, has it not?

Just realised you only live about 3 minutes drive from me, we should go for a beer and discuss it further!!

beer sounds good, discussing this further doesnt

where are you based then

 

[pevvers]

I was only joking about the futher discussions....

I'm in Broomfields in Pitsea, but I won't be stealing any business from you as I'm not on the tools anymore!

 

[Modernelectric]

but would that be 4 or a 5 percent beverage? 4 would definately seem like bad practice to me. answers on a postcard

 

[pevvers]

Oh, the higher the percentage the better in my eyes!! Gotta be at least 5...

 

[flukey]

I was only joking about the futher discussions....

I'm in Broomfields in Pitsea, but I won't be stealing any business from you as I'm not on the tools anymore!

just down the road from me then, im in pitsea too, small world

im open to any further discussions, just dont question my methods as theyre mine not yours

definitely 5 per cent beer for me too

 

[Ralph Bradder]

I know it depends on its inststallation method but what is the max current carrying capacity of 1.5mm swa 3 core?

If im looking at the correct table 4D4A it says 18a clipped direct.

But then this manufactures spec says 32a. (page 3) http://www.alertelectrical.com/upload/pdf/329armoured.pdf


I want to know if its acceptable to run a radial to 2 x outdoor sockets using 1.5mm SWA on a 16a mcb

I would use 2.5 for 2 sockets radial

 

[Deleted account]

I’ve done it again. In agreeing and liking a thread that is 12 years old. I wasn’t a member 12 years ago.

 

[Timbo]

You got me going there, Pete.