Pipe clamps and swa cable

[Spark123]

Am I the only person who has never come across single core swa?

 

[ColJack]

you're not generally going to come across them in the domestic field.. but when you're installing things like the mains for a market hall and multi storey car park then you'll end up pulling a few in..

 

[ban-all-sheds]

Am I the only person who has never come across single core swa?

 

[Click-Sure]

Sure nobody is confusing SWA with AWA here?

 

[ban-all-sheds]

Or TWA?

 

[holmslaw]

..

 

[ColJack]

yes..
shall is another word for must..
and the "normally be" bit refers to the exception for cables over 50mm which is listed below..

 

[holmslaw]

..

 

[ColJack]

they are both modal verbs that indicate a lack of choice..

"must be" and "shall be" mean the same thing..

the "normally" bit is defining that there is a specific exception for it..

"must normally be" and "shall normally be" are the same thing..

 

[Zambezi]

I am going to get my wooden spoon out in a minute

 

[Spark123]

I have heard single core SWA being used for DC applications, however for AC surely you'd end up with eddy currents flowing around any sort of magnetic armour, made worse if there is a closed loop.

 

[Click-Sure]

Which is why you'd use AWA...

 

[Spark123]

you're not generally going to come across them in the domestic field.. but when you're installing things like the mains for a market hall and multi storey car park then you'll end up pulling a few in..

I don't do domestics
Heavy insustrial and commercial mainly

 

[ColJack]

I would have thought so, but then why 523.10?

it does say "metallic sheath and / or non-magnetic armour.. " though.. so does it even apply to SWA?

( ok so i missed that first part when reading it.. )

 

[Spark123]

Which is why you'd use AWA...

Never used that either
All our armoured cables seem to be multicore SWA.