Cables to run accross concrete floor

sidekick · May 22, 2012

I will have to get tails from meter more than 15m to consumer unit.
Will also gave to either 12m through concrete floor or through a double skin wall to a room with suspended floor for 10m and back 5m through concrete floor. Whats the best way to do and protect this within regs etc.

sidekick · May 30, 2012

Guitarist said:
An swa cable does not need further mechanical protection (as it is already protected). The gland can be terminated onto the CU using a banjo fitting and earth tail (if the CU has the facility to be drilled/knockout).

Whats a banjo fitting and where can i see/buy one

sidekick · May 30, 2012

Des 56 said:
If you are going to sink the swa,then you just as well sink the adaptable box and site the cons unit over it,no joints that way

Yes but large adaptable box for size of gland and 25mm earth won't fit in csu so would have to get it down to 16mm

FatBob · May 30, 2012

sidekick said:
Whats a banjo fitting and where can i see/buy one

Its an earth tag, ask your wholesaler for termination fittings when you purchase the cable

FatBob · May 30, 2012

sidekick said:
With no rcd on this cable does it not need to be 50 or more.

Not for SWA see 522.6.101 (i) & (iv) and 522.6.102

Guitarist · May 30, 2012

sidekick said:
Whats a banjo fitting and where can i see/buy one

I really don't mean to sound rude here, and please don't take offence, but have you ever used swa? It seems crazy to be doing so if you have never been shown how to terminate and earth it.

Knobhead · May 30, 2012

I’ve just re-read the full thread, Sidekick do you consider yourself competent to do this job? You seem to have no idea about terminating the cable. Over the years I’ve had numerous earth faults caused by inexperienced people making off the glands.

Seriously consider what you’re doing, 25mm 3c SWA isn’t going to be cheap to replace if you damage it glanding it off.

sidekick · May 31, 2012

Hi Guitarist and Tony,
Firstly thankyou for explaining the banjo fitting and yes i do know what they are and have used them. Just haven't come accross the term Banjo fitting untill now.
Secondly thankyou for your concern about my competentcy. I have used and terminated swa several times before but not upto 25mm in the circumstances of this job. So please do not be alarmed.
Also experience only comes with doing the job in the first place and rather than plough straight in with my limited experience and knowledge i believe i am do right by this forum to ensure i do the job safely and correctly the first time.

Guitarist · May 31, 2012

I agree that experience comes with doing a job, but normally the first time is under supervision.
As I said, I didn't mean to insult you, I was just concerned that you were taking on something which you weren't sure about. Glad you know what to do though.
This forum is indeed an excellent resource for new and experienced electricians alike.

sidekick · Jun 1, 2012

Guitarist said:
I agree that experience comes with doing a job, but normally the first time is under supervision.
As I said, I didn't mean to insult you, I was just concerned that you were taking on something which you weren't sure about. Glad you know what to do though.
This forum is indeed an excellent resource for new and experienced electricians alike.

Thanks Guitarist. No offence taken.