Does a sunbed require RCD?

[Stevesplatto]

Hi
I've been asked to install a power supply for a sun bed in a salon:
Sunbed is 60 x 225w lamps = 13.5K
Divide 230v = 59amps
Table 4D2A:
10mm T&E 63amp capacity clipped direct.
I'm installing a dedicated CU with a 63a MCB and isolator fed via a henley block on the meter tails for the sunbed to avoid the basement studio being plunged into darkness!
So far so good.
I haven't got paperwork for the sunbed but I understand that the ballasts typically have an earth leakage current of 75ma which increases over time. So 30ma RCDs can't be used. 100ma are not recommended for shock protection.

Am I required to protect this circuit with an RCD?

Thanks
Steve

 

[TJ Anderson]

Your installation method does not require it, can you not google the sunbed model to get manufacturer info?

 

[telectrix]

IMO, an RCD is not required as long as the cable is not buried in a wall <50mm deep. however, i'd be measuring Ze and calculating Zs and PEFC to ensure that the cpc in 10mm T/E was adequate.

 

[Stevesplatto]

Thanks for the quick responses, much appreciated.
The manufacturer, Sunquest's (Aurora) website has very basic information unfortunately.
Client bought the most powerful model before taking advice on the power requirements of course. Luckily only a 3 metre run to the board.
2 guys coming down from Leicester crack of sparrow f**t to install expecting everything to be ready...
Regards
Steve

 

[Guest77]

Does a sunbed require RCD?



What does the manufacturer say about it?

 

[telectrix]

開溜所有，它是在中國，所以草皮吧。

 

[HandySparks]

At 13.5kW, I hope they've got good ventilation. Otherwise the clients are going to cook.

 

[GMES]

At 13.5kW, I hope they've got good ventilation. Otherwise the clients are going to cook.

Thought that was the idea behind them!!

 

[stevethesparks]

You could tuck a bag of frozen curry in your knickerline and have a ready meal when you get out.

 

[Stevesplatto]

All installed now.
Blokes who installed it both had tanning parlours in Leicester. They reckoned just a couple of vents needed. No fan. Cabinets are used 6 mins at a time.
See how it goes, not the easiest place to install a ventilation duct.
Cheers Steve

 

[Leesparkykent]

All installed now.
Blokes who installed it both had tanning parlours in Leicester. They reckoned just a couple of vents needed. No fan. Cabinets are used 6 mins at a time.
See how it goes, not the easiest place to install a ventilation duct.
Cheers Steve

Qualified for the job then lol. Did you end up sticking it on a RCD?

 

[Stevesplatto]

Qualified for the job then lol. Did you end up sticking it on a RCD?

No, 3m run in free air (method c). ballast leaks up to 75ma to earth by design so 30ma rcd would trip. Considered 100ma RCD but not needed.
Steve

 

[ruston]

Thought that was the idea behind them!!

Aye but not medium to well done lol.
The older parlours used to stink because they crammed as many beds in as the could get !Ugh.

 

[driverman]

Out of interest then, if circuit had already been installed and buried in wall etc. What would happen then?

 

[Simlec]

No, 3m run in free air (method c). ballast leaks up to 75ma to earth by design so 30ma rcd would trip. Considered 100ma RCD but not needed.
Steve

So did you take any extra preconditions due to this?

 

[Simlec]

Out of interest then, if circuit had already been installed and buried in wall etc. What would happen then?

Get a unit with no leakage or surface wiring.

 

[driverman]

Get a unit with no leakage or surface wirinGg
What I meant was......if same Blokes turned up with same product, what would they then do?

 

[Simlec]

Get a unit with no leakage or surface wirinGg
What I meant was......if same Blokes turned up with same product, what would they then do?

God only knows what they would do, probably just connect, turn on & go home with cash in back pocket.