Plug & Play hot tub installation

[telectrix]

this bit concerns TNC-S:

Hot Tubs and TN-C-S Supplies The NICEIC Technical Helpline is often asked whether a hot tub installed outdoors may be supplied from a circuit taken from an installation forming part of a TN-C-S system, often referred to as a PME Supply. Neither the Electricity Safety, Quality and Continuity Regulations nor the guidance given in Engineering Recommendation G12/4 – Requirements for the Application of Protective Multiple Earthing to Low Voltage Networks published by the Energy Networks Association places any restrictions in respect of the connection of a hot tub to a PME supply. G12/4 does offer several alternatives in respect of the connection of a swimming pool to a PME supply and it is sometimes suggested, erroneously, that hot tubs should be treated in the same manner as a swimming pool. However, it is clear that hot tubs fall outside of the scope of Section 702 of BS 7671 (see Regulation 702.11). So, unless, as stated previously in this article, a hot tub outdoors is installed within the zones of a swimming pool, only the general rules of that standard are applicable.

 

[Cosy Sparky]

I hope you're prepared to back up such a bold blanket statement...

I can back it up because I am almost the only person who does things correctly, safely, and then applies all the belts and braces - my customers use me because I work on these principles and almost no-one else does.

 

[telectrix]

see my last post. your stance is repudiated by NICEIC. time for some reading methinks.

 

[DPG]

I can back it up because I am almost the only person who does things correctly, safely, and then applies all the belts and braces - my customers use me because I work on these principles and almost no-one else does.

I can back it up because I am almost the only person who does things correctly, safely, and then applies all the belts and braces - my customers use me because I work on these principles and almost no-one else does.

Bit of homework needed.

 

[telectrix]

not to mention that by TT earthing the bugger, you are then relying on the RCD for fault protection unless you can achieve a sub 1 ohm Ra.

 

[Cosy Sparky]

see my last post. your stance is repudiated by NICEIC. time for some reading methinks.

The NICEIC are made up of box ticking morons who are only interested in 5pm each day. They are of little or no use to real life and of no use to the enhancement of the human race.

 

[Cosy Sparky]

not to mention that by TT earthing the bugger, you are then relying on the RCD for fault protection unless you can achieve a sub 1 ohm Ra.

Sub 1 ohm is exactly what I manage to achieve with almost every TT installation - anyone who can't should not be installing TT installations.

 

[westward10]

The mower is 'mobile equipment' and as such should be supplied from a socket suitable for such ie has RCD protection. The hot tub is not mobile & is outside the equipotential zone of the supplying building, so therefore should be treated in exactly the same way as say a remote garage or any other detached building - ie should be provided with its own equipotential zone.

You seem to have very strong opinions but I must point out the term Earthed Equipotential Zone has not been used in BS7671 for a long time.

 

[telectrix]

Sub 1 ohm is exactly what I manage to achieve with almost every TT installation - anyone who can't should not be installing TT installations.

mind your head as you go out the door. close it behind you.

 

[nicebutdim]

Sub 1 ohm is exactly what I manage to achieve with almost every TT installation - anyone who can't should not be installing TT installations.

I'd be very interested to learn how you manage this with almost every TT installation?