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showers and rcds


 
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chelsea83

from United Kingdom

Joined: 02 Apr 2008
Posts: 4
Location: Surrey,
United Kingdom

PostPosted: Wed Apr 02, 2008 9:12 pm Reply with quote

hello need to inquire about showers. are you supposed to have a rcd when installing an electric shower or is the 40A mcb suffisent protection in the event of a fault?
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streetlighter

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PostPosted: Wed Apr 02, 2008 9:19 pm Reply with quote

Under the 16th edition an RCD is not required but recommeded due to electricity near water. But in the new 17th all circuits in a bathroom must be protected by one or more RCD/RCBOs.
Myself i would not install a shower without a 30mA RCD in the circuit.
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electrospark

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Posts: 187
Location: London,
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PostPosted: Wed Apr 02, 2008 9:21 pm Reply with quote

As far as i am aware and i know i will be corrected if wrong... but under the 16th edition there is no requirement to install on a RCD. Although it is good practice to install them on one. (As I do)

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electrospark

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PostPosted: Wed Apr 02, 2008 9:21 pm Reply with quote

got there b4 me streetlighter icon_evil.gif
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chelsea83

from United Kingdom

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Location: Surrey,
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PostPosted: Wed Apr 02, 2008 9:21 pm Reply with quote

what if there wasn't enough room in the dist board to fit an rcd would it be a major issue?
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electrospark

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Location: London,
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PostPosted: Wed Apr 02, 2008 9:23 pm Reply with quote

Its up to u as there is no regs to suggest to. But I would use one...
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electrospark

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PostPosted: Wed Apr 02, 2008 9:24 pm Reply with quote

Can u fit an RCBO what board do u have?
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chelsea83

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Location: Surrey,
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PostPosted: Wed Apr 02, 2008 9:26 pm Reply with quote

theres just enough room to fit the new 40A mcb. its a crabtree sb6000
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streetlighter

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PostPosted: Wed Apr 02, 2008 9:28 pm Reply with quote

Do crabtree still supply BS3871 sb6000 MCBs for those units ? Mind i suppose the fuse company would have them.
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daytona

from United Kingdom

Joined: 02 Nov 2007
Posts: 697
Location: United Kingdom

PostPosted: Wed Apr 02, 2008 9:32 pm Reply with quote

as said before,you dont need rcd protection for the shower if the install is under the 16th edition.bs7671 is only a minimum standard though.you wont get a spark to say not to use an rcd with this in mind.

its up to you(or your spark)but i wouldnt.


Last edited by daytona on Wed Apr 02, 2008 9:33 pm, edited 1 time in total
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GaryMo

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PostPosted: Wed Apr 02, 2008 9:33 pm Reply with quote

External RCD in an enclosure?

It's normally manufacturers recommendation to fit an RCD to a shower circuit (16th) and not that of the wiring regulations.
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electrospark

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Posts: 187
Location: London,
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PostPosted: Wed Apr 02, 2008 9:33 pm Reply with quote

No idea, they may do..
Can you fit a small 2 way board to the side with RCD. More work but worth it. Its up to you. I would, but like we said there isn't any requirement. So do it before july if u don't want to fit one..
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chelsea83

from United Kingdom

Joined: 02 Apr 2008
Posts: 4
Location: Surrey,
United Kingdom

PostPosted: Wed Apr 02, 2008 9:44 pm Reply with quote

thanks for the info, might try the separate enclosure with rcd
cheers
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