Home |
Search |
Today's Posts |
|
UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Had a single storey rear extension done a few months back and this obviously
included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? |
#2
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Grumps wrote: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? Yes See On-Site Guide para 3.6.1 (iii) & (iv) or regs sect 471-08-04 & -05 HTH |
#3
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
jim_in_sussex wrote:
Grumps wrote: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? Yes See On-Site Guide para 3.6.1 (iii) & (iv) or regs sect 471-08-04 & -05 HTH Ta. I just read some of PratP myself. Can the RCD protection be provided locally (i.e. by replacing the sockets with RCD ones), or MUST it be done by modifying the fuse board etc? |
#4
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
The message
from "Grumps" contains these words: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? Yes, but if your existing CU already has RCD protection on the sockets this is considered OK. -- Skipweasel Pay no attention to that man behind the curtain. |
#5
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Guy King wrote:
The message from "Grumps" contains these words: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? Yes, but if your existing CU already has RCD protection on the sockets this is considered OK. Thanks. It hasn't So, can I just replace some sockets (there are 4 max that could realistically be used to supply outside power - and only one would ever be used) with ones with built-in RCD protection? I've read the regs now, but it just says 'you need RCD', it doesn't say whether the RCD should be at the CU. |
#6
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
On Tue, 15 Aug 2006 11:57:15 +0100 someone who may be "Grumps"
wrote this:- Can the RCD protection be provided locally (i.e. by replacing the sockets with RCD ones) Yes, provided the RCD sockets have suitable characteristics (I imagine at he ones that are sold do have suitable characteristics). This is in many ways better than RCD(s) at the consumer unit. -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#7
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
David Hansen wrote:
On Tue, 15 Aug 2006 11:57:15 +0100 someone who may be "Grumps" wrote this:- Can the RCD protection be provided locally (i.e. by replacing the sockets with RCD ones) Yes, provided the RCD sockets have suitable characteristics (I imagine at he ones that are sold do have suitable characteristics). This is in many ways better than RCD(s) at the consumer unit. Ta. That's the answer I like. Available units (Screwfix ranging from £20 to £50) all have 30mA and at least one is spec'd at 30ms (regs say 40ms). |
#8
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Had a single storey rear extension done a few months back and this
obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? At a push, you could install one waterproof RCD socket outside and then you can realistically claim that indoor sockets wouldn't be used for outdoor appliances. However, my personal opinion is that it is much safer to protect all sockets, even those not realistically used for outdoor appliances. I would except only sockets intended for fixed appliances such as fridges and freezers. This is because the RCD will provide secondary protection against electric shock and fire. Christian. |
#9
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Christian McArdle wrote:
Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? At a push, you could install one waterproof RCD socket outside and then you can realistically claim that indoor sockets wouldn't be used for outdoor appliances. However, my personal opinion is that it is much safer to protect all sockets, even those not realistically used for outdoor appliances. I would except only sockets intended for fixed appliances such as fridges and freezers. This is because the RCD will provide secondary protection against electric shock and fire. Thanks. As the F-F is on the same ring as the extension sockets, it would seem sensible to replace the sockets with RCD types. This'd be cheaper than getting the sparks in to modify the CU to include RCD I would imagine. |
#10
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
I suppose realistically all sockets have the potential to be used for
outside use. Our bedroom sockets power the xmas lights outside on the guttering. All downstairs sockets have been used for extension cables, to power the car battery charger, electric drill etc etc. Why not use one of pluginable RCD's, so you can use it whereever you go. On Tue, 15 Aug 2006 11:41:14 +0100, "Grumps" wrote: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? |
#11
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
pretty-polly wrote:
On Tue, 15 Aug 2006 11:41:14 +0100, "Grumps" wrote: Had a single storey rear extension done a few months back and this obviously included an extension to the mains ring. Is it true that wiring regs require any socket that can be potentially used outside (extension lead) to be RCD protected? I suppose realistically all sockets have the potential to be used for outside use. Our bedroom sockets power the xmas lights outside on the guttering. All downstairs sockets have been used for extension cables, to power the car battery charger, electric drill etc etc. Why not use one of pluginable RCD's, so you can use it whereever you go. I don't think those plugginable RCDs will pass the regs! The man at NAPIT told me, that in our situation, we need TWO separate sockets with RCD, OR the whole ring RCD protected. |
#12
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
In article ,
"Grumps" writes: Ta. That's the answer I like. Available units (Screwfix ranging from £20 to £50) all have 30mA and at least one is spec'd at 30ms (regs say 40ms). Watch out to ensure existing back box is deep enough. -- Andrew Gabriel |
#13
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Andrew Gabriel wrote:
In article , "Grumps" writes: Ta. That's the answer I like. Available units (Screwfix ranging from £20 to £50) all have 30mA and at least one is spec'd at 30ms (regs say 40ms). Watch out to ensure existing back box is deep enough. Thanks for the warning. The cheaper Volex one from Screwfix needs 25mm. Not sure about the MK one. There's one on TLC that also needs 25mm. I guess they'll all be the same; a bit stoopid if a manufacturer made a deeper one. |
#14
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
Guy King wrote: Yes, but if your existing CU already has RCD protection on the sockets this is considered OK. OK by the letter of the regs, but far from ideal. A 30mA on a socket is better protection than a 100mA in a CU. It's also less likely to trip and take out the freezer. |
#15
Posted to uk.d-i-y
|
|||
|
|||
Electrical wiring Q.
|
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
books on electrical wiring | Home Repair | |||
Electrical Wiring Manyuals | Home Repair | |||
Old electrical wiring to outbuildings | Home Repair | |||
Wiring "new" electrical circuit | Home Repair | |||
Electrical wiring inspector? | UK diy |