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Adding extra circuit to old wiring (Read 6172 times)
londonman
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Adding extra circuit to old wiring
Oct 7th, 2009, 3:13pm
 
The wiring in my elderly mothers' house is equally as elderly but at least has red/black T&E and not old rubber sheathed stuff. The CU is an old fused unit. She needs a power socket by the telephone socket to feed her CareAlarm unit. The best option that I can see is for an electician to simply (?) add a radial circuit from the CU to a fixed 13A socket mounted in the under-stairs cupboard where the CU is located.

Then her oddjob man can drill a hole in the cupboard and run a thinner extension cable and fix it around the skirting etc to an extension mains socket nearer the phone, plugging said extension cable into the new understairs socket with a 2A fused plug.  Or would a fused spur be more sensible?

Why not run the new circuit all the way to the phone, I hear you ask?  Mother fusses about wire visibility etc and although one can get white T&E, I'm guessing that it still has to be 2.5mm and so more visible then white/cream flex.

Question...will a sparky add in the radial cable or say no, the whole thing needs a rewire which is out of the question.
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scotspark
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Re: Adding extra circuit to old wiring
Reply #1 - Oct 7th, 2009, 9:44pm
 
all socket outlets need rcd protection so either small consumer unit or seperate rcd for the new cct.

or if cabling is not concealed eg surface or in trunking the could fit rcd protected socket outlet.

main bonding?????


SS
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londonman
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Re: Adding extra circuit to old wiring
Reply #2 - Oct 7th, 2009, 10:01pm
 
Thanks for that. It will be surface wired so an RCD socket outlet will work.

What will happen if, as I suspect, there isn't much evidence of any main bonding etc. ?
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Goodsparks
Re: Adding extra circuit to old wiring
Reply #3 - Oct 8th, 2009, 10:49am
 
Quote:
What will happen if, as I suspect, there isn't much evidence of any main bonding etc. ?


It'll be a cash job  Wink
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londonman
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Re: Adding extra circuit to old wiring
Reply #4 - Oct 9th, 2009, 6:38pm
 
Quote:
Quote:
What will happen if, as I suspect, there isn't much evidence of any main bonding etc. ?


It'll be a cash job  Wink



Grin  Is there any other type ?  Wink
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CWatters
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Re: Adding extra circuit to old wiring
Reply #5 - Oct 9th, 2009, 7:48pm
 
Perhaps move the telephone socket instead? Phone wire is quite small. Flat type can be run under carpet etc.
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londonman
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Re: Adding extra circuit to old wiring
Reply #6 - Oct 10th, 2009, 2:38pm
 
CWatters wrote on Oct 9th, 2009, 7:48pm:
Perhaps move the telephone socket instead? Phone wire is quite small. Flat type can be run under carpet etc.


Nice bit of lateral thinking there. Unfortunately when they wired the house sockets must have been like gold dust as there isn't single socket anywhere in the downstairs hallway!
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CWatters
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Re: Adding extra circuit to old wiring
Reply #7 - Oct 10th, 2009, 8:27pm
 
londonman wrote on Oct 10th, 2009, 2:38pm:
CWatters wrote on Oct 9th, 2009, 7:48pm:
Perhaps move the telephone socket instead? Phone wire is quite small. Flat type can be run under carpet etc.


Nice bit of lateral thinking there. Unfortunately when they wired the house sockets must have been like gold dust as there isn't single socket anywhere in the downstairs hallway!


Does the alarm unit have to be in the hallway. You can extend a phone line quite a long way.  It will be the next thing you are asked to do anyway - she'll want an extension next to her armchair and one near the bed.
Smiley
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« Last Edit: Oct 10th, 2009, 8:28pm by CWatters »  
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londonman
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Re: Adding extra circuit to old wiring
Reply #8 - Oct 17th, 2009, 5:03pm
 
CWatters wrote on Oct 10th, 2009, 8:27pm:
londonman wrote on Oct 10th, 2009, 2:38pm:
CWatters wrote on Oct 9th, 2009, 7:48pm:
Perhaps move the telephone socket instead? Phone wire is quite small. Flat type can be run under carpet etc.


Nice bit of lateral thinking there. Unfortunately when they wired the house sockets must have been like gold dust as there isn't single socket anywhere in the downstairs hallway!


Does the alarm unit have to be in the hallway. You can extend a phone line quite a long way.  It will be the next thing you are asked to do anyway - she'll want an extension next to her armchair and one near the bed.
Smiley


It is the best place because it has a built-in microphone and loudseaker, the theory being that if she takes atumble, she presses her button hanging on a cord around her neck, whih triggers the unit to dial up the control centre. Then the operator tries to speak to her via the box. That's the theory.
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The_Trician
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Re: Adding extra circuit to old wiring
Reply #9 - Oct 19th, 2009, 1:40pm
 
No need for 2.5 cable for such an application, especially if it is a dedicated cct from the cu and is fused down to say 5A and a 2 A plug/socket is fitted at the other end.

A bit of 1.00mm twin would be fine for such an application.

TT.

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