Reverse Engineering

[seftonbarn]

I am trying to do a bit of reverse engineering and work outhow the socket outlets on my newly purchased bungalow are installed. Here are some facts:

For the circuit in question the CU has two 2.5mm T&E cables connected to a 32A MCB.

There are 19 socket outlets (SO) on the circuit in variousrooms.

On removing each SO I can determine that about half have a single 2.5mm cable connected and a half have two 2.5mm T&E cablesconnected.

Is there a methodology or process that I can follow to help me work out how the system is installed. For example, could I got o each SO which has 2 cables connected and, one at a time, disconnect that SO,then re-energize at the CU and determine how it affects the other SOs in the circuit. If I do that for each SO systematically is there a procedure or process that will help me work out the installation

 

[Carlosfandango]

Why not go to the pub and get a life!

 

[VoltzElectrical]

don't do anything live!

Choose a nice sunny day and start in the morning. Remove all face plates and start by identifying the first leg of the ring by cross connecting the line and earth at the DB then testing continuity between line and earth..........

second thoughts, if I have to explain this, then call an electrician, because if I have to explain how to 'bell out' to a fellow sparky, then god help.

so you must be a DIYer and this should be on the DIY forum.

LEAVE WELL ALONE AND CALL AN ELECTRICIAN.

DO NOT TOUCH YOUR ELECTRICS!

 

[bugsy]

9 with loop in loop out 9 with a single cable ? 1 ocpd protecting two cables - no way
your a wind up!

 

[Andy78]

You probably have a ring circuit with various spurs from undetermined points, most likely junction boxes under the floor. Don't assume you have a ring circuit though, I have seen plenty 32A MCBs with 2 2.5mm radials in them.

So ring continuity testing then continuity testing of all the legs. As said, DO NOT disconnect random wires then go energising the circuit. Best to call an electrician with the correct test gear and knowledge.

 

[bugsy]

don't do anything live!

Choose a nice sunny day and start in the morning. Remove all face plates and start by identifying the first leg of the ring by cross connecting the line and earth at the DB then testing continuity between line and earth..........

second thoughts, if I have to explain this, then call an electrician, because if I have to explain how to 'bell out' to a fellow sparky, then god help.

so you must be a DIYer and this should be on the DIY forum.

LEAVE WELL ALONE AND CALL AN ELECTRICIAN.

DO NOT TOUCH YOUR ELECTRICS!

think about it 9 loop in loop out and 9 radials

 

[seftonbarn]

Just got back; clearly you were ther for a lot longer than I was.

 

[VoltzElectrical]

Just got back; clearly you were ther for a lot longer than I was.

eh? what does that mean? where were you? where were you?

"Is that you John Wayne? Is this me?"

 

[seftonbarn]

??????

I am trying to do a bit of reverse engineering and work outhow the socket outlets on my newly purchased bungalow are installed. Here are some facts:

For the circuit in question the CU has two 2.5mm T&E cables connected to a 32A MCB.

There are 19 socket outlets (SO) on the circuit in variousrooms.

On removing each SO I can determine that about half have a single 2.5mm cable connected and a half have two 2.5mm T&E cablesconnected.

Is there a methodology or process that I can follow to help me work out how the system is installed. For example, could I got o each SO which has 2 cables connected and, one at a time, disconnect that SO,then re-energize at the CU and determine how it affects the other SOs in the circuit. If I do that for each SO systematically is there a procedure or process that will help me work out the installation

 

[seftonbarn]

OK. I will post onto the DIY section - but the question will remain the same. I assume your response to the post will be the same.

don't do anything live!

Choose a nice sunny day and start in the morning. Remove all face plates and start by identifying the first leg of the ring by cross connecting the line and earth at the DB then testing continuity between line and earth..........

second thoughts, if I have to explain this, then call an electrician, because if I have to explain how to 'bell out' to a fellow sparky, then god help.

so you must be a DIYer and this should be on the DIY forum.

LEAVE WELL ALONE AND CALL AN ELECTRICIAN.

DO NOT TOUCH YOUR ELECTRICS!

 

[Knobhead]

90 posts to date? I dread to think what the early ones are like.

 

[snowhead]

90 posts to date? I dread to think what the early ones are like.

May 2012 may explain it;


My job is fixing helciopters. I've been doing it for 32 years in the Royal Navy but they are kicking me out to grass so I have to find a new trade. I'm doing my best.

 

[seftonbarn]

??????

OK. I will post onto the DIY section - but the question will remain the same. I assume your response to the post will be the same.

 

[seftonbarn]

I feel that I posted an appropriate question. I got one sensible response from "Andy 78". The rest of the responses appear to be from people that choose to use this forum as a means of "knowledge Willie waving". I post my questions to learn from people that have more knowledge than me; not to be ridiculed by those that have more knowledge than me that they have more knowledge than me.

 

[snowhead]

You repaired helicopters yet you can't work out how a few wires are connected?