problen with ring main

[skinneyb]

I have posted this before put dose not seem to of posted so sorry if is a repost I have added a few socket outlets to my ring main everything is working fine but for some reason when I have tested every socket with a socket tester some outlets read that L and N are swaped over only on a few sockets I have done the following

Tested tester to make sure it is not at fault
Unplugged everything

Can anyone tell me why is is happening and only on a few sockets


Thanks in advance

 

[telectrix]

either you have wired some sockets reversed L and N or there is a reverse on an existing socket or a junction box.

 

[Sintra]

I would suggest you carry out the correct continuity testing on the ring final circuit before energising and certainly before using a socket tester.

Continuity of ring final circuit conductors

Reason: This test ensures that all ring final circuits (sockets usually) are indeed a continuous ring with no interconnects or breaks within it.

Method: The line, neutral and earth conductors of the circuit are identified and a measurement from one end to the other end of each is taken. These results are r1, r2 and rn.
The incoming line conductor is then connected to the outgoing earth conductor and the outgoing line conductor is connected to the incoming earth conductor. A measurement is then taken at ALL socket outlets on the ring. This result is R1+R2 for that circuit. The above is then repeated using the neutral conductor instead of the earth conductor.

 

[Octopus]

Hum - are you sure you have an earth at all the sockets? What are the end to end readings for the ring. for all 3 cores?

 

[Plonker 3]

You need to do as Sintra said, a r1,r2 and rn then a (R1+R2) on the sockets to ensure the polarity is correct.

 

[Octopus]

You need to do as Sintra said, a r1,r2 and rn then a (R1+R2) on the sockets to ensure the polarity is correct.

with a socket tester?

 

[Plonker 3]

with a socket tester?

I wouldmhope that if they are carrying out fault finding they have the correct test equipment, because if not then he may as well give up now.

 

[Octopus]

I wouldmhope that if they are carrying out fault finding they have the correct test equipment, because if not then he may as well give up now.

its a DIY if you ask me, maybe the OP can enlighten us?

 

[GMES]

His profile says Trainee, skinney are you currently on any courses if so you may be better registering for the trainee section.

 

[Deleted member 9648]

I have posted this before put dose not seem to of posted so sorry if is a repost I have added a few socket outlets to my ring main everything is working fine but for some reason when I have tested every socket with a socket tester some outlets read that L and N are swaped over only on a few sockets I have done the following

Tested tester to make sure it is not at fault
Unplugged everything

Can anyone tell me why is is happening and only on a few sockets Because there's a problem with those sockets.


Thanks in advance

Hope this helps.