I got an electric shock

[wams]

Im getting new carpets fitted throughout the my flat and I had a couple of floor boards that are warped, so I decided to change them. I started to take up the floor boards on the landing of the hallway. I noticed 3 30A junction boxes feeding the ring consisting of 6 double sockets and 1 spur. 2 of the junction boxes have 2 red wires, 2 black wires and 2 earth wires each with no earth sleeving. The third junction box has 7 cables feeding it and all earth conductors are twist together with no sleeving.

I then decided to add earth sleeving to all bare earthing conductors but before undergoing the work I isolated the supply before commencing any work. Firstly I tuned off all electrical appliances connected to the ring. Turned off all circuit breakers at CU and turned off the main switch. As I dont have any testing equipment nor do I have any testing experience and the relevant qualification to carry out such a test. I then proceeded to open and close all lighting switches and socket outlets using a small electrical appliance to make sure no circuit was energised.

I then proceeded to disconnect the first 2 junction boxes that house 6 cables each and successfuly sleeved the earthing conductors. I then proceeded to the third as I started to untwist the earth conductors I got an electric shock. I went to the CU to double check the main switch and circuit breakers were off and they were.

Cant understand how I got a belt, puzzled! Can anyone explain what ive done wrong?

I got a new CU fitted just over a year ago with a electrical installation certificate, schedule of inspection and schedule of test results.

Thanks Wams

 

[Des 56]

well done sparc ( sorted no problem )

 

[GLENNSPARK]

To be honest it’s worth getting the junction boxes sorted professionally. As sure as eggs are eggs everything will be fine until the carpets are down. 7 cables to one box is way OTT.

absolutely agree here Tony.....time and time again we come across systems comprising of joint boxes all over the place in inaccessable areas.....this kind of install is just pants...full stop....they usually give problems in time and also hide a multitude of gaffs and little horrors....such as loose joints and CPCs that have been snipped off...etc.....

 

[nickblake]

Static can be a big problem cant half get some belts off it in the days of the original release of south park a greetings card company sold talking south park dolls i suppose you could call them it was a new shop in the trafford center new carpets and with man made fiber clothing people were always getting a crack off them when they picked them up and they always started talking was funny mind .i keep zapping my cat !!

 

[Silly Sausage]

a local electrician and explained my circumstance and he advised that I messed around with the lower flats junction box and he was never critical as some of you mind. But its histrory now, lets move on.

Many thanks for your distinguished professionalism and contribution!

Wams, It's all part of the banter mate, especially on the interweb.
Glad you've got it sorted.

 

[alarm man]

and not forgetting the effects of a shock can appear over 24hrs later..

 

[Silly Sausage]

A non Wikipedia reference would be good.

 

[alarm man]

A non Wikipedia reference would be good.

mock away archy...mock away...

 

[Silly Sausage]

Not indeed sir!
Mockipedia is the last thing I need to read as a definitive text.
Hence the genuine question for a reference.

 

[Inteificio]

If you lack a tester, (like me yesterday as some "£$^ robbed them), touching the wires together is a surprisingly effective was of telling if they were live. The big bang that ensues is far safer than putting your fingers in.

 

[Deleted member 9648]

If you lack a tester, (like me yesterday as some "£$^ robbed them), touching the wires together is a surprisingly effective was of telling if they were live. The big bang that ensues is far safer than putting your fingers in.

er....I take it this is not actual advise?

 

[telectrix]

If you lack a tester, (like me yesterday as some "£$^ robbed them), touching the wires together is a surprisingly effective was of telling if they were live. The big bang that ensues is far safer than putting your fingers in.

that's also known as plumber's fuse finder.