Workers accidentally cut the wire... I'm looking for advice.

[alexkiran]

Workers accidentally cut the wire with some power tool. It's a 2.5mm ring circuit wire with 20A breaker.

What is the optimal way to fix this?

Location:



Thanks in advance!

 

[Pete999]

Workers accidentally cut the wire with some power tool. It's a 2.5mm ring circuit wire with 20A breaker.

What is the optimal way to fix this?

View attachment 56154

Location:

View attachment 56155

Thanks in advance!

Rewire and test the damaged cable, down to the "Worker's" insurance to pay for the remedial wirk and any materials.

 

[alexkiran]

Rewire and test the damaged cable, down to the "Worker's" insurance to pay for the remedial wirk and any materials.

Thanks. They told me they will restore insulation and it will be fine. As I understand by your advice it's not enough, right?

 

[DPG]

There is conductor damage, not just insulation. I would say cut below damage and join a new length (with Wagos or similar in a suitable enclosure) from under floor to socket.

Might not have to damage the plaster if it can be slid up the capping.

 

[telectrix]

Thanks. They told me they will restore insulation and it will be fine. As I understand by your advice it's not enough, right?

it definitely is not enough. the cable needs cutting and jointing safely using maintenance free connections and enclosure/s. the circuit will then need to be tested and a certificate issued. not a job for some builder who "thinks" he can fix it. also, your regulations are different to ours. i think only registered electricians can do this work, but will stand corrected if an Irish member says different. if the's a bit of slack in the cable from under floor, it's not a big job. get builder/whoever to open their wallet and pay for a proper repair.

 

[Pete999]

Thanks. They told me they will restore insulation and it will be fine. As I understand by your advice it's not enough, right?

Some would overtape the damage, me I would replace damaged leg, looks like the phase(live) conductor has some material missing, as does the cpc (earth) conductor, a possibility of some overheating should the cable be subjected to a heavy electrical load.
Where the cable exits the wall and enters the floor, is it a solid floor? ie tiles or concrete. So yes restoring the insulation is insufficient in my professional opinion.

 

[DPG]

Looks like Chipboard Pete. I agree, the cable needs repairing properly.

 

[alexkiran]

Thanks, guys! That what I wanted to know. I'll insist on a proper fix by registered electrician.

 

[davesparks]

The conductor is damaged, that part of the cable needs to be removed.
You might be lucky and have enough slack in the cable under the floor for it to still reach the socket. If not then that cable should be replaced or if that's not possible then a maintainence free joint could be used.

 

[telectrix]

agree with above^^^. ether repair as i suggested, or install a new pice to the socket. either way, a safe, reliable, comliant joint is required.

 

[littlespark]

Has the black already been taped up? Could be more damage that we can’t see.
Taping it up isn’t a good idea.
Echo what’s been said before.

 

[DPG]

Has the black already been taped up? Could be more damage that we can’t see.
Taping it up isn’t a good idea.
Echo what’s been said before.

I reckon they've put some tape round it as a temporary fix.

 

[alexkiran]

The conductor is damaged, that part of the cable needs to be removed.
You might be lucky and have enough slack in the cable under the floor for it to still reach the socket. If not then that cable should be replaced or if that's not possible then a maintainence free joint could be used.

There is no enough slack, unfortunately. What kind of maintenance-free joints do electricians use in the UK?

 

[littlespark]

I reckon they've put some tape round it as a temporary fix.

Well I didn’t think it came out the wall ready taped...
bottom line.... copper is damaged, cross section area and therefor current carrying capacity reduced. That length needs replaced.

 

[alexkiran]

I reckon they've put some tape round it as a temporary fix.

Yes, that's just temporary insulation.

 

[Pete999]

There is no enough slack, unfortunately. What kind of maintenance-free joints do electricians use in the UK?

Wago along with a Wago enclosure, in the floor space.

 

[westward10]

Regulations differ in the UK to the Republic of Ireland so alternative measures may be required. @Risteard will advise better if he sees this.

 

[Pete999]

Beware of people saying it's only a temporary repair, insist on a proper repair, seen many a temporary repair left in as permanent, and also insist on a MNEW certificate for altering an existing circuit.

 

[westward10]

I don't believe Minor Works Certificates are applicable in the Republic of Ireland.

 

[telectrix]

if space is an issue,in line crimps or proprietry connectors like "ideal" with heat shrink ove each joint, then heat shrink over all 3. or 1 of these beautys, also with heat shrink over to reinstate the sheathing.

In Line Spring Lever Connectors

Use these 32A spring lever connectors for an easy, fast-fit connection. The levers are a real time-saver, and the compact design makes them easier to work with in confined spaces.• 3 in 3 out inline lever connectors• Spring levers for easy, fast-fit connections• Colour-coded for live, neutral...

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