how to detect easily damaged cable under floorboards

[nk1255]

hello

theres a damaged cable under floor boards in either the living room, hallway or dining room.

the 'downstairs sockets' mcb type b in consumer unit trips as soon as i flick it back up, so the problem is in one of the rooms above.

how do i detect which cable under the floorboards it is without having to remove carpets and dining room tiles, as that's a big job and costly.

are there any qualified electricians on this forum that can help with how to identify the problem from the consumer unit?

i was told that you can check from the consumer unit ( from the mcb type b that has tripped) or from the ring main.
apparantly you can use a multimeter(?) to check which cable from the ring main (tripped mcb type b) has dropped voltage/amps.
also can check the cables in each socket which is affected with a multimeter.

how can a megger ( insulation meter) be used to check which cable is damaged?

thanks

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[Dustydazzler]

Rough arsehole installs make great viewing

Neat jobs are boring and I would rather watch paint dry

 

[Markyd]

thanks everyone

im not going to find the fault myself! im not an electrician!

i want to know how to identify the problem step by step
step 1 what to check
step 2 what to check
etc
also what equipment is needed

then i can call an electrician to check
if i know what checks are to be done, then ill know if the electrician is ripping me off or not!

You can also buy a special seat that attaches to the sparkys shoulder so you can sit and make sure he is not time wasting