OK Tell me the worst.
I have a 1970s house, the consumer unit is an old brown 6 way Wylex, the rewirables have been replaced with plugin MCBs many years ago. The wooden frame part of the unit is falling apart, it needs replacing.
Now the complications. The CU is in an outside meter box which is let into the external skin of the lounge wall on the side of the house. The Service cable enters through a bashed out hole in the bottom of the meter box via the wall cavity. The service head has a little label by it saying PME System but it is definitely TT with earth rod not PME.
There is no Main Bonding (due to v_ELCB) but bathroom does have cross bonding of pipes and radiators which goes back to CU earth.
The DNO recently installed one of the new mini meters. The meter tails goto a v-ELCB (I know it's obsolete) thence to the CU, 2 ring mains, 2 lighting, 1 cooker, 1 immersion. The cables from the CU go up inside the cavity (no insulation) to first floor and loft. I also know there are junction boxes under floors which are inaccessible.(solid wood floors on top). I know this is all Part P.
So if and when I get a certified professional in to replace the CU and v-ELCB what else will be involved in view of existing circuits in cavity and CU in the meter cabinet?
I have a 1970s house, the consumer unit is an old brown 6 way Wylex, the rewirables have been replaced with plugin MCBs many years ago. The wooden frame part of the unit is falling apart, it needs replacing.
Now the complications. The CU is in an outside meter box which is let into the external skin of the lounge wall on the side of the house. The Service cable enters through a bashed out hole in the bottom of the meter box via the wall cavity. The service head has a little label by it saying PME System but it is definitely TT with earth rod not PME.
There is no Main Bonding (due to v_ELCB) but bathroom does have cross bonding of pipes and radiators which goes back to CU earth.
The DNO recently installed one of the new mini meters. The meter tails goto a v-ELCB (I know it's obsolete) thence to the CU, 2 ring mains, 2 lighting, 1 cooker, 1 immersion. The cables from the CU go up inside the cavity (no insulation) to first floor and loft. I also know there are junction boxes under floors which are inaccessible.(solid wood floors on top). I know this is all Part P.
So if and when I get a certified professional in to replace the CU and v-ELCB what else will be involved in view of existing circuits in cavity and CU in the meter cabinet?