The missing MCB is the B40 that is welded to the RCD, the shower it supplied has been removed so I have terminated the circuit into the MET and not replaced the MCB. The wholesalers only stock MK internal tail kits and they are not long enough for this consumer unit, so the replacement tail is tri-rated cable.
What you have not picked up on is the standard of the original installation which is neat with each conductor numbered, I know the guy who installed this, he is now retired however I worked with him thirty years ago when I was on a site as a carpenter and he was the electrician, he could be best described as fastidious or an anorak, he always struggled to make a living because he was gold plating his jobs when the customers were not paying a premium price, he missed this though.
It is amazing it took twenty two years for the problem to become an issue, the end of the internal tail burnt off and you can see it in the terminal.
The missing MCB is the B40 that is welded to the RCD, the shower it supplied has been removed so I have terminated the circuit into the MET and not replaced the MCB. The wholesalers only stock MK internal tail kits and they are not long enough for this consumer unit, so the replacement tail is tri-rated cable.
What you have not picked up on is the standard of the original installation which is neat with each conductor numbered, I know the guy who installed this, he is now retired however I worked with him thirty years ago when I was on a site as a carpenter and he was the electrician, he could be best described as fastidious or an anorak, he always struggled to make a living because he was gold plating his jobs when the customers were not paying a premium price, he missed this though.
It is amazing it took twenty two years for the problem to become an issue, the end of the internal tail burnt off and you can see it in the terminal.