Hi Tony,
I imagine I am like a good number of hard working contributors to this forum. I put myself in the "want to be as professional as I can be, but need more experience and the odd bit of help from those more knowledgeable category".
So I always spend a little time thinking about my thread because it seems there are a school of sharks, not sparks, out there waiting to snap at you with comments usually about competence. I could go on but I think I have made my point and having looked at the positive part of your reply I realise I could have added a bit more information. Therefore you, or anyone else, may be able to help further knowing the following.
I recently did some remedial work on an industrial unit and I was unsure how to remedy a CAT 2 observation made by the tester that a three phase circuit did not provide adequate overload protection. The Hager h125d circuit breaker fed a distribution boards less than a metre away via 35mm singles (Table 4D1A). Using Reference Method B the CCC isn't compatible with the circuit breaker and therefore I was seeking a remedy. Using 90 degree cable provides a solution and I was seeking more information about it so I could ensure I ordered the correct cable having not used it before.
I have considered changing the circuit breaker to 100 amp but the distribution board switch is 125 amp
Any thoughts ?