Good day to all

I have a situation which I would like to get some answers too:

I was asked to do an electrical inspection on a house which is quite old now I have a couple of questions if anybody can help me.

1. The breakers in the DB board has no kA rating on them. Do they need to be replaced? If I can quote SANS 10142 Edition 2

If you have a look at SANS 10142 Edition 2 under 8.5.3 Inspection it says:
• During inspection, confirm that all protective devices are capable of withstanding the prospective short-circuit current.

If there is no kA rating on the breaker, how can I be sure the breaker is going to withstand the PSCC that I have measured/calculated at the point of supply or control from the supplier.

And how can I the complete my COC at section 4 point 3 correctly which read:
• “ All protective devices are capable of withstanding the prospective fault level”


Then secondly. The house still has steel conduit throughout. On the socket outlets they still use the conduit as earth. If you open the plugs, there is no physical earth wire on the socket outlets. Do you need to pull in an earth to each socket outlet or how do one go about rectifying this problem.


Thanks beforehand for any input