No no i never said you quoted or interpreted the regs incorrectly all i am saying is that we need to be open to new and better ways to do our job nothing in the presentation falls outside of the regs it is just taken a step further to ensure proper bonding and earthing. To me it would be safer to use 2.5 mm earth conductor even though your bonding resistance falls within the specifications of the regs. And to Derlyn that
jumps to your defence bonding is to bring all exposed metal parts to the same potential and an earth conductor carries fault currents to the main earthing bar in the db. There is a difference in a geyser compared to socket wiring extra care needs to be taken on any electrical installations where water is involved and socket outlets are not dedicated curcuits but geysers are. To take a example that is in the regs it is not compulsory for lights to go through a rcd to me all curcuit breakers on a db should go through an rcd makes the installation much safer and it is all about safety. Your next question may be "what about nuisance tripping" nuisance tripping is an actual fault and needs to be addressed, by using more than one rcd critical curcuits can have their own rcd. There is always room for improvement and learning we all learn new better ways every day unless you are stuck in a rut. Now guys explain to me on the few slides i have posted what is not inline with the regulations.Remember there are different ways of doing things but there is always "best practice". The regs also states that any electrical installation needs to be reasonably safe so meaning that with application of good practice you could make it safer.
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