TN-C-S vs TN-S Earthing for Switchboard Feeding Pump in Hazardous Area Australia

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#1 21684056 28 Feb 2020 10:37

victor goh victor goh

Anonymous

Post #1
21684056 28 Feb 2020 10:37

In Australia, we use TN-C-S system. I have a switchboard feeds a pump in hazardous area. I knew for switchboard in Hazardous area it needs to connect to a TN-S system. So should I remove the MEN link in the switchboard? Could anyone help me with this matter? Thanks.
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#2 21684057 28 Feb 2020 16:11

Alan Gallagher Alan Gallagher

Anonymous

Post #2
21684057 28 Feb 2020 16:11

Hi Victor,Is the switchboard in a hazardous area aswell or just the pump? If only the pump then the MEN link should stay, I believe as per AS3000 as it is a standard installation. Refer to AS60079.14 I think, it should cover you if the switchboard is in a hazardous area.
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