"Earth Loop" Connections on UK power connector?

Question

Sorry for the repeat! I posted this back in February and am STILL trying to figure out what to do with all these earth connections at the equipment end. At our customer's request, we're installing a UK power inlet that has three earth terminals: Protective Earth (green/yellow), and E1 and E2 (yellow). It describes the E1 and E2 terminals as "2 functional earths (E1, E2) for high integrity "earth loop"". This is something new to me. Can someone describe how E1 and E2 are used? Do we just connect all three to our ground lug in the cabinet?

THANKS!

Harold

Robbie Mayhem · Accepted Answer

Sorry I can't directly answer your question but you could try asking here

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you may have to register with the IET (formerly the IEE and IIE). Someone there should be able to answer your question. HTH

Rob

Gavin Parsons · Answer

Have never seen an outlet with 3 earths.Functional earth hmmm you must be using something that has a high earth leakage. This would normally be connected to a 'clean' earth bar.Any chance of a photo or a better discription of its usageGavin

harold · Answer

Here's a link to the connector:Again, our customer requested we use this as an inlet on our productsince it's a compact 32A connector. I'm just trying to figure out whatto do with all those earth connections.Thanks!Harold

Gavin Parsons · Answer

As i thought IT equipment.The 3rd earth is for supplementry bonding purposesThe Earth E1 is main earth and E2 is functional earth to go to a clean earth bar in the IT roomGavin

harold · Answer

So, inside the piece of equipment, do we just tie the three groundleads (PE, E1, E2) to the chassis?Thanks!Harold

Gavin Parsons · Answer

PE in main earthE1 is functional earthE3 is supplementry to chassis

"Earth Loop" Connections on UK power connector?

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