Hi, I don't think people need a detailed explanation for this. Everybody understands about earthing, don't they?. I'd just say eg For safety reasons, the stand needs an earthed socket.
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khoffIn the U.S. we call it a "grounded socket." When I saw "earthed socket" it took me a minute to figure out what it meant!I had the same reaction! I've never heard of anything being "earthed". Must be a British/Canadian thing.
Pamela81The earthed \ grounded socket is necessary to ensure the safety of the stand against electricity" is it totally wrong?No, it's not totally wrong. Just the last part is a little awkward. "the safety ... against electricity" is not the way we would say it in English. We don't say "safety ... against", but we do say "protection against". This is more