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Old 12th Sep 2019, 10:53 am   #5
David Simpson
Nonode
 
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,838
Default Re: Earthing a part metal enclosure for mains transformer ?

I'll echo the other guy's concerns about electrical safety. Earthing requirements & safety have been the subject of many a heated thread in the last couple of years. Check "Search".
I see that the T/F is rated at 50VA(50W), so will draw approx. 200mA. Therefore your 3 pin (13A rated))plug should be fitted with a 1A fuse. 0.75mm 3 core flex would be sufficient. But, as Terry & Argus25 say, the earth conductor must go straight to the chassis. A supplementary earth wire bond can go to one of the T/F's securing bolts. 2 core flex of any type is a No No in the 21st century for any sort of mains vintage radio equipment.

Regards, David
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