Portable Appliance Testing?
In article
,
whisky-dave wrote:
On Jun 3, 9:05 am, charles wrote:
In article , H. Neary
wrote:
[Snip]
A visual inspection finds virtually everything.
That depends on how thorough you are. Do you open the plug top and
check the terminals?
A DMM will find the earth faults and insulation problems, the supply
breaker you plug into isn't too bad for leakage caused by none linear
conductors.
A PAT tester would possibly find a few problems that the DMM wouldn't,
but given a protected supply with an RCCD there is no risk.
A DMM does not provide 500v. You need that to check insulation.
I don;t think you can on all equipment, it's OK on leads but putting
500V into a lot of electronic
and scientific equipment isn't a good idea, particually computers or
so I was told.
agreed. 240v is usual for them. but again you don't get that from a DMM.
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