Robin RCD testers

[John Southern]

What is the function of this feature on the RCD test meter

It also features a phase angle selector for positive or negative half cycle testing.

Thanks in advance

Jon.

[BigWallop]

Go to "instructions.com" and try to get a copy for your tester. But to try and explain how these functions work would probably got to technical for you to comprehend anyway.

[Ian Stirling]

It's barely possible that some RCDs may not trip on one polarity. For faults to earth involving a diode, or other semiconductor device, it might not trip though there was a lethal fault current flowing. Not (IMO) a big issue.

[Bob Eager]

If you email Robin (go to their web site) they'll send you a manual. Well, they did for me.

[Lurch]

On 25 May 2004 10:55:24 -0700, [e-mail] (John Southern) strung together this:

If you knew the theory behind the answer and\or knew how to use one you wouldn't have asked the question!

[Z]

In article , John Southern writes

You are meant to test the RCD at nominal and 5 times nominal on positive and negative half cycles. Test with the button after testing they trip electrically, never before (NICEIC I.Eng guidance though a little sceptical about explanation).

[Z]

In article , Lurch writes

----

Looks like the plus minus H.C. question was an additional question.

[Martin Angove]

I wasn't entirely sure what he meant... but for completeness, and as someone who actually has one of these devices, the destructions tell you to test (x1 then x5) first on 0 degrees, then 180 degrees then 0 degrees again, and take the last two readings, ignoring the first. With some background theory knowledge the manual (fiddling little paper booklet) is actually very useful.

Hwyl!

M.