Rcd test

[Cj24]

How do you do your rcd test

 

[pevvers]

With an RCD tester.

 

[Sintra]

Rcd Test Procedure

Many RCD test meters have a facility where tests can be carried out during the positive or negative half of the supply cycle.

For tests 1 & 2 the RCD operating time to be recorded is the longer of the two measured during the half cycle tests.

Do not press the test button on the RCD before testing as this can temporarily reset a faulty RCD.

Test 1
Adjust the current setting on the test meter to 100% of the rated trip current of the RCD and perform a test. A general purpose BS4293 RCD should operate within 200ms. A general purpose BS61008 RCD or RCBO to BS61009 should operate within 300ms.

Test 2
An RCD provided for basic protection should have a rated trip current not exceeding 30ma. If the RCD is rated at 30ma, adjust the current setting on the test meter to 150ma (x5) and perform a test. The RCD must operate in a time not exceeding 40ms.

Test 3
Adjust the current setting on the test meter to 50% of the RCD trip current and perform a test. The RCD should not operate within 2 seconds.

The Test Button
Finally operate the RCD by pressing its test button.

 

[Cj24]

With a megga tester

 

[chris gray]

dude why say that?
you've been given an excellent response there and your answer is demeaning at best.
you would use an rcd tester to do an rcd test

 

[Sintra]

With a megga tester

Please read previous posts as it clearly tells you which instrument to use.

 

[Hawk81]

cj are you training to be an electrician. If so what stage are yot at? I was shown the different testers and what they were for very soon after starting. Maybe you should ask your employer to do the same. But someone did give you a full and brilliant answer above. Plus it is known as a megger not a megga. That is not the instrument for an rcd test tho.

 

[Phil]

http://www.electriciansforums.net/e...orum/10342-section-301-questions-testing.html

have a good read through this post, some real top quality posts by amberleaf. i am sure it will help you in your quest for knowledge

 

[Spudnik]

Good idea Phil,

And also make sure you hit the thanks button MANY times.

Amberleaf has given more information in those threads than i think most of us have together.

And all for nothing.

 

[nickblake]

And a ramp test this will tell you what current the RCD trips at , my brain hurts

CJ my friend go on U Tube theyve got some great electrical bits and bobs that may help you ,

CITY&GUILDS 2391 & 2330 TESTING ELECTRICAL 17th 3 dvds


go buy this its on ebay £6.50

17TH Edition Electrical DVD ROM - 8GB + Video's

this ones £7.00

 

[cbw]

The other option is handy man tips, a bit of a you tube star, sure he will have a section on testing, How do you test for a live circuit? as Pevvers would probably say......With a wet finger........

 

[nickblake]

cbw dont be silly you use your tounge ,like the battery test lol

 

[cbw]

Now I knew I was going wrong somewhere...

 

[pevvers]

How do you test for a live circuit? as Pevvers would probably say......With a wet finger........

As if I'd say that!

I would tell him to test it with an approved voltage indicating device to GS38.

 

[ezzzekiel]

just as a matter of course, this is a very helpful forum with some great guys who know there stuff.
its not however a replacement for real training as an electrician.
i would suggest buying a book (Gn3) or similar