Rcd not tripping and ramp test more than 30ma

[Leesparkykent]

Hahaha yes mate, I've been known to mention kettles if no offers are forthcoming after half an hour at the job.

One of the sparks I worked with during my apprenticeship once unscrewed the plug top on the kettle in front of the customer and looked at me and said the fuse seems to be good lol

 

[Dave OCD]

One of the sparks I worked with during my apprenticeship once unscrewed the plug top on the kettle in front of the customer and looked at me and said the fuse seems to be good lol

Excellent ! Can you remember if the extreme hint got the required result Lee ? :biggrin:

 

[Leesparkykent]

Excellent ! Can you remember if the extreme hint got the required result Lee ? :biggrin:

Lol yeah It did actually haha. He used to do and come out with all sorts of stuff lol. He didn't take any sugar in his tea so when the customer's asked if he did after offering him a brew he would say no its ok there will be enough sugar on the biscuits lol.

 

[Andy78]

I always chuck a cheeky hint in if they are a bit slow on the offer. "I'm just about to have the power off but I can wait 5 minutes if you were about to get the kettle on" Usually does the trick.

 

[Golden_Boy]

On this principle. Would it therfore also confirm a faulty RCD if the test button didn't work and when tested, as shown in the picture, no resistance is given?

If the internal resistor is open circuit or the test button is not making contact then the test button would not work. However the RCD may still be OK. Thats why the tests are so important.

 

[Skimpy Wan]

If the test button doesn't work wouldn't you change the RCD? Personally, I would so that it can be tested by the end user.

 

[DPG]

If the test button doesn't work wouldn't you change the RCD? Personally, I would so that it can be tested by the end user.

Not just the end user - how would YOU be able to test it fully if the test button didn't work? Daz

 

[Skimpy Wan]

I can plug an MFT in and do a ramp test. The end user can't. Therefore I can confirm that the RCD trips within the parameters of its design, but it would need replacing to check the device regularly.

 

[DPG]

I can plug an MFT in and do a ramp test. The end user can't. Therefore I can confirm that the RCD trips within the parameters of its design, but it would need replacing to check the device regularly.

Checking operation of the test button is one of YOUR essential tests of an RCD also though. Daz

 

[YoungScud]

Functional test

 

[DPG]

Functional test

Indeed.

 

[driverman]

Just a thought......and I'm no expert testing. If the installation meets the TN requirements (as stated earlier) i.e. disconnecting times are met then the RCD's if installed for additional protection , as daft as it may seem do not need testing.

 

[Andy78]

Just a thought......and I'm no expert testing. If the installation meets the TN requirements (as stated earlier) i.e. disconnecting times are met then the RCD's if installed for additional protection , as daft as it may seem do not need testing.

The relevant regs here that state RCDs for additional protection must be tested, and how they are to be tested are 612.10, 612.13.1, and 415.1.1.