RCD – C2 and C3 EICR CODES and TESTING Type AC and Type A devices – THE DIFFERENCES

This video is in response to some recent questions and is intended to offer useful guidance about how to code RCD observations and issues when completing an Electrical Installation Condition Report and also about performing the correct tests on the different Types of RCD – in particular Type AC and type A devices

We are sometimes asked - what is the correct observation code for having no RCD installed?
Or, why are some RCD issues given a code C2 and others a code C3, is there a rule to follow?
And should type AC RCDs always be given a code C2?

We will begin with a reminder about the different EICR observation codes as you must understand how these are structured to be able to select the correct codes. We will show you different examples and how to code them.

We will move on to RCD testing and explain what the Wiring Regulations expect and how to complete the testing on different types of RCD.

To view all of our videos type in LearnElectrics all one word into the YouTube search bar.

This is video No.151 on our YouTube channel where we have videos on a wide range of electrical topics.

[damooooo]

Currently doing a £1800 electrical course, to then find your channel where all the info is free. I learn more from these videos than the course. So thank you for the help. Top man.

[qitvsjm]

This is really useful mate. I know a lot more about EICR now. Thanks.

[gregmcallister]

This is far the best educational videos I have come across… please don’t stop 👏🏼👏🏼👏🏼👏🏼

[Sergey]

Love all of yours videos Dave.massive thank you for investing your time and educating/refreshing knowledge of new generation of electricians.

[anthonyfindlay]

Thank you so much! your explanation is clear an precise you make learning easier. I'm looking forward to more of your videos daily, keep them coming you're doing a wonderful job.👍👍

[iqbalnuthoo]

Thank you very much, as always, amazing teacher

[Dog-whisperer]

Hi David just a small point . we are no longer required to test RCDs at 1/2 x 1x or 5x, we can if we choose to but we are not required to, also there is no ware on the test certificate to record the 1/2x and 5x test .
In my opinion this is a stupid idea what was the IET thinking when the made this change?
But I for one will continue to test At 1/2x 1x and 5x I have no intention of just trusting the manufacturers when they say the device works correctly.
Fantastic video as always
👍👍👍

[dennisphoenix]

The code classification of C1 for 1 thing and C2 for 2 things is a good way to remember the coding . Thanks

[gyasikrasineb]

Most invaluable information thanks for posting.

[gbelectricks]

Great explanation as ever dave, one question though, if an older tt installation has only 1 AC Rcd at the head of the board, covering everything. So the Rcd is providing fault protection, would you c2 this on an eicr?

[krazylad]

excellent Video Dave however I have a question as you mentioned if only sockets are suspected to feed outdoor then C2 otherwise C3 with no RCD but you didnt mention anything about Luminairs?
I read somwhere Luminairs should be RCD protected how would you tackle this?
Thanks

[sunshine]

Slightly off topic, but I have a question regarding rcd protection. I was doing a job a couple of weeks in which I had to add 2 lights to an existing circuit "commercial " the lighting circuit in question was protected by an mcb but does have switch drops etc. Now as I was the last person to work on the circuit I was under the assumption that I would now need to protect it by an rcd. My mate thinks differently. Any info would be welcomed.

Thanks.

[AS_editz]

Thank you, for sharing your knowledge with us. I have learned too much from you and did pass my BS 7671 and 2391-52 in just two months.
I would like if you could make some videos about PV system and EV charger. It would help many of us. Thank you once again and wish you happy life./ Safi

[grmo]

Another really useful video, thank you. The additional testing required for type A RCDs was really useful info, and I’m now thinking that my old Megger 1552 MFT isn’t really up to the job of adequately testing type A RCDs - it only has 100 mA and 300 mA ranges on the mA dial, not the 50 mA and 250 mA suggested in the video. Thoughts, anyone??

[JIBS.]

Hi Learn electrics your videos have literally been brilliant helping me out during my First year starting out, they're so easy to understand.
I have got a question if you can give advice please. Lets say a customer wants power to outdoor sockets and power to an outbuilding and everything is fine like bonding, RCD protected etc etc. Would you need to retrofit an SPD in this instance ? Or does SPD installations only be required when fitting a new CU. Thank you so much.

[albioncompliance]

Your videos are brilliant, just a question, isn’t medical location in Brown book is 710 ? In video says 701

[ahmedalazazi]

Excellent
May I ask you a question
If you air conditioners with inverters do I have to select an RCD type B or type A is enough
Best regards

[yusofyusof]

Sir, I have a question with regards to testing of the RCD. Should the SPD or AFDD should be disconnected prior to carry out RCD testing? To avoid damaged to the devise. Is this correct?

[papillonbougie]

Please can you make a video for a three and single phase motor test ( steps of test on them) thanks

[Dog-whisperer]

David can you tell me why the big push for RCDs for sockets particularly for portable equipment use outside would a 30ma plug type RCD be an easier option and better as if it goes it’s not going to take the main ring circuit with it ? All my garden tools have 30ma three pin plug RCDs and they do work just as well, I test them at least once a month so I know they are working as intended. You’re thought’s would be much appreciated.
Many thanks 👍