MK Sentry question

[xr4x4]

and the electrician doing it showed me it worked by showing that the RCDs themselves tripped when the test button was pressed with electricity going through.

This isn't the way to test if an rcd is working correctly, anyone doing electrics compenant or not, should have a tester.

Hell, I'm not an electrian but I have one.

 

[AndyPRK]

What a bodge.

Certainly with the mains switch the L breaks before the N.

Maybe rcds are the same.

 

[sparkwright]

I would like to think any isolator that breaks one pole before the other would have it's terminals marked up very clearly...

 

[xr4x4]

I would like to think any isolator that breaks one pole before the other would have it's terminals marked up very clearly...

Forgive me if I'm wrong the pictures are to blurry to see if they are marked or not?

 

[xr4x4]

I would like to think any isolator that breaks one pole before the other would have it's terminals marked up very clearly...

Forgive me if I'm wrong the pictures are to blurry to see if they are marked or not?

The rcds are marked , neutral to the left.

 

[333rocky333]

Forgive me if I'm wrong the pictures are to blurry to see if they are marked or not?

Its on the schematic wiring diagram
1 and N at top and 2 and N at the bottom
Same as on the pic posted by ELI

 

[RF Lighting]

That entire abortion needs to be confined to the bin, and be sorted out by someone who actually has the first clue about what they're doing.

Good grief.

 

[ban-all-sheds]

Your competent installer may be competent

I think not.

I'm having the consumer unit changed in my flat. Installed by "competent" person,

No. If he led you to believe that then he lied.

LA informed and qualified person coming around to check sign off at the end.

Says it all. He is not capable of certifying his own work.