Electric shower

[ton]

Just installed a 9.5kw electric shower and used existing wiring from 8.5kw, the shower tripped intially but seems to be working okay now.
I check the amp 45 and it is correct, Im not sure if the wiring was 10mm2, and there is a RCB under the staircase Im assuming its okay.
Im a bit concerned over the tripping should I be?

 

[Qedelec]

Just installed a 9.5kw electric shower and used existing wiring from 8.5kw, the shower tripped intially but seems to be working okay now.

Part P, notifiable!!!
Did you test the circuit for R1+R2 and insulation resistance before energising it?

I check the amp 45 and it is correct,

And how do you know this?

Im not sure if the wiring was 10mm2,

Do you understand why you need 10mm²?

and there is a RCB under the staircase Im assuming its okay.

And you base this diagnosis on what?

Im a bit concerned over the tripping should I be?

You are right to be concerned, Get it checked by someone who can verify that this is safe!!!
Bathrooms are designated 'Special Locations' for very good reasons.

 

[ton]

Thanks for getting back to me I will have someone come over tonight and check out what you pointed out.