32 amp 3 phase socket, 300ma RCD

[davesparks]

My thinking RE risk assessment is if socket isolator is locked at all times (which it can be whether in use or not) then it is under control of management.

Would it be under the control of management who are fully aware of the dangers and care about electrical safety and diligently ensure it is locked off after every use and the keys properly controlled?

Or would it be under the control of management who would just hang the key on a hook next to the isolator or if a 32 socket was needed for a welder to get a job done or a big water pump if something floods, would just hand over the keys and not ever check that it got locked again?

 

[timhoward]

Would it be under the control of management who are fully aware of the dangers and care about electrical safety and diligently ensure it is locked off after every use and the keys properly controlled?

Point taken and I agree this is the main issue - the level of risk is a function of the control measures which can be completely ignored immediately or in the future if management change.
In this case I believe the present management do care. To obtain keys for the 3 phase distro board that feeds all of this I had to go to the office and sign them out. I've had sensible discussions about other EICR findings and they took swift action with another situation that was dangerous.

So a few ways to skin this cat.
a) change to 30ma RCD. This leads to 3 x 30ma RCDs in a row, far from ideal, but complies. Only comeback on me is either accumulated leakage / nuisance tripping.
b) Write risk assessment leaving it alone. Complies. Safety dependent on people sticking to RA. I'm left exposed if my RA isn't up to scatch.
c) change to 63amp socket. Complies whatever the socket is used for.

I've appreciated all the input. Thanks.

 

[westward10]

You are over thinking this.
Choices, change to a 63A socket or fit a 32A socket which incorporates a 30ma RCD (leave the 300ma RCD in place).

 

[timhoward]

leave the 300ma RCD in place

300ma is integral to existing 32amp socket.

 

[westward10]

300ma is integral to existing 32amp socket.

Well just fit a 30ma RCD or 63A socket. Your job stops at the socket not what is connected from it with regard to the RCD.

 

[Rockingit]

As per above from Dave. Swap to a 63A outlet and problem goes away. What gets plugged into it is not part of an inspection.