Plant machinery

[newcastle phill]

Hi all.
First post here and a serious question regarding electrical testing after work.

In particular testing machinery in a factory after work.

A friend works in a factory where they have a few 440v machines.
The maintenance bloke there has no electrical qualifications and a few times the machines have required repairing after breakdown.

Sometimes mechanical and often electrical.
He is clueless and for example has had the 440v cabinet on the back of the machine open with the dead mans isolating handle twisted back on with a pair of mole grips and the door propped open while he hits the relays with a piece of wood. So the machines energised and live with the huge 5 foot cabinet open. Working live

Also after swapping motors out and making wiring good to suit he just switches it all back on and if it works - then its safe as far as hes concerned.

So...

What electrical tests should he be carrying out after work.
As it is in a factory hsaw, puwer, eawr all apply.
And what meter should he be using if any.
I.e a mega etc.

Or is he totally exemt from testing as its a bespoke plant machine

Thanks in advance. Please no guessing as there is a process of an hse complaint going in and need some factual advice from experienced personell with a similar responsibility

 

[newcastle phill]

Well if you are qualified thats all good and well. But what if you dont have the training to spot a fault coupled with no test equipment.

I was expecting some to chime in regarding perhaps mandatory test after work is complete ??

 

[rapparee]

BS EN 60204 covers this

18. 7 Retesting
Where a portion of the machine and its associated equipment is changed or modified, that portion shall be reverified and retested, as appropriate (see 18.1).
Particular attention should be given to the possible adverse effects that retesting can have on the equipment (for example overstressing of insulation, disconnection/reconnection of devices)