Downsizing Cable ?

[Spoon]

Assuming that is the table that details all of the different switching and isolating devices and what they can/can't be used for then I know perfectly well what it says about the subject.

I still won't have MCBs installed as the only means of isolating a machine on my watch though.

Yes mate, that the one.
Fare comment, but for 3 meters of SWA cable then I'm saying it can be used. (within reason)

 

[davesparks]

The length and type of cable is irrelevant!
An mcb is a protective device, an isolator is a means of isolation.

 

[Spoon]

The length and type of cable is irrelevant!
An mcb is a protective device, an isolator is a means of isolation.

What Im saying is that it can be used as an isolator. It all depends on other factors if you want an additional isolator in the circuit nearer to the equipment its feeding.

 

[Darkwood]

For maintenance purposes having a separate isolator that can e locked off in case of fault or servicing on the machine... you can't have a service engineer coming to replace, repair mechanical parts of the drill then be expected to remove the cover of the DB to remove the cable from the mcb... switching off would not be adequate isolation on its own .... if their was a safety protocol in place where the DB was always padlocked and under control of 1 person only then possible argument but really not a situe' to be in in the first place.

Isolator on the wall adjacent to the drill is the common standard practice and allows for correct lockable isolation to any trade that needs to isolate the drill without the need for them to Electrically trained.

 

[davesparks]

What Im saying is that it can be used as an isolator. It all depends on other factors if you want an additional isolator in the circuit nearer to the equipment its feeding.

I never said it can't be used as an isolator.

I said it would not happen on my watch!