Re: Two cables in one plug ?

In article <v2vGe.6783$SO4.627@xxxxxxxxxxxxxxxxxxxx>, Bob Nixon <bob.nixon@xxxxxxxxxxxx> writes 
We have just had an Full NICEIC electrical test by a newly appointed NICEIC
electrician not a Theatre qualified one whether that is a problem,   He
commented on the fact that one of our LX guys (We are an amateur theatre but
try to be as professional as possible ) has just put in DMX system and in
order that the Demux unit and the dimmer racks will be isolated when mains
is switched off after a performance has put the power lead of the demux into
the same 63 A Plug (system is fused at 32A) to a Pulsar 6 x 10A Dimmer

Would this be really illegal or merely bad practice

He should have failed the system for that.

As the demux presumably has a very small power cable (1.5mm2?) running it from a 32A fuse is a fire hazard as the cable would melt before the fuse would blow.

The demux needs to be tripped or fused at a rating which matches its power cable (probably 5 amp). If the dimmers are in a rack you could put in a panel with a fused spur, wired with 4mm cable to the dimmer power supply.
--
Tim Mitchell
.