3 Phase Motors

[switched on]

hi i have to wire up a few 3hp 5A 3 phase motors and usually use a 3 core swa but is there an alternative cable to use apart from singles?? Thanks for your help in advance

 

[Spudnik]

This any good?

SY Multi Flex Cables - Protected Flexible Cable

 

[Hawk81]

i use sy alot when wiring motors

 

[wattsup]

many industry driven motors have interlocked isolators, where a pair is also used, so when the isolater is in the off posistion the feed is also cut via a contactor

 

[Hawk81]

many industry driven motors have interlocked isolators, where a pair is also used, so when the isolater is in the off posistion the feed is also cut via a contactor

i am a bit confused as to what this has to do with the original post.

 

[Marty48]

why do you want to use another cable???
SY cable seems more expensive and perhaps as difficult to terminate.
In an industrial setting mechanical protection is needed.

 

[mogga]

SY or YY is used as it is less vurenable to vibration than SWA and more flexable on incoming

 

[daveyzadams]

I'm studying my HNC and I'm struggling a bit with motors, does anybody know much about three phase induction motors Cheers, Davey

 

[JD6400]

Depending on the situation of coarse ! But I always prefer to see plastic shrouded armoured copex with swivel , top hat glands for motor connections as it gives good mechanical protection whilst still allowing good flexibility for maintenance and such like . It also means you can easily pull in new singles if ever needed which in turn I also find it a lot easer to connect singles into smaller motors and isolators as opposed to a multi core cable .