Lift Supply

[RJS Contracts]

Hi guys

Just looking at a job where I have to put a supply in for a lift. ~It is a 3 phase supply and specifying 66 amps start up and 22 amps running. Any idea what cable you would use. Was going to do it in SWA 4 core and run separate earth.

Any thoughts appreciated

 

[bugsy]

Lift companies are a nightmere, we normally ask them to provide specific requirements as their engineers have their own ideas on actual demand.also depends on the run length etc etc

 

[RJS Contracts]

Spec is 415v 3ph neutral and earth
Start current 66amps/ph
run current 22 amps/ph

Thats all the info they have giving me.

Max run would be 10m

 

[bugsy]

Play safe and install 10mm 4c SWA and Sep.CPC

 

[RJS Contracts]

as I thought. What mcb would you use. They have stated that a 3 phase d type mcb will be in their control panel but no rating!!

 

[m4tty]

sorry to butt in on your thread rjs but why run a seperate earth wont the armour csa be big enough?

Im trying to learn here btw not picking cheers

 

[bugsy]

32a type d , dont be supprised if they ask you to do the lift shaft lighting & maintenance sockets in the pit as well

sorry to butt in on your thread rjs but why run a seperate earth wont the armour csa be big enough?

Im trying to learn here btw not picking cheers

Lift engineers are a weird bunch matty and some insist on seperate cpc some don't .

 

[RJS Contracts]

Cool cheers bugsy. Havent seen anything on spec apart from emergency light to 50 lux on each floor

 

[benji]

Iv,e done quite a few and the supplies had to come from main section board some of them 150mtr runs.The lift company should tell you exactly where in the shaft the isolator/ socket should be fitted.

yours benji

 

[RJS Contracts]

Only pricing at the mo benji and the meter cupboard is next to the lift shaft so would of thought 10/15m should do it!l

 

[chris gray]

just to stand up for some lift engineers (im not one) we did a couple last year, one at term2 heathrow and 1 at the olympics hq. the lift lads couldnt of been more helpful if they wanted.