car ramp requirements

[Theorysparky]

sorry for the vague title

customer wants a car lift/ramp in his garage

single phase supply and he reckons it is a 13amp supply (that remains to be confirmed)

what is the recommended switching isolation types for this...

thinking of a rotary isolator

but what else would i need if anything

 

[NozSpark]

I'd say that it will need lockable DP isolation with min 3mm gap and the switch will hav e to be suitable for the environment that it's installed in.

So a rotary isolator should be fine

 

[Theorysparky]

Thanks mate

 

[andy_spark]

What about emergency stop buttons linked to contactors? is that applicable or is it all built into the ramps?

 

[ProDave]

Lockable rotary isolator.

But I would be surprised if it's single phase 13A. Most that I have seen are 3 phase 16A feeds with typically a 3 HP motor.

Yes in theory you can get a single phase 3HP motor and that will just about run on 13A, it's unusual.

EDIT

I've never seen one with estops, they all usually have two handed controls, so typically you have to push a lever and press a button, or press two buttons to get them to move.

 

[Theorysparky]

Dave

thats what i thought,,,but this guy has sourced one

we will see

 

[NozSpark]

There aren't usually any e-stops on ramps,, you have to hold the buttons down for the them to operate (up or down)

 

[Andy™]

best find out if its SP or TP first. most are TP

 

[Theorysparky]

I did question him about it to make sure it was single phase

to be fair he does seem to be clued up

we will wait and see !!!!

 

[ProDave]

A friend of mine is in the process of getting planning for two small industrial units. He was asking my advice on specifying the supply requirements.

HE seemed to think that a 16KVA single phase supply would be adequate, and it took me a lot of persuading that he would live to regret not getting a 3 phase supply to an industrial unit.

 

[OnOff]

VERY possible that this is single phase. They are readily available!

 

[Evans Electric]

Quite a small motor on the ones I've done , they often drive a gearbox which works a chain drive to the other post.

As said, rotary isol .

 

[Andy™]

Quite a small motor on the ones I've done , they often drive a gearbox which works a chain drive to the other post.

mostly on 2 post. most 4 post are hydraulic

 

[Sidewinder]

Quite often the starter box with the momentary up/down buttons also has a rotary isolator on it, some do, some dont, most of the small 1/1.5tonne ramps are around 1.1/1.5Kw (I did that just for Sidey :slap ), never seen a single phase one

Just Coz I been quiet!

You can't go sneaking in capital K's where they should not be!

 

[wozz]

Ok then, how do people get to the lift post for connection? Last one I did was a masterful and very time consuming bit of 20mm galv with quite a span.

 

[Andy™]

Ok then, how do people get to the lift post for connection? Last one I did was a masterful and very time consuming bit of 20mm galv with quite a span.

ive used chain between the wall and a post with cable attached, or a chain between a wall and ceiling / other with chain attached and cable drop above the post. or the cable along ceiling and a drop above the post. plenty options

 

[Theorysparky]

chain from ceiling above post is my best option