Flexible Conduit For Pulling Through Cables

[n30_mkii]

I'm about to plasterboard my garage which has the main consumer unit. Before I do, I've purchased some flexibile conduit from my local electrical merchant, its the plastic ribbed stuff. The idea was to install it as with a draw string for pulling cables through down the line to certain key locations. I've installed it, but there's simply too much friction that even a piece of string becomes impossible to pull through over a 5m length with no crazy bends. Tried with some smooth cat6 and same thing. Is it possible to get a smooth internal version for this purpose as the corregated stuff isn't going to work.

Thanks

 

[n30_mkii]

I think the stuff I've brought must be pretty crap as I can't pull either of the cable or string though it. I'm familiar with pull strings as Ive done a fair amount of similar stuff when I did some data center type work many moons ago. I've just never hit this kind of resistance on a run, and I've never used this flexible conduit before.

 

[n30_mkii]

If it's not too late pull out the tube you have and use sink waste pipe with swept bends. you could also put in tee pieces for future use
I would also use nylon string as it has less resistance when pulling things through. I am not talking string you use on parcels but much bigger diam.
Also when pulling cables through don't forget to put a new draw rope in as well for next time.
A set of electricians rods might come in handy.
If all elso fails tie some string to a big sandwich bag with handles - stuff bag in pipe then go to the other end and plug your vacuum cleaner to the pipe it should suck it through.

4mm White Drawstring Braided Cord x 10 metres

4mm Polypropeleyne White Drawstring Braided cord x 10 meters.

www.webfittings.co.uk

PS what diam is this conduit?

20mm

 

[n30_mkii]

Thanks I'll take a look at smooth pipework and lubricant