Multicore Coloured Flex

http://www.centralcables.co.uk/ContactUs.aspx (usual disclaimer)?

Cheers, they seem to have something which might do the job, they're quoting me.
Del

Igus? I found one (Chainflex CF10-05-05) which is 5 core 0.5mm² shielded energy chain cable with white, brown, green, yellow & grey cores (DIN47100 colours).

May be a bit OTT for your application. They prob'ly do some others, but it's a huge catalogue. Think they do custom builds as well .

Hmmmm, the cable they are offering still has a green core... dunno if this will be acceptable down under.
What ever happened to the good old colour code? black, brown, red, orange, yellow... would suit me fine
Del

Ta for the leads guys (see what I did there?)
Whoops, just noticed I said 24v Ac on the OP. I meant 240 v AC.
It's hard to tpye with these furry paws
Del

Well that just raises further questions.

What are each of the cores being used for exactly, as you will need to meet local AS/NZS electrical colour-code and earthing standards (such as AS/NZS 3000) when using wiring for 240VAC (even in a control environment).

Can you describe your application in more detail?

Not casting nasturtiums, and haven't read your standards, but 240Vac wiring is not necessarily the same as mains power wiring. Cable can be rated at 500Vac, but still not suitable for mains power applications.

(Silly example - RG58 co-ax is typically rated at about 600Vac).

Don't know the details about Del's application.

The standard for 5 core cable down here is set for general use as a three phase + N + E power cable (hence the difficulty in finding 5 core without green/yellow earth wire).

Your best bet would be either to use a 6 core cable and terminate off the unused core(s) or use a 5 core cable with a green/yellow earth wire and terminate off the unused green/yellow earth wire. The cost difference is fairly small using a cable with extra cores.

Cables can be custom made but you will (likely) need to order a quantity in km's, which is probably not economical for even a medium-sized project where you will only save a few cents per metre compared to off-the-shelf cable alternatives.

Application is to power a chemical dosing unit for commercial dishwashers. The unit takes about 5VA and has 2 signal connection of 24-240VAC which are virtually no power. The two signal wires have a common too.
E.G

Live, Neutral, Signal1, signal2, common.
No Earth connection is needed as the unit is double insulated.
Del

If you've really only got low-power requirements, something like http://datasheet.octopart.com/86205CY-SL005-Alpha-Wire-datasheet-7380.pdf

may do the trick (Farnell do it). Core colours are black, red, white, geen, orange (page 531 of the master catalogue (big, again) for colour codes).

Being a double insulated appliance you are not allowed to have a green/yellow wire (which is used exclusively for earth circuits).

I struck out with all the NZ cable manufacturers I use although Maser may be able to help you (or point you in the right direction).

Maser

If you get really desperate and the length is short you could pull the green/yellow earth wire out of an available cable. I am not sure what appliance standard you will need to comply with (possibly AS/NZS 60335.1 and AS/NZS 60335.2.5 for dishwashers), but you may be able to just sleave off or cut the green yellow earth wire at the points where it exits the cable (depending on what the standard allows). Again, if you are desprate for a solution.

Del

In Australia it was acceptable to use heat shrink on a cable to change its colour eg put red heat shrink on the green and yellow cable either end to change its colour coding you would just need to check their hasn,t been a change in the wiring regulations

Cheers for the input guys...
I forgot to mention it also needs to be cheap to compete with disgusting simple cheap but totally unreliable AC driven dosing pumps that click clatter and whirr and fail after 10 minutes (synchronous motor like in one of those plug in timers or a 3 way central heating valve... torqueless rubbish which can run in either direction unless fited with a ratchetty thing).
I want to avoid screens and suchlike as installers will contrive to connect it to a live signal or do something lethal with it.
The market is demanding units which don't need opening up for install or set up as the work force is becoming so de-skilled that anything with mains in frightens them. So we end up with 'installers' who call themselves 'engineers' who won't actually go near mains. Chemical reps who don't understand the product and won't even open the box to see what wires are connected where. In fact it's about all abyone can do to change the empty 5L container of chemical when it runs out... I've seen many sites washing their dishes in just hot water!
We also have manufacturers of these huge expensive dish washing machines that don't provide accessible connections for a mains connection to a dosing unit! Historically the machine manufaturer include the dosing unit, that's left to the end user or chemical supplier to provide. Or, if they do include dosing pumps they are the horrible type described earier.
Other than that the industry is entirely rational
Del

You may find that the composite cable you described, Live, Neutral, Signal1, signal2, common, will not be acceptable in Oz due to segregation requirements.

It has to be one cable right?