Cables Bunched?

DONT DO IT! Google Eddy Currents!

Doing this will increse the temperature in the conductoers and cause failures.

Im curious why you would want to do this in the first place.

Get advice from an electrician on installation methods. Engineers have their noses too far up their asses for real life advice about 24V.

Who are you in the first place?

Are you an electrician?

Yes,you can do that if the cables are 3 or 3 1/2 core cables carrying 3 phase AC power supply.

Guest,

Tornado's answer is correct, but its brevity is misleading. From the wording of your post, I assume that these are six separate cables or conductors, not two multi-core cables. I also assume that you are talking about these all going through a single window or opening. If so, there is no inherent problem with bundling them together I1-I1, etc. The problem comes if they are going through separate openings in a magnetic material, such as steel. Then, you would induce eddy currents into the material which would heat it and thus heat the cables, leading to premature failure. If this is the case, slots cut from one hole to the next will make the separate holes appear (magnetically) to be a single hole and the eddy currents will be immaterial. Remember that any time you run cables in parallel, you must ensure that the installation truly divides the current equally between them. This is by making each phase the same material, same length, and same insulation type.

--JMM

Whatch it if he is using metallic Cable Glands! Same precautions and same problems when bunching.

Tornado said simply and if the OP did not get it, he should not be handling the job.

Thanks