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Mixing 22 and 24 AWG within same layer

Practical Motorsport Wiring - Professional Level

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Hi!

I am wondering if it is acceptable to mix 22 and 24 AWG, within the same layer (ratio of 2-1)? If yes, is this a common practice, or rather unwanted/unpopular one.

The difference in diameter relative to the mean diameter is 15%. But even the dummy fillers do not perfectly match the wire gauges. So is there a rule to follow specifying how big the difference in diameter is acceptable? Do You know of any standard prohibiting this?

I've checked the TE ELE-3COP-256, MIL-STD-339 and IPC/WHMA-A-A620E. Those standards do not state anywhere that it is prohibited to mix gauges within a layer. The TE document even states the following: "small wires may be laid together in groups to approximate the size of the larger wires...", which implicates that the diameter of the small wire group do not have to match the diameter of the larger wires exactly.

Mixing those would spare me of 1x additional layer and approximately 40x fillers through a segment.

I've made a mockup (see attached pictures) and it's really hard to see there are two gauges, it's mechanically sound too. I've bend it hard for a while - the layer remains round and stable, no crossovers, no gaps, no loose wires.

Appreciate Your evaluation.

Best regards,

Damian.

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