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Cable current rating advice

Former Community Member over 3 years ago

Hi all, I would like to verify something with respect to current carrying capacity of cable. Specifically vehicle single core DC circuits.

Looking at 16mm wire not worrying about voltage drop. manufacturers are ratting this at 110A and on a forum I subscribe to people have been advised 125A is ok.

The cable is rated at 70 deg as shown on the suppliers site linked below.

16mm supplier

Am I wright that this comes under

Table 4D1A

Single-core 70°C Thermoplastic Insulated Cables, Non-Armoured, with or without Sheath

Reference Method C (clipped direct) This will be between battery to battery not in any conduit or insulation

So is rated as 87A

I would be interested in your advice as it has been several years since I used these tables

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0 Former Community Member over 3 years ago

Thank you both for some very useful information. The design will actually be 40 amp fused but I wanted to know more about cable rating for vehicle cabling which you have both provided. On a different forum a guy was running 16mm with 80 amp fuse protection which from our conversation here is not good. Especially when they are only using 30 amps load.
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0 Former Community Member over 3 years ago

Thank you both for some very useful information. The design will actually be 40 amp fused but I wanted to know more about cable rating for vehicle cabling which you have both provided. On a different forum a guy was running 16mm with 80 amp fuse protection which from our conversation here is not good. Especially when they are only using 30 amps load.
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Cable current rating advice

Single-core 70°C Thermoplastic Insulated Cables, Non-Armoured, with or without Sheath

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