What do the little numbers mean in the wiring schematic?

[dgarvin57]

I am looking at the wiring schematic for a B2920 and I see little numbers ranging from 0.85 to 0.5 to 2.0, etc. They appear right next to the wire color. What does these numbers mean? Thanks.

 

[Roadworthy]

The numbers appear to refer to wire size.

 

[PoTreeBoy]

I am looking at the wiring schematic for a B2920 and I see little numbers ranging from 0.85 to 0.5 to 2.0, etc. They appear right next to the wire color. What does these numbers mean? Thanks.

View attachment 48934

That's the wire size, in square mm's I think.

 

[85Hokie]

Is it DIAMETER of wire in MM or Sq MIl's?

I think it is diameter - might be wrong - but as you can see - big difference between

 

[Jim L.]

It's metric wire gauge. Measured in square millimeters.

 

[Dave_eng]

I am with Jim L.

The number is the cross sectional area of the wire measured in square millimeters.

Fusible link wire markings make this fact clear.

Dave

 

[dgarvin57]

That makes sense. The larger the number, the thicker the wire. Thanks.

 

[85Hokie]

That makes sense. The larger the number, the thicker the wire. Thanks.

That is true in metric ..... were as SAE - it is a$$ backwards ..... like shotguns.... smaller GAUGE means bigger

 

[Russell King]

That is true in metric ..... were as SAE - it is a$$ backwards ..... like shotguns.... smaller GAUGE means bigger

If you think of “gauge” as “how many times did it get rolled thinner” it makes good sense. So 2 gauge (twice through rollers) is thicker than 10 gauge (10 times through rollers).

 

[GreensvilleJay]

If you want real bass-ackwards the Metric 'equal' to MPG is L/100Km !!! But it's not, it's TOTALLY different...