Im trying to do a couple of repairs to my loom as a short term measure until i can buy a new one.

Ive got a copy of Escos wiring diagrams so i can sort out refitting the lecktron wiring thats been cut off, so i know where the wires got to go, but im trying to find out the correct grade of wire.

Now on newer car wiring diagrams you get this:

It tells you in the diagram the decode for the wiring type so you know the circuit type, as well as the wire size eg 0.5mm2 in this example.

now the escos diagrams show this:

now the first couple numbers look like circuit designators and the last groups of letters are wire colours, but whats the numbers in the middle???

Im hoping its wire size related. Also the shielding in the right is that just simply earthed shielding and i presume its integrated shielded wire you can buy??

any ideas?? obviously theres no point me repairing with the wrong rating wire and if i fuck up shielding then the ECU wont be too impressed either!!!