Insulation thickness for p2p wiring

I'm searching Farnell for 22AWG stranded wire used for heaters and also some other connections in line level stages. Typical requirement is 6V/600mA, never had problems with wires similar to Tasker C111.
Shops are closed so i have to order something without seeing and touching it, the problem is i spent 2 hours trying to calculate or find diameter of 1 external core from multicore cable. It is pretty clear here, 1,8mm dia for 22AWG core.
https://www.tme.eu/Document/e9b173cef568e662b651ce08f5ffc9af/TAS-C106.pdf
Online shop where i want to buy this wire also carry some other things, if i make sure wire is how i need it i can avoid 2 shippings. Datasheet shows 0,76mm conductor dia and 1,27mm insulation diameter:
http://www.farnell.com/datasheets/1...2Yb963grkGG4pRW2sij6WKAS5e0y6CchoCOtIQAvD_BwE
http://www.farnell.com/datasheets/1...2Yb963grkGG4pRW2sij6WKAS5e0y6CchoCOtIQAvD_BwE

Do i just calculate 1,27+0,76 =2,01mm to get diameter of 1 core with insulation, or am i wrong about it?
 
Should i contact manufacturer? I just can't find diameter for 1 core from this multicore cable despite considering myself very proficient for searching about electronics.
I know there are fancy and what not wires for the same task, but since cheap multicore wires works perfectly well for years when used for heaters and some other connections, i don't see any reason to spend money, waste material and add to global warming 🙂
 
When they say insulation diameter, that should mean the total overall diameter of the wire w/insulation.
So don't add the wire diameter to the insulation diameter.

When they say wall, that's when you add the wire diameter to 2 x the wall thickness to get
the overall diameter of the wire w/insulation.
 
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I buy by insulation voltage rating, and diameter.
Most wiring 300 v wire is adequate. Vacuum tube plate & 3rd & 4th grid require 600 v rated wire.
Vacuum tubes 22 will carry any current but filament. there are circuits with 3 or 4 amps of filament current, a little 18 would not be amiss for that.
Transistor circuits everything up to the base of the VAS can be 28 or 30 ga. I use kynar insulation for that, resistant to solder iron burns. vas through driver base could be 26 ga, multiamp driver output to output transistor bases should be 22 g. Emitter & collector of 60 W amps 22 is fine, for kilowatt PA amp with 15-25 amps speaker current use 18.
Multi strand is more flexible, but 7 strand is usualy okay.
 
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