International standards winding 0.6 mm enamelled copper wire is coated with a sort of enamel that is very tough, an excellent insulator, which is different in different standards, like the 0.6mm conversion to 23SWG or 0.02 inches. 

What are the standards for magnet wire? 
Enamelled Copper Winding Wires for Electrical. 
Magnet wire is governed by various standards, but the most often used standards, for both copper and aluminum, in the industry are (IEC) International Electro technical Commission, (JIS) Japanese Industrial Standards, (NEMA) National Electrical Manufacturers Association. UL is an international certifying agency.

What is copper wire 0.6mm?Looking for copper wire 0.6mm? 
Made of high quality copper wire material, durable and long service life. The copper wire is soft and flexible, easy to bend, can be bent into any shape. The wire connector is made of high quality copper wire. High quality metal tinned copper wire, good insulation and anticorrosion performance.

23AWG 0.6mm 1UEW155 / 180 Magnetic Wire Enameled Copper Wire
Features and benefits
HIgh tensile strength. 25% higher than copper wire
Good bending strength
High conductivity. >93%IACS
Excellent solderability,
Excellent audio property.

	Characteristics			Technical request		Test Results						Conclusion
						Sample 1		Sample 2		Sample 3
1	Surface			Good		OK		OK		OK		OK
2	Conductor diameter			0.600±	0.005	0.600		0.600		0.600		OK
					0.005
3	Coating thickness			≥ 0.048 mm		0.0520		0.0530		0.0520		OK
4	Overall diameter			≤ 0.661 mm		0.6520		0.6530		0.6520		OK
5	Conductor resistance			≤ 0.0620 Ω/m		0.0616		0.0615		0.0617		OK
6	Elongation			≥ 28 %		31		30		31		OK
7	Breakdown voltage			≥ 4300 V		5682		5853		5858		OK
8	Pinhole test			≤ 3 faults/5m		0		0		0		OK
Remark:
		Test Items	Technical Requests				Results		Conclusion:Approved
1		Adhesive	Coating layer is good				OK
2		Cut-through	200℃ 2mins no breakdown				OK
3		Heat Shock	175±5℃/30min no crack				OK
4		Solder Ability	390± 5℃ 2Sec Smooth				OK
5		Solvent Resistanc	No blister, no expansion, no shed				OK

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