This specification describes single conductor THWN or THHN, a general purpose building wire insulated

with polyvinyl chloride (PVC) and covered with a tough protective sheath of nylon intended for lighting and power

circuits at 600 Volts or less, in residential, commercial and industrial buildings. The wire may be operated at 90°C

maximum continuous temperature in dry locations and 75°C in wet locations and is listed by Underwriters Laboratories
Fixed wiring,civil power,mobile equipment


Conductor type:

IEC 60228-2004 class 1 or class 2.

Nominal Cross-section area: 0.5~400mm2

We can according to our client’s need and also provide technical data

Conductor type:flexible,standed or soild (class 1, 2, 5, and 6)


Rated Voltage:

450/750V More-than 1.5mm2 single core conductor

300/500V Less-than 1.5mm2 single core and multicore conductor

300/300VLess-than 1.5mm2 multicore conductor

Test Voltage:

AC 1500V/5Min for 0.5~1mm2 multicore conductor

AC 2000V/5Min for 0.5~1mm2 single core and multicore conductor

AC 2500V/5Min Other.

Color of Insulation:

Red、Yellow、Green、Light blue、White、Black、Grey、Brown、Orange、Violet、Yellow/Green.


Ambient temperature for insulation shall not be lower than 0℃.

At nominal conditions, the conductor’s operating temperature is -15℃ to +70℃

Fire resistant wire conform to IEC 60331-2009, Flame resistant wire conform to IEC 60332-2004.