IEC60227 Copper Conductor PVC Insulated Single Core 1.5mm2 2.5mm2 5mm2  F-CV Cable 3C-4mm2

Specification

PVC Insulation, 600 Volts THW Wire
1. SCOPE
1.1 This specification describes single conductor Rome THW, a general purpose building wire insulated with polyvinyl chloride (PVC) intended for lighting and power circuits at 600 volts or less, in residential, commercial and industrial buildings. The wire may be operated at 75oC maximum continuous conductor temperature in wet or dry locations and is listed by Underwriters Laboratories for use in accordance with Article 310 of the National Electrical Code.
2. APPLICABLE SPECIFICATIONS
2.1 The following specifications form a part of this specification to the extent specified herein:
2.1.1 Underwriters Laboratories Standard 83 for Thermoplastic Insulated Wires.
3. CONDUCTORS
3.1 Conductors shall be solid or Class B stranded, annealed uncoated copper
4. INSULATION
4.1 Each conductor shall be insulated with PVC complying with the physical and electrical requirements for Type THW. 
Standard 83.
4.2 The average thickness of insulation, for a given conductor size, The minimum thickness at any point shall be not less than 90% of the specified average thickness.
The insulation shall be applied tightly to the conductor and shall be free-stripping.