Experienced Factory for Thw Wire with Copper Conductor

APPLICATION:
THW wire with copper conductor is generally for wiring of lighting and power – residential,
Commercial, industrial buildings in accordance with the National Electrical
Code, maximum conductor temperature of 75° C in wet or dry locations,
For circuits not exceeding 600 volts

STANDARDS:
1. Listed by UL as Type THW per Standard 83.
2. All sizes carry the VW-1 flame test designation.
3. Listed by UL as Oil Resistant I.
4. Listed by UL as Sunlight Resistant (250 kcmil and larger, black only)
5.250 kcmil and larger pass UL and IEEE-383 ribbon burner flame test
And are listed For CT Use.
6. Conforms to Federal Specification J-C-30B.

CONSTRUCTION:
Annealed uncoated copper conductor, PVC insulation, surface printed.

SPECIFICATION:

1. SCOPE
1.1 This specification describes single conductor THW wire with copper conductor, 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 75° C 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.
2.1. 2 Federal Specification J-C-30B.

3. CONDUCTORS
3.1 Conductors of THW wire shall be solid or Class B stranded, annealed uncoated copper per UL Standard 83.

4. INSULATION
4.1 Each conductor shall be insulated with PVC complying with the physical and electrical requirements of UL Standard 83 for Type THW. In addition, the PVC insulation shall comply with the optional Oil Resistant I listing of UL Standard 83.
4.2 The average thickness of insulation, for a given conductor size, shall be as specified in UL Standard 83 for Type THW wire. 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.

5. IDENTIFICATION
5.1 The wire shall be identified by surface marking indicating manufacturer’s identification, conductor size and metal, voltage rating, UL Symbol, type designation and optional ratings.

6. TESTS
6.1 Wire shall be tested in accordance with the requirements of UL Standard 83 for Type THW wire and for the optional Oil Resistant listing.

7. LABELS
7.1 THW wire with copper conductor shall bear the Underwriters Laboratories label for Type THW.

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Ampacity in accordance with NEC for not more than these conductors in raceway, 750C conductor temperature and 300C ambient in wet or dry locations.