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Standard:UL83,UL1063,UL66,UL1581

Size: 18AWG-1000kcmil

Voltage: 600V

Construction:

Annealed uncoated copper conductor, PVC insulation,nylon jacket, surface printed.

Underwriters Laboratories Standard 83 for Thermoplastic Insulated Wires .

Underwriters Laboratories Standard 1063 for Machine-Tool Wires and Cables (Stranded items only) .

Underwriters Laboratories Standard 758 for 105°C Appliance Wiring Materials (Stranded items only).

CSA Standard C22 .2 No. 75 and Electrical Bulletin No. 1451 for Type T90 Nylon or TWN75.

Applications:

General purpose wiring in accordance with the National Electrical Code, maximum conductor temperature of 90°C in dry locations and 75°C in wet locations, 600 volts, for installation in conduit or other recognized raceway. Also used for wiring of machine tools (stranded UL1063), appliances, and control circuits not exceeding 600 volts.

• PVC + nylon insulated single conductors as per UL-Styles and NEC standard

Temperature Range as Per Styles
THHN: +90°C/194°F dry - NEC Standard 
THWN: +75°C/+167°F wet - NEC Standard 
AWM: UL-Styles 1316 to 1321
+105°C/+221°F dry, +80°C/+176°F in oil
AWM: UL-Styles 1452, 1453
+90°C/194°F dry, +80°C/+176°F in oil, 1000 V 
MTW: UL-Styles 1408 to 1414
+90°C/194°F dry, +80°C/+176°F in oil, 600 V 

• Nominal Voltage 600 V

Test Voltage (Spark Test)
AWG 14 to 10= 7.5 kV
AWG 8 to 2/0 = 10 kV 
AWG 3/0 to 4/0 = 12.5 kV
kcmil 250 - 500 = 15 kV
kcmil 600 - 1000 = 17.5 kV