Re: Twisted Conductors
Don't forget 310.8(D)
Example from Encore Wire, THWN: Take a look at which ones are SUNLIGHT resistant.
Solid conductors, uncoated copper, per
ASTM B3.
Stranded conductors uncoated copper per
ASTM B3, ASTM B787and ASTM B8.
Conductors Insulation:
Color-coded, Polyvinyl chloride (PVC), heatand
Moisture-resistant, flame-retardant
compound per UL-83 and UL-1063.
Jacket:
A tough, polyamide, outer-nylon covering
per UL-83 and UL-1063.
Features:
Slick, outer-nylon jacket for easy pulling.
VW-1 rated 14 AWG - 1 AWG, 1/0
AWG and larger is rated for CT use. 6
AWG and larger is rated for Sunlight
Resistance in all colors. All sizes are rated
?Gasoline and Oil Resistant II.?
Print Legend:
Conductor Sizes 14 AWG through 10 AWG Solid:
E123774 (SIZE) AWG TYPE THHN OR
THWN-2 GASOLINE AND OIL RESISTANT
II VW-1 600V (UL) OR AWM OR C-(UL)
TYPE T90 NYLON OR TWN 75 FT1
Conductor Sizes 14 AWG through 1 AWG Stranded:
E156879 (SIZE) AWG TYPE MTW OR
THHN OR THWN-2 GASOLINE AND OIL
RESISTANT II VW-1 600V (UL) OR AWM
OR C-(UL) TYPE T90 NYLON OR TWN 75
FT1 DATE/TIME/OPER
Conductor Sizes 1/0 AWG - 500 KCMIL Stranded:
E156879 (SIZE) AWG OR KCMIL TYPE
MTW OR THHN OR THWN-2 GASOLINE
AND OIL RESISTANT II SUNLIGHT
RESISTANT FOR CT USE 600V (UL) OR
C-(UL) TYPE T90 NYLON OR TWN 75 FT1
DATE/TIME/OPER
Conductor Sizes 500 KCMIL - 1000 KCMIL Stranded:
E156879 (SIZE) KCMIL TYPE MTW OR
THHN OR THWN-2 GASOLINE AND OIL
RESISTANT II SUNLIGHT RESISTANT FOR
CT USE 600V (UL)
DATE/TIME/OPER