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BUILDING WIRE



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Application QINGZHOU QINGZHOU THHN or THWN-2 conductors […]



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Application

QINGZHOU QINGZHOU THHN or THWN-2 conductors are primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications as specified in the National Electrical Code. Voltage for all applications is 600 volts. QINGZHOU THHN conductors are designed to be used without application of pulling lubricant. Allowable temperatures are as follows:

• THHN or T90 Nylon- Dry locations not to exceed 90° C

THWN-2- Wet or dry locations not to exceed 90° C or locations not to exceed 75° C when exposed to oil

• TWN75- Wet locations not to exceed 75° C

• MTW- Wet locations or when exposed to oil at temperatures not to exceed 60° C or dry locations not to exceed 90° C (with ampacity limited to that for 75° C conductor temperature per NFPA 79)

• AWM- Dry locations not to exceed 105° C when rated and used as appliance wiring material

Specifications

· ASTM – All applicable standards

· UL Standard 83, 1581, and 1063(MTW)

· T90 Nylon/TWN75 sizes through 1000 kcmil CSA C22.2 No. 75

· NOM-ANCE 90° C

· Federal Specification A-A-59544

· National Electrical Code, NFPA 70

· VW-1 – Sizes 14 through 1 AWG

· CT rated in sizes 1/0 AWG and larger

· FT1

· AWM – Sizes 14 through 6 AWG. MTW available in stranded only

· NEMA WC-70 Construction Requirements

· RoHS/REACH Compliant

Construction

THHN or THWN-2 or MTW copper conductors are annealed (soft) copper strand, insulated with a tough

heat and moisture resistant poly vinyl chloride (PVC), over which a nylon or UL Recognized equal jacket is applied. Available in black, white, red, blue, purple, green, yellow, orange, brown and gray. Some colors are subject to economic order quantity.Marked sunlight resistant in sizes 2 AWG and larger. THWN sizes 14 -10 AWG. THWN-2 sizes 8 and larger.

0.6 Kv. Copper Conductor Thermoplastic Insulation cable

Conductor Insulation Thickness (mils) Jacket Thickness (mils) Nominal O.D. (mils) Approx. Weight per 1000' (lbs) Allowable Ampacities+  
Size (AWG or kcmil) Number of Strands         60º C 75º C 90º C Standard Package
14* 1 15 4 102 15 15 15 15 AC
12* 1 15 4 119 23 20 20 20 AC
10* 1 20 4 150 36 30 30 30 AC
14* 19 15 4 109 16 15 15 15 AC
12* 19 15 4 128 24 20 20 20 AC
10* 19 20 4 161 38 30 30 30 AC
8 19 30 5 213 63 40 50 55 ABCD
6 19 30 5 249 95 55 65 75 ABCD
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0.6 Kv. Copper Conductor Thermoplastic Insulation cable

Conductor Insulation Thickness (mils) Jacket Thickness (mils) Nominal O.D. (mils) Approx. Weight per 1000' (lbs) Allowable Ampacities+  
Size (AWG or kcmil) Number of Strands         60º C 75º C 90º C Standard Package
4 19 40 6 318 152 70 85 100 ABCD
3 19 40 6 346 189 85 100 115 ABCD
2 19 40 6 378 234 95 115 130 ABCD
1 19 50 7 435 299 110 130 145 ABCD
1/0 19 50 7 474 372 125 150 170 ABCD
2/0 19 50 7 518 462 145 175 195 ABCD
3/0 19 50 7 568 575 165 200 225 ABCD
4/0 19 50 7 624 718 195 230 260 ABCD
250 37 60 8 694 851 215 255 290 ABCD
300 37 60 8 747 1012 240 285 320 ABC
350 37 60 8 797 1174 260 310 350 ABC
400 37 60 8 842 1334 280 335 380 ABC
500 37 60 8 926 1655 320 380 430 ABCD
600 61 70 9 1024 1987 350 420 475 ABC
750 61 70 9 1126 2464 400 475 535 BC
1000 61 70 9 1275 3257 455 545 615 C
* Sizes 14 – 10 AWG available with patented Sim Technology® No Lube® jacket only in QINGZHOU® Wire Barrel configurations. Standard Package:
+Allowable ampacities shown are for general use as specified by the 2011 Edition of the National Electrical Code Section   A – 2500' Reel
310.15 and 240.4(D). Unless the equipment is marked for use at higher temperatures the conductor shall be limited to the B – 1000' Reel
following per NEC 110.14(C). C – 500' Spool
60° C – When terminated to equipment for circuits rated 100 ampers or less or marked for 14 – 1 AWG conductors. D – 5000' Reel
75° C – When terminated to equipment for circuits rated over 100 ampers or marked for conductors larger than1 AWG.  
90° C – THHN dry locations and THWN wet or dry locations for ampacity adjustment purposes using NEC section 310.15.  
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