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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 |
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. |