What is the difference between XHHW and XHHW-2?
THHN/THWN-2 is a thermoplastic product, while XHHW-2 features thermoset insulation….HOW TO KNOW THE DIFFERENCE.
| THHN/THWN-2: | XHHW-2: |
|---|---|
| T = Thermoplastic | X = Cross-Linked Polyethylene (XLPE) |
| HH = High Heat Resistant | HH = High Heat Resistant |
| W = Water Resistant | W = Water Resistant |
| N = Nylon Jacket | (Not Required) |
What is XHHW-2 wire used for?
XHHW-2 wire is the next generation XHHW wire. While its main use is for residential, commercial and industrial buildings, it is also used in raceways, feeder and circuit wiring. XHHW-2 is approved for use up to 600V and is UL Listed for 90° C (194° F), in both dry and wet locations.
What is the cross sectional area of a 500 Kcmil?
0.7073 sq in
500 kcmil THHN = 0.7073 sq in.
What is the OD of 12/3 SO cord?
0.660″
(3) 10 AWG Conductors, SO/SOOW type, Copper Conductor, Stranded, Carolprene Jacket, Excellent Resistance to Oil and Moisture, Black, Rated up to 90°C, 600V, HD, O.D.: 0.660″.
Is XHHW better than Thhn?
Even though its jacket is thicker and more protective, XHHW is also more flexible than THHN wire. The XLPE insulation of the XHHW allows the cable to bend and flex better than the THHN’s PVC insulation—so XHHW is much easier to work with during the installation process.
Where is XHHW used?
XHHW Wire Overview Wires with XHHW insulation are commonly used in the alternating current (AC) electrical distribution systems of commercial, institutional, and industrial buildings and installations, usually at voltage levels (potential difference or electromotive force) ranging from 110-600 Volts.
What does MCM wire mean?
thousands of circular mils
MCM is an abbreviation for thousands of circular mils, an old measurement of wire gauge. 1 MCM = 1 kcmil = 0.5067 square milimeters. A mil is 1/1000 inch. Most wire uses AWG. MCM is also used for “million cubic meters.”
How do you calculate CMA on a wire?
Page 1
- Wire Sizes.
- HOW TO COMPUTE CIRCULAR MIL AREA OF (CMA) OF VARIOUS SHAPES OF WIRE. Round Solid Wire AWG.
- x.
- D x D = CMA.
- Dia. Dia.
- Multiply the diameter in Mils by itself. CMA = D2. Multiply the diameter of one strand (in mils) by itself, and then multiply the result by the total number of strands.
- WIRE SIZES.
- D. D.
What is the diameter of 12 gauge wire?
0.0808
AWG Metric Conversion Chart (AWG to mm)
| American Wire Gauge (AWG) | Diameter (in) | Diameter (mm) |
|---|---|---|
| 12 | 0.0808 | 2.05 |
| 13 | 0.0720 | 1.83 |
| 14 | 0.0641 | 1.63 |
| 15 | 0.0571 | 1.45 |
Can I use XHHW in underground conduit?
Registered. You can’t run type SE cable underground. You don’t have any problem running individual XHHW conductors in PVC underground.
Is XHHW-2 UV rated?
Type XHHW-2 conductors are primarily used in conduit or other recognized raceways for services, feeders, and branch circuit wiring, as specified in the National Electric Code (NEC). XHHW-2 conductors are rated for 600 volts. Insulation rated for use to -40oC (UL).