XHHW and THHN cables are copper or aluminum corrosion-resistant cables widely evaluated in power and control systems, with high temperature resistance, corrosion resistance and other characteristics. They are suitable for different installation environments and needs.
XHHW stands for cross-linked high heat-resistant wire, that is, cross-linked polyethylene high heat-resistant cable, which is commonly used in industrial, commercial and residential power transmission and distribution.
Structural composition:
Extension: Copper extension is usually used, which has good conductivity, and aluminum extension can also be used for some models.
Insulation layer: Cross-linked polyethylene (XLPE) is used as the insulation material. This material has very good high temperature resistance. The heat resistance temperature is generally close to 90°C (under normal conditions), and in some cases it can even withstand higher temperatures.
Outer sheath: According to different application requirements, the outer sheath can be made of PVC, polyethylene and other materials to protect the cable shell from mechanical damage, moisture or chemical corrosion.
Features:
High heat resistance: XHHW cable has excellent high temperature resistance and is suitable for use in high temperature environments.
Fire resistance: Able to withstand high temperatures and have good fire resistance, usually working in an environment of 90°C.
Chemical resistance and corrosion resistance: Cross-linked polyethylene (XLPE) materials can withstand a certain degree of chemical corrosion, so they are suitable for some environments with degrading gases or liquids.
Suitable for humid environments: Can be used in dry environments, suitable for underground power transmission or industrial plants.
Application range:
Power transmission and distribution: used for low-voltage power pipelines such as buildings, industrial facilities, power plants, and power substations.
Base system: used as main power or branch cable in the base system.
Industrial application: suitable for power connection between equipment, especially in occasions where high temperature resistance or chemical corrosion resistance is required.
THHN stands for thermoplastic high heat-resistant nylon coated cable, that is, heat-resistant and heat-resistant coated cable, which is commonly used for low-voltage power transmission in commercial, residential and industrial areas.
Structural composition:
Extension: usually copper extension, there are also aluminum extension options, providing good conductivity.
Insulation layer: Thermoplastic polyvinyl chloride (PVC) is used as the insulation material, which has strong heat resistance and chemical resistance, and the working temperature can reach 90°C (in a dry environment).
Outer sheath: The outer layer of the cable is usually wrapped with a coating to provide additional physical protection, enhance abrasion resistance and tensile resistance.
Features:
High temperature tolerance: THHN cables can withstand high operating temperatures, usually 90°C (in a dry environment).
Good protection: The outer coating increases the cable's anti-friction and chemical resistance mechanical properties.
Fire resistance: It can withstand fire to a certain extent, but does not have complete fire resistance.
Flexible: The cable is relatively soft and easy to bend and operate during installation.
Application range:
Power building system: used for internal electrical wiring of buildings, including power supply of main power supply and branch power supply.
Industrial power transmission: Widely evaluate power systems in industrial facilities, suitable for control, control and transmission.
Mechanical equipment connection: used for power connection between machinery and equipment.
Auxiliary line: suitable for power transmission in auxiliary power networks and systems.
Insulation material: XHHW uses cross-linked polyethylene (XLPE), which has stronger high temperature resistance and chemical resistance; THHN uses heat-resistant PVC insulation material, which also has certain high temperature resistance, but the overall heat resistance is slightly inferior to XHHW.
Temperature resistance level: XHHW cable has lower temperature resistance than THHN and is suitable for higher temperature environments. Outer sheath: THHN cables usually use coatings to increase resistance to mechanical damage and chemical corrosion, while XHHW usually uses more corrosion-resistant PVC or polyethylene outer sheaths.
XHHW cable: Suitable for use in tough environments, with good high temperature resistance, corrosion resistance and chemical resistance, suitable for industrial and underground power transmission.
THHN cable: Mainly used for power wiring inside buildings, with good heat resistance and physical protection, suitable for ordinary residential and commercial power transmission applications.
Standard: CSA LL 82214 ASTM B3 ASTM-B8 ASTM B787 WC70/ICEA S-95-658 AA-59544
| XHH / XHHW-2 | |||||||
| AWG/kcmil | Strand | Nominal Insulation Thickness | Nominal Overall Diameter | Cable Weight | |||
| Inch/mm | Inch/mm | Lbs/kft | kg/km | ||||
| 14 | 1 | 0.03 | 0.76 | 0.124 | 3.15 | 16 | 24 |
| 12 | 1 | 0.03 | 0.76 | 0.141 | 3.58 | 24 | 36 |
| 10 | 1 | 0.03 | 0.76 | 0.162 | 4.11 | 37 | 55 |
| 8 | 1 | 0.045 | 1.14 | 0.218 | 5.55 | 61 | 91 |
| 6 | 1 | 0.045 | 1.14 | 0.252 | 6.4 | 93 | 138 |
| 14 | 7 | 0.03 | 0.76 | 0.133 | 3.37 | 17 | 26 |
| 12 | 7 | 0.03 | 0.76 | 0.152 | 3.85 | 26 | 39 |
| 10 | 7 | 0.03 | 0.76 | 0.176 | 4.46 | 39 | 58 |
| 8 | 7 | 0.045 | 1.14 | 0.236 | 5.99 | 65 | 96 |
| 6 | 7 | 0.045 | 1.14 | 0.274 | 6.95 | 98 | 146 |
| 4 | 19 | 0.045 | 1.14 | 0.316 | 8.04 | 148 | 220 |
| 3 | 19 | 0.045 | 1.14 | 0.344 | 8.75 | 184 | 274 |
| 2 | 19 | 0.045 | 1.14 | 0.376 | 9.54 | 229 | 341 |
| 1 | 19 | 0.045 | 1.14 | 0.431 | 10.94 | 292 | 434 |
| 1/0 | 19 | 0.055 | 1.4 | 0.47 | 11.94 | 364 | 541 |
| 2/0 | 19 | 0.055 | 1.4 | 0.514 | 13.07 | 453 | 674 |
| 3/0 | 19 | 0.055 | 1.4 | 0.564 | 14.33 | 566 | 842 |
| 4/0 | 19 | 0.055 | 1.4 | 0.62 | 15.75 | 708 | 1053 |
| 250 | 37 | 0.065 | 1.65 | 0.706 | 17.93 | 838 | 1247 |
| 300 | 37 | 0.065 | 1.65 | 0.761 | 19.33 | 999 | 1486 |
| 350 | 37 | 0.065 | 1.65 | 0.812 | 20.62 | 1159 | 1725 |
| 400 | 37 | 0.065 | 1.65 | 0.859 | 21.82 | 1319 | 1963 |
| 500 | 37 | 0.065 | 1.65 | 0.945 | 24 | 1639 | 2439 |
| 600 | 61 | 0.08 | 2.03 | 1.053 | 26.75 | 1980 | 2946 |
| 750 | 61 | 0.08 | 2.03 | 1.159 | 29.44 | 2459 | 3660 |
| 1000 | 61 | 0.08 | 2.03 | 1.313 | 33.35 | 3256 | 4845 |
| THHN / THWN-2 / MTW | |||||||||
| AWG or kcmil | Strand | Nominal Insulation thickness | Nominal Jacket thickness | Nominal Overall Diameter | Cable weight | ||||
| Inch/mm | Inch/mm | Inch/mm | Lbs/kft | kg/km | |||||
| 14 | 1 | 0.015 | 0.38 | 0.004 | 0.1 | 0.11 | 2.79 | 15 | 22 |
| 12 | 1 | 0.015 | 0.38 | 0.004 | 0.1 | 0.12 | 3.05 | 23 | 34 |
| 10 | 1 | 0.02 | 0.51 | 0.004 | 0.1 | 0.15 | 3.81 | 37 | 54 |
| 14 | 19 | 0.015 | 0.38 | 0.004 | 0.1 | 0.11 | 2.79 | 16 | 24 |
| 12 | 19 | 0.015 | 0.38 | 0.004 | 0.1 | 0.13 | 3.3 | 24 | 36 |
| 10 | 19 | 0.02 | 0.51 | 0.004 | 0.1 | 0.17 | 4.32 | 39 | 58 |
| 8 | 19 | 0.03 | 0.76 | 0.005 | 0.13 | 0.22 | 5.59 | 63 | 94 |
| 6 | 19 | 0.03 | 0.76 | 0.005 | 0.13 | 0.26 | 6.6 | 98 | 145 |
| 4 | 19 | 0.04 | 1.01 | 0.006 | 0.15 | 0.33 | 8.38 | 157 | 234 |
| 3 | 19 | 0.04 | 1.01 | 0.006 | 0.15 | 0.36 | 9.14 | 193 | 287 |
| 2 | 19 | 0.04 | 1.01 | 0.006 | 0.15 | 0.39 | 9.91 | 240 | 357 |
| 1 | 19 | 0.05 | 1.27 | 0.007 | 0.18 | 0.43 | 10.92 | 300 | 446 |
| 1/0 | 19 | 0.05 | 1.27 | 0.007 | 0.18 | 0.47 | 11.94 | 376 | 560 |
| 2/0 | 19 | 0.05 | 1.27 | 0.007 | 0.18 | 0.52 | 13.21 | 467 | 695 |
| 3/0 | 19 | 0.05 | 1.27 | 0.007 | 0.18 | 0.57 | 14.48 | 581 | 864 |
| 4/0 | 19 | 0.05 | 1.27 | 0.007 | 0.18 | 0.64 | 16.26 | 724 | 1077 |
| 250 | 37 | 0.06 | 1.52 | 0.008 | 0.2 | 0.69 | 17.53 | 855 | 1272 |
| 300 | 37 | 0.06 | 1.52 | 0.008 | 0.2 | 0.76 | 19.3 | 1022 | 1521 |
| 350 | 37 | 0.06 | 1.52 | 0.008 | 0.2 | 0.79 | 20.07 | 1191 | 1772 |
| 400 | 37 | 0.06 | 1.52 | 0.008 | 0.2 | 0.85 | 21.59 | 1345 | 2001 |
| 500 | 37 | 0.06 | 1.52 | 0.008 | 0.2 | 0.94 | 23.88 | 1668 | 2482 |
| 600 | 61 | 0.07 | 1.78 | 0.009 | 0.23 | 1.1 | 27.94 | 1994 | 2967 |
| 750 | 61 | 0.07 | 1.78 | 0.009 | 0.23 | 1.16 | 29.46 | 2465 | 3668 |
Product Introduction: When customers inquire about the product, we will provide a detailed product introduction, including product technical parameters, scope of application, and other information, to help customers better understand the product.
Solution customization: Based on the specific needs of customers, we will provide personalized solution customization services to meet their specific requirements.
Sampling inspection and acceptance: We guarantee that every batch of cables produced undergoes strict factory inspection and acceptance.
Technical support: We will provide a professional technical support team to solve technical problems encountered by customers during product selection and use.
Order tracking: We will establish a comprehensive order tracking system and update customer order status in a timely manner to ensure that customers can keep track of the progress of their orders.
Product training: We will provide customers with product usage training, including product operation methods, maintenance, and other content, to help customers better use the product.
After sales service hotline: We will establish a 24-hour after-sales service hotline to provide customers with 24/7 technical support and service consultation, timely follow up on customers' after-sales service needs, and ensure that customers' problems are resolved in a timely manner.
After sales satisfaction survey: We will conduct regular after-sales satisfaction surveys to understand customer satisfaction with our after-sales service and continuously improve service quality based on customer feedback.The company has the ability to produce 100000 kilometers of various types of wires and cables annually.
