| Customization: | Available |
|---|---|
| Application: | Power Distribution |
| Jacket: | Rubber |
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Application :
THHN / THWN-2 / T90 cables are primarily used for power distribution. The cables may be used in wet or dry locations, with conductor temperatures not exceeding 90°C. Voltage rating for cable is 600V.
Standards :
• UL 83, UL 1685, cUL
• CSA C22.2 No. 75
• 1/0 & larger are rated for CT use
• Requirements of the National Electrical Code
• NEMA WC-70 / ICEA S-95-658
• ASTM B800, B801, B836
• Federal Specification AA-59544
Construction :
CONDUCTORS: Compact bare AA-8000 series aluminum, with Class B stranded per ASTM / Either solid or stranded soft drawn copper, per ASTM Standards.
INSULATION: Low coefficient of friction ("slick"), abrasion, heat and moisture resistant Polyvinyl Chloride (PVC)
JACKET: A clear abrasion, heat, moisture resistant and low coefficient of friction nylon jacket.
THHN wire development aligns with the evolution of electrical wiring. As electricity use increased in the late 19th and early 20th centuries, so did the demand for safe, efficient wiring.
Initially, copper emerged as a prime conductor but needed insulation to prevent oxidation. Early insulations like rubber or cloth had limitations, which led to the adoption of PVC, a thermoplastic, offering superior insulation and heat resistance.
The innovation of adding a nylon coating provided extra mechanical protection and facilitated wire pulling through conduits, marking the birth of modern THHN wire. Its usage has grown alongside electrical system advancements, now spanning residential to industrial applications.
THHN stands for "Thermoplastic High Heat-resistant Nylon-coated." It offers durability, heat resistance, and a smooth surface for easy installation. THHN wire consists of a solid or stranded copper conductor, PVC insulation, and a nylon coating, making it suitable for various electrical wiring applications.
| Component | Material | Function |
|---|---|---|
| Conductor | Copper (Solid or Stranded) | Provides excellent electrical conductivity. |
| Insulation | PVC (Polyvinyl Chloride) | Protects against environmental factors and physical wear. |
| Outer Jacket | Nylon | Enhances durability and eases installation by enabling smooth pulling. |
| Wire Type | Cost | Efficiency | Durability | Applicable Use Cases |
|---|---|---|---|---|
| THHN | Moderate | High | High | Conduits, cable trays, lighting fixtures, heating units, air conditioners, control circuits, machine tools |
| TFFN | Low | Moderate | Moderate | Indoor use, lighting fixtures, control circuits, machine tools (dry locations) |
| UF-B | High | Moderate | High | Direct burial, outdoor lighting, pumps |
| NM-B | Low to Moderate | Moderate | Low to Moderate | Indoor residential wiring (dry locations) |
| XHHW | High | High | High | Wet or dry locations, conduits, raceways for services, feeders, and branch circuit wiring |
| Certification | Organization | Relevance | Standard | Description |
|---|---|---|---|---|
| UL | Underwriter Laboratories | United States | UL 83 | Standards for thermoplastic-insulated wires and cables. Indicates that the THHN wire has passed tests for safety and performance. |
| CSA | Canadian Standards Association | Canada | CSA C22.2 No. 75 | Standards for thermoplastic-insulated wires and cables. Indicates that the THHN wire meets applicable safety and performance standards in Canada. |
| Safety Tips and Precautions | Description |
|---|---|
| Correct Installation | Follow National Electrical Code (NEC) guidelines. Ensure the power is off before working with electrical wiring. |
| Limitations Awareness | Suitable for dry locations (up to 90°C) and wet locations (up to 75°C). Avoid exceeding these limits. |
| Professional Installation | Use appropriate tools and follow safety protocols. |
| Personal Protective Equipment (PPE) | Wear insulated gloves, safety glasses, and flame-resistant clothing. |
| Power Off | Ensure the power is off before working with electrical wiring to prevent electric shock. Use a voltage tester to verify. |
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Since the 1959s, we have been producing cables and gradually expanding our production lines.
In the beginning of 21st century, we officially opened our international business.
At present, our huge product lines can meet all your needs.
Q: I did not find the cable that I need in this page ?
A:lf you didn't find the species of cables you need, please contact us directly, we will reply to you quickly.
Q:What's your minimum order quantity?
A:Normally, it will be 1000 meters.
Q:What's your delivery time?
A:lt is based on the cable type and order quantity. Normally, it takes about18-20days to achieve production.
Q:How to ensure quality ?
A:For any quality problems, we will arrange the technical personnel to solve orreturn the goods as soon as possible, and bear the corresponding customerlosses. And we offer a long-term warranty.
Q:What if the cable which we need have some differences on specifications fromyours?
A: Any difference, we can design and produce according to your requests, which include cable,color.material, processing requirement etc.
We can give you the best service and a warranty of 2 years to ensure the quality of cables.
If you have any questions or inquiry request, please feel free to contact us:
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