
• Conductor: Ground Conductor and Copper Conductor
• Insulation: PVC / Nylon Insulation
• Jacket: PVC Jacket
• Voltage: 300 volts
• ASTM
• CSA C22.2 No. 48 (non-metallic sheathed cable)
• Canadian Electrical Code
• CSA FT1 Flame Test Rating
Application
NWMU cable (Non-Metallic Wet Underground Cable) is suitable for a variety of electrical installation environments and has a wide range of applications. It can be used for underground installation, including direct burial, and is an ideal cable designed for underground power transmission and electrical equipment connection. NWMU cable is also suitable for use in dry and wet environments exposed to weather, and can effectively resist external environmental factors such as moisture, rain, solar radiation, etc., so it is widely used in outdoor lighting, electrical access systems and other places that need to be used under severe weather conditions.

Feature

NMWU solid copper wire is a cable suitable for wet and underground environments. It uses annealed (soft) copper conductors, which are compacted to enhance conductivity and provide higher flexibility, making it suitable for complex installation environments. The phase conductors of the cable are made of heat-resistant thermoplastic polyvinyl chloride (PVC) insulation material, which has good electrical insulation and heat resistance, ensuring that the cable works normally in high temperature and humid environments. The outer layer of the cable is covered with a nylon sheath, which further enhances the protection from the external environment, especially when exposed to sunlight, moisture, and mold.
Certification
NMWU solid copper wire is UL (Underwriters Laboratories) and CUL (Canadian Underwriters Laboratories) certified, which meets strict safety standards and electrical performance requirements, marking the legality and reliability of NMWU cables in the US and Canadian markets. The cables meet the safety requirements of the National Electrical Code (NEC) of the United States, especially for applications in wet and underground environments. UL certification ensures that NMWU cables are moisture-resistant, durable, and fire-resistant, and are suitable for direct burial or exposed installations.

Package

Factory

Greater Wire Manufacturer's state-of-the-art cable factory features an intelligent and digital manufacturing environment. The shift to digital manufacturing not only improves efficiency but also strives to provide customers with the highest reliability products. The smart factory framework ensures a streamlined and error-free production process, minimizes the possibility of human variance, and increases precision that was previously unattainable. The factory strictly adheres to quality control through precise and automated inspection mechanisms. From the beginning to the final stage of the manufacturing process, products are thoroughly inspected. The commitment to quality extends to our inspection accuracy, with automated production equipment achieving an accuracy of 0.002 mm.
Case

Partner

FAQ
Q: What is NMWu wire?
Non-Metallic: The wire has a non-metallic outer sheath, which provides protection from moisture and environmental factors.
Wet and Dry Conditions: The wire is suitable for both wet and dry conditions, which makes it ideal for use in outdoor, underground, or other environments that may experience exposure to moisture.
Direct Burial: NMWU cables can be buried directly in the ground without requiring additional conduit, as they are designed to withstand exposure to moisture and environmental stress.
Q: Can you direct bury an NMWu wire?
Q: Can NMWU be exposed?
Make sure the wire will not be subjected to mechanical stress and install it in an area that complies with local electrical codes for exposed wires in wet locations.
If you are unsure, it is best to check local electrical codes or consult a licensed electrician and contact us to ensure compliance and safety.
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| Conductor | Insulation Thickness | Approximate Jacket Thickness | Allowable Ampacities 30℃ Ambient | ||||
| Size(AWG) | Number of Conductors | Numbers of Strands | Inches | mm | inches | mm | |
| 14 | 2 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 25* |
| 12 | 2 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 30* |
| 10 | 2 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 40* |
| 8 | 2 | 7 | 0.04 | 1.02 | 0.045 | 1.14 | 55 |
| 6 | 2 | 7 | 0.051 | 1.3 | 0.045 | 1.14 | 75 |
| 14 | 3 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 25* |
| 12 | 3 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 30* |
| 10 | 3 | 1 | 0.034 | 0.86 | 0.03 | 0.76 | 40* |
| 8 | 3 | 7 | 0.04 | 1.02 | 0.045 | 1.14 | 55 |
| 6 | 3 | 7 | 0.051 | 1.3 | 0.045 | 1.14 | 75 |
| 3 | 3 | 7 | 0.051 | 1.3 | 0.08 | 2.03 | 115 |





























