1. What is RW90 Wire?
RW90 wire is a high-performance single conductor cable commonly used in Canada and North America, designed to withstand temperatures up to 90°C. Its conductor is typically copper or aluminum, insulated with heat-resistant cross-linked polyethylene (XLPE), meeting CSA C22.2 standards.
Designed for dry and wet environments, RW90 wire offers stable performance and reliable safety, making it ideal for building wiring and industrial power distribution.
2. Detailed RW90 Cable Specifications You Must Know
Understanding the RW90 cable specifications is key to correct selection and application. Key parameters include:
Temperature rating: 90°C maximum operating temperature, ensuring long-term safe use.
Voltage rating: 600V, suitable for general building and industrial power.
Conductor material: Single copper or aluminum conductor (RW90 conductor) providing high conductivity.
Insulation: Durable XLPE material, resistant to heat, moisture, and flame.
Certifications: CSA and UL certified for safety and compliance.
These specs guarantee RW90 wire performs reliably under demanding conditions.
3. Choosing the Right RW90 Conductor
Selecting the proper RW90 conductor is critical for electrical system performance. Copper conductors are favored for their superior conductivity and mechanical strength, while aluminum conductors offer lightweight and cost benefits for larger sizes.
RW90 conductor sizes range from AWG14 to 750 kcmil, accommodating various load requirements. Engineers should consider current capacity, line length, and installation environment for optimal sizing.
4. Best Practices for Installing RW90 Wire in Conduit
RW90 wire in conduit is a common wiring method in commercial and industrial buildings, especially in wet or harsh environments. Conduits provide mechanical protection, waterproofing, and ease of maintenance.
Popular conduit types include EMT, PVC, IMC, and RMC. Installation must comply with local codes like NEC or CEC, controlling fill ratios and bending radius to prevent damage.
Proper conduit installation maximizes RW90 wire's heat and moisture resistance, extending cable lifespan and system safety.
5. Advantages of RW90 Wire
RW90 wire offers significant benefits:
High temperature stability at 90°C operation
Excellent moisture and flame resistance for safety
Strong mechanical and corrosion resistance
Flexible installation, ideal for conduit wiring (rw90 wire in conduit)
Compliance with multiple safety standards
These features make RW90 the preferred choice for building and industrial wiring where safety and durability matter.
6. RW90 Wire Limitations and Important Considerations
Despite its strengths, RW90 wire has some limitations:
Not recommended for direct sunlight exposure without additional protection
Unsuitable for flexible or frequently moved wiring
May require special cables for extreme cold environments
Proper design and adherence to regulations ensure RW90 wire performs optimally.
7. RW90 Wire vs Other Common Wire Types
| Wire Type | Insulation | Temp Rating | Usage Environment | Suitable for Conduit Wiring |
|---|---|---|---|---|
| RW90 | XLPE | 90°C | Dry and wet environments | Yes (rw90 wire in conduit) |
| NMD90 | PVC | 90°C | Dry residential | No |
| THHN/THWN | PVC+Nylon | 75-90°C | US residential/commercial | Yes |
RW90 balances cost and performance, especially suited for indoor and conduit applications.
Dongguan Greater Wire & Cable Co., Ltd. is core competitiveness comes from the high-standard production management and comprehensive certification system that we always adhere to. At present, all our main products have passed multiple international authoritative certifications such as UL, SAA, VDE, CE, TUV, ISO, etc., to ensure that customers have no worries in project execution. We look forward to establishing long-term cooperation with global customers, jointly expanding the market and sharing results. Welcome to contact us to learn about our product catalogs, certification reports and cooperation processes.