CU R90

600V Copper XLPE Building Wire

PRODUCT DESCRIPTION

CU R90 is a 600V copper building wire designed for commercial, residential, industrial, utility, and infrastructure electrical distribution applications. It features an annealed copper conductor insulated with cross-linked polyethylene (XLPE) thermoset insulation.

The R90 construction is designed for a maximum conductor operating temperature of 90°C in wet and dry locations, providing reliable thermal performance and excellent resistance to moisture, heat aging, and environmental stress.

The copper conductor provides high electrical conductivity, excellent flexibility, and reliable termination characteristics, making CU R90 suitable for a wide range of power distribution and building wiring applications.

APPLICATIONS

CU R90 is suitable for:

• Commercial electrical distribution

• Residential electrical systems

• Industrial power distribution

• Feeder and branch circuits

• Motor circuits

• Equipment power connections

• Switchboards and panelboards

• Conduit and raceway installations

• Cable trays where permitted

• Indoor and outdoor installations

• Wet and dry locations

• Utility and infrastructure projects

• Power generation facilities

• Industrial plants and processing facilities

• Building power distribution systems

• Underground installations where permitted

STANDARDS & COMPLIANCE

Typical reference standards include:

• CSA C22.2 No. 38 – Thermoset-Insulated Wires and Cables

• ASTM B3 – Soft or Annealed Copper Wire

• ASTM B8 – Concentric-Lay-Stranded Copper Conductors

• NFPA 70 / NEC – National Electrical Code, where applicable

Final certification, markings, construction, and allowable installation methods depend on the specific product construction and target market requirements.

CONSTRUCTION

Conductor

• Material: Annealed copper

• Conductor type: Solid or stranded, depending on size

• Stranding: Concentric-lay stranded construction for applicable sizes

• Electrical conductivity: High

• Surface: Smooth and clean for reliable electrical termination

Insulation

• Material: Cross-linked polyethylene (XLPE)

• Insulation type: Thermoset

• Color: Black or other colors upon request

• Voltage rating: 600V

• Maximum operating temperature: 90°C wet/dry

TECHNICAL DATA

TYPICAL AVAILABLE CONDUCTOR SIZES

Other conductor sizes, insulation colors, constructions, and packaging configurations are available upon request.

ELECTRICAL CHARACTERISTICS

CU R90 provides excellent electrical performance through the use of high-conductivity annealed copper conductors.

Key electrical characteristics include:

• High electrical conductivity

• Low conductor resistance

• Excellent current-carrying capability

• Stable electrical performance

• Low voltage drop

• Reliable long-term power transmission

• Excellent compatibility with standard copper-rated termination systems

Actual ampacity shall be determined according to the applicable electrical code, installation method, conductor size, ambient temperature, number of current-carrying conductors, and termination temperature limitations.

THERMAL PERFORMANCE

The 90°C wet/dry rating provides greater installation flexibility for electrical systems exposed to moisture or changing environmental conditions.

MECHANICAL PERFORMANCE

The XLPE thermoset insulation provides:

• Good installation flexibility

• Excellent resistance to cracking

• Good abrasion resistance

• Excellent moisture resistance

• Good resistance to heat aging

• Stable dimensional performance

• Reliable insulation integrity

• Good resistance to normal installation stresses

Stranded copper construction provides enhanced flexibility, particularly for larger conductor sizes and applications requiring easier routing through conduits and raceways.

INSTALLATION

CU R90 may be installed in:

• Conduit systems

• Raceways

• Electrical cabinets

• Switchboards

• Panelboards

• Cable trays where permitted

• Indoor electrical systems

• Outdoor electrical systems

• Wet locations

• Dry locations

• Underground installations where permitted

Installation shall comply with the applicable electrical code and the permitted use of the specific product construction.

Copper-rated connectors, lugs, terminals, and accessories should be selected according to the applicable installation requirements.

KEY FEATURES

• 600V voltage rating

• 90°C wet and dry temperature rating

• XLPE thermoset insulation

• High-conductivity annealed copper conductor

• Excellent electrical conductivity

• Suitable for wet and dry locations

• Excellent moisture resistance

• High thermal stability

• Good mechanical flexibility

• Wide range of conductor sizes

• Suitable for commercial, industrial, and utility applications

PRODUCT ADVANTAGES

High Electrical Conductivity

Copper provides excellent electrical conductivity and low conductor resistance, making CU R90 suitable for efficient power distribution.

90°C Wet/Dry Rating

The R90 construction provides a 90°C maximum conductor operating temperature in both wet and dry locations.

XLPE Thermoset Insulation

Cross-linked polyethylene offers excellent thermal stability, moisture resistance, electrical insulation performance, and long-term durability.

Excellent Installation Flexibility

Stranded copper conductors are easy to route through conduits, raceways, and electrical equipment, particularly in larger conductor sizes.

Reliable Termination

Copper conductors provide excellent compatibility with properly selected copper-rated terminals, lugs, and connectors.

QUALITY CONTROL

Typical production quality controls include:

• Conductor dimensional inspection

• Conductor resistance testing

• Insulation thickness measurement

• Insulation diameter inspection

• High-voltage electrical testing

• Spark testing

• Insulation physical property testing

• Conductor tensile and elongation testing

• Thermal aging evaluation

• Finished wire visual inspection

• Marking verification

• Packaging inspection

Specific testing requirements may vary according to the applicable standard and customer specification.

PACKAGING

Available packaging options may include:

• Wooden reels

• Plywood reels

• Non-returnable reels

• Returnable reels

• Coils for smaller sizes

• Custom-length reels

• Export seaworthy packaging

Reel dimensions, cable lengths, and packaging configurations can be customized according to project requirements.

CUSTOMIZATION

Available options may include:

• Conductor size

• Solid or stranded construction

• Insulation color

• Surface marking

• Printing requirements

• Reel length

• Packaging configuration

• Customer-specific labeling

• Project-specific construction requirements

TECHNICAL SUPPORT

Technical documentation can be provided for project evaluation and procurement, including:

• Technical datasheets

• Product specifications

• Construction drawings

• Dimensional data

• Electrical performance data

• Test reports

• Packing specifications

• Custom technical documentation

FAQ

What is CU R90?

CU R90 is a 600V copper building wire featuring XLPE thermoset insulation and a 90°C maximum conductor operating temperature in both wet and dry locations.

What is the temperature rating of R90?

R90 is typically rated 90°C in both wet and dry locations.

Is CU R90 suitable for wet locations?

Yes. The R90 designation provides a 90°C wet-location rating when the product is manufactured and marked for that application.

What is the difference between R90 and R75?

The primary difference is the conductor operating temperature rating. R90 provides a 90°C rating, while R75 is generally rated 75°C.

Why use copper conductors?

Copper offers high electrical conductivity, low resistance, excellent flexibility, and reliable compatibility with copper-rated electrical termination systems.

Can CU R90 be installed outdoors?

Yes, where the specific product construction and installation method are permitted by the applicable electrical code.

What conductor sizes are available?

CU R90 can be supplied in a broad range of AWG and kcmil sizes, from smaller building-wire conductors to large power-distribution conductors.

Can CU R90 be customized?

Yes. Conductor size, stranding, insulation color, printing, reel length, packaging, and other project-specific requirements can be customized.

SEO INFORMATION

SEO Product Title:
CU R90 600V Copper XLPE Building Wire | 90°C Wet/Dry

Short Description:
CU R90 is a 600V copper building wire with XLPE thermoset insulation, rated 90°C in both wet and dry locations for commercial, industrial, utility, and power distribution applications.

Meta Description:
CU R90 600V copper building wire features XLPE insulation and a 90°C wet/dry rating, providing reliable electrical performance for demanding power distribution applications.

Suggested URL Slug:
cu-r90-600v-copper-xlpe-building-wire

Product Image Title:
CU R90 600V Copper XLPE Building Wire

Image Alt Text:
600V CU R90 copper XLPE building wire rated 90°C for wet and dry electrical installations