CU RHH

600V Copper XLPE Building Wire

PRODUCT DESCRIPTION

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

The RHH construction provides a maximum conductor operating temperature of 90°C in dry locations. The XLPE insulation offers excellent thermal stability, electrical insulation performance, moisture resistance, and resistance to heat aging.

With the high conductivity and mechanical reliability of copper conductors, CU RHH provides a dependable solution for feeders, branch circuits, equipment connections, power distribution systems, and other electrical installations where a 90°C dry-location conductor is permitted.

APPLICATIONS

CU RHH is suitable for:

• Commercial electrical distribution

• Residential electrical systems

• Industrial power distribution

• Feeder circuits

• Branch circuits

• Motor and equipment circuits

• Switchboards and panelboards

• Electrical cabinets

• Conduit and raceway installations

• Cable trays where permitted

• Power generation facilities

• Utility and infrastructure projects

• Industrial plants

• Building electrical systems

• Dry-location power distribution

• Equipment and machinery wiring

STANDARDS & COMPLIANCE

Typical reference standards include:

• UL 44 – 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

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 dry

TECHNICAL DATA

TYPICAL AVAILABLE CONDUCTOR SIZES

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

ELECTRICAL CHARACTERISTICS

CU RHH provides excellent electrical performance through its high-conductivity annealed copper conductor.

Key electrical characteristics include:

• High electrical conductivity

• Low conductor resistance

• Reliable current transmission

• Stable electrical performance

• Low voltage drop

• Excellent insulation resistance

• Consistent long-term electrical performance

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

CU RHH is intended primarily for dry-location applications. Where wet-location installation is required, an appropriately rated construction such as RHW-2 or RHH/RHW-2 may be selected according to the applicable product marking and code requirements.

MECHANICAL PERFORMANCE

The XLPE thermoset insulation provides:

• Good flexibility

• Excellent resistance to cracking

• Good abrasion resistance

• High thermal stability

• Good resistance to heat aging

• Stable dimensional performance

• Reliable insulation integrity

• Good resistance to normal installation stresses

Stranded copper construction provides improved flexibility and facilitates routing through conduits, raceways, and electrical equipment.

INSTALLATION

CU RHH may be installed in:

• Conduit systems

• Raceways

• Electrical cabinets

• Switchboards

• Panelboards

• Cable trays where permitted

• Indoor electrical systems

• Dry-location equipment wiring

• Industrial electrical systems

• Power distribution systems

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

CU RHH should not be used in wet locations unless the specific product is additionally marked and approved for wet-location use.

KEY FEATURES

• 600V voltage rating

• 90°C dry-location temperature rating

• XLPE thermoset insulation

• High-conductivity copper conductor

• Excellent electrical conductivity

• Good thermal stability

• Good mechanical flexibility

• Excellent insulation performance

• Wide range of conductor sizes

• Suitable for commercial and industrial power distribution

PRODUCT ADVANTAGES

High Electrical Conductivity

Copper conductors provide excellent electrical conductivity and low resistance, supporting efficient power transmission.

90°C Dry Rating

The RHH construction provides a maximum conductor operating temperature of 90°C in dry locations.

XLPE Thermoset Insulation

XLPE provides strong thermal stability, excellent electrical insulation, and resistance to heat aging.

Flexible Installation

Stranded copper conductors offer good flexibility for routing through conduits, raceways, switchboards, and electrical equipment.

Reliable Electrical Performance

The combination of high-conductivity copper and thermoset XLPE insulation provides stable performance for demanding electrical distribution applications.

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 RHH?

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

What is the temperature rating of RHH?

RHH is typically rated 90°C in dry locations.

Is CU RHH suitable for wet locations?

Standard RHH is primarily intended for dry locations. Wet-location use requires a product construction specifically marked and approved for wet locations.

What is the difference between RHH and RHW-2?

RHH is typically rated 90°C in dry locations, while RHW-2 provides a 90°C rating in both wet and dry locations.

What is the difference between RHH and R90?

RHH and R90 can both use XLPE thermoset insulation and provide a 90°C dry rating, but their designation and applicable standards depend on the specific product construction and certification system.

Why use copper conductors?

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

Can CU RHH be installed outdoors?

Only where the specific construction and installation method are permitted for the application. Standard RHH should not be assumed to be wet-location rated.

What sizes are available?

CU RHH can be supplied in a broad range of AWG and kcmil sizes, including both smaller building-wire sizes and large power-distribution conductors.

SEO INFORMATION

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

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

Meta Description:
CU RHH 600V copper XLPE building wire features a 90°C dry-location rating and high-conductivity copper construction for reliable electrical power distribution.

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

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600V CU RHH copper XLPE insulated building wire rated 90°C for dry electrical installations