RW90 Cable Applications: Where RW90 Cables Are Commonly Used

What Is RW90 Cable?

CSA C22.2 No. 38 defines RW90 as a 90°C rated thermoset insulated copper or aluminum conductor designed for power distribution and industrial wiring in Canada.

RW90 cables are widely used because they provide:

• High heat resistance (90°C rating)

• Excellent moisture resistance

• Strong mechanical performance

• Long service life in demanding environments

RW90 is one of the most commonly used building and industrial wires in the Canadian electrical market.

Main Applications of RW90 Cable

1. Industrial Power Distribution

RW90 cables are widely used in industrial facilities and factories for distributing electrical power to equipment and machinery.

Typical applications include:

• Motor feeders

• Control panels

• Industrial production lines

• Heavy equipment power supply

Because RW90 insulation is made from cross-linked polyethylene (XLPE), it performs well in environments with heat, oil, and moisture.

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2. Commercial Buildings

RW90 is commonly installed in commercial buildings such as:

• Office buildings

• Shopping malls

• Hospitals

• Hotels

In these buildings, RW90 cables are often installed in:

• Electrical rooms

• Cable trays

• Conduits

• Distribution panels

The 90°C temperature rating allows higher ampacity compared to lower temperature rated cables.

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3. Underground and Outdoor Installations

RW90 cables are suitable for wet locations, which makes them ideal for outdoor installations.

Common outdoor uses include:

• Underground duct banks

• Utility service connections

• Exterior lighting systems

• Infrastructure power distribution

Their moisture-resistant insulation ensures reliable operation even in harsh weather conditions.

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4. Power Plants and Energy Facilities

RW90 cables are also used in power generation and energy infrastructure, including:

• Power plants

• Substations

• Renewable energy facilities

• Wind and solar farms

The cable’s high temperature rating and durability make it suitable for demanding energy applications.

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5. Mining and Heavy Industry

In Canada, RW90 cables are frequently used in mining operations and heavy industry, where cables must withstand tough environmental conditions.

Typical mining applications include:

• Pump power supply

• Conveyor systems

• Underground electrical distribution

• Ventilation equipment