Types of Wires
● XHHW-2 (Cross-Linked High Heat Water-Resistant Wire):
1.Applications: Suitable for wet and dry locations up to 90°C. Commonly used in conduit and raceways for services, feeders, and branch circuits. Ideal for conduit installations in both residential and commercial buildings where high heat and moisture resistance are required.
2.Construction: XLPE insulated conductor.
3.Key Features: High heat resistance, water resistance, excellent electrical insulation.
● RHH (Rubber or XLPE-Insulated, High Heat-Resistant Wire):
1.Applications: Suitable for dry locations up to 90°C. Commonly used in high-temperature industrial and commercial applications where flexibility and heat resistance are critical.
2.Construction: Rubber or XLPE-insulated conductor.
3.Key Features: High heat resistance, flexibility, suitable for high-temperature environments.
● RHW (Rubber or XLPE-Insulated, Heat- and Water-Resistant Wire):
1.Applications: Suitable for wet or dry locations up to 75°C. Suitable for environments where both heat and water resistance are necessary, such as industrial and commercial settings.
2.Construction: Rubber or XLPE-insulated conductor.
3.Key Features: Heat and water resistance, flexibility, durability in various environments.
● RHW-2 (Rubber or XLPE-Insulated, Heat- and Water-Resistant Wire with Enhanced Temperature Rating):
1.Applications: Suitable for wet or dry locations up to 90°C. Commonly used in industrial and commercial applications. Offers enhanced temperature rating, making it suitable for even more demanding environments.
2.Construction: Rubber or XLPE-insulated conductor.
3.Key Features: Higher temperature rating compared to RHW, heat and water resistance, flexibility.
● USE-2 (Underground Service Entrance Cable):
1.Applications: Suitable for direct burial in wet or dry locations up to 90°C. Commonly used for underground service entrances and branch circuits. Designed for direct burial applications, such as underground service entrance cables, providing reliable performance in buried conditions.
2.Construction: XLPE insulated conductor.
3.Key Features: Direct burial capability, high heat resistance, excellent electrical insulation, durable in underground environments.
Standard
● UL 44
1.Title: Standard for Thermoset-Insulated Wires and Cables.
2.Scope: This safety standard issued by Underwriters Laboratories (UL) covers single-conductor and multi-conductor cables with thermoset insulation, designed for use in electrical circuits at voltages up to 600 V. It includes requirements for various types of thermoset insulation materials, such as rubber, ethylene propylene rubber (EPR), and cross-linked polyethylene (XLPE).
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