NEW PRODUCTS: THHN AND THWN-2 . CIVIL WIRE

04:47, 12/06/2023
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In addition to the traditional products that CADIVI is providing, grasping the market's demand towards a product line with more outstanding features, safety and environmental friendliness, CADIVI has researched and released a product line. THHN and THWN-2 single-core residential cords, which are designed and manufactured in accordance with safety standards, meet the stringent requirements of UL 83 and comply with design code requirements, installation of the NEC-NFPA electrical network. Helping customers have more choices in the domestic market as well as exporting to foreign markets.

The electrical cable market in the US along with some countries is limited by technical barriers established by UL (Underwriters Laboratories) and NEC-NFPA (National Electric Code). UL is an independent organization responsible for certifying the safety of products circulating in the United States. NEC-NFPA is the author of the set of safety rules for electrical network construction and fire safety applied in the US.

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UL and NEC-NFPA have established a series of rigorous safety standards and regulations for electrical cables, including testing for fire resistance, flame retardant, load capacity, heat resistance, water resistance and many more. Other requirements. These standards and regulations ensure that electrical cable products meet US safety requirements.

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Not only products meet UL requirements, but CADIVI electrical cable manufacturers must also meet the requirements of production facilities and quality control laboratories according to US standards to ensure quality consistency. for product.

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Both THHN and THWN-2 have good heat resistance properties and are capable of working in harsh environments:

THHN (Thermoplastic High Heat-resistant Nylon-coated): designed with a maximum conductor working temperature of up to 90oC, installed in a dry place.

THWN-2 (Thermoplastic Heat and Water-resistant Nylon-coated): designed with a maximum conductor working temperature of up to 90oC, installed in wet, wet as well as dry places.

THWN-2 is the upgraded specification of THWN product code (maximum conductor working temperature up to 75oC, can be installed in wet, wet as well as dry places).

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OTHER FEATURES AND CHARACTERISTICS OF THESE PRODUCTS:

Special PVC coated insulators with improved specification make them operate at high temperature class up to 90oC compared to conventional PVC wire products which only operate at temperature class up to 70oC-75oC .
Outer protective nylon sheath. Nylon has high mechanical strength, the nylon surface is smooth, resistant to abrasion, tearing due to collisions and impacts, making it easier to pull and install ropes in complex terrain. .
Resistant to termite infestation
Slow to spread fire according to US standards VW-1
Withstands extreme operating temperatures up to -40oC.
Resistant to chemicals, grease, solvents.
Withstands the impact of erratic rain and sun environments.
For THWN-2, it can also work in flooded environments.
Conductor with toughness
Lead-free

AREA OF APPLICATION OF THHN, THWN-2 INCLUDES:

Installation of low voltage electrical networks in walls, ceilings, floors of civil electrical systems and industrial electrical systems, grounding the electrical system.
Power connection for industrial machinery, equipment and electrical systems
Use in renewable energy systems such as solar and wind power
Electrical systems on ships
Other special applications: applications in alarm systems, lighting systems, and automatic control systems.

THHN and THWN-2 products are often manufactured with a variety of conductor cross-sections to suit the needs of each application. The conductors are soft annealed pure copper, flexible conductor type (class 5) or concentrically twisted conductor (class 2) and solid single-strand conductor (class 1).

Collectively, the advantages of THHN and THWN-2 can be summarized as follows.