Rated Voltage 0.6/1kV Low-smoke Halogen-free Grade B1 Low-toxicity Power Cable

Product Overview Rated voltage 0.6/1kV low-smoke halogen-free Grade B1 low-toxicity power cable is an environmentally friendly flame-retardant power cable designed for densely populated areas and buildings with high fire safety requirements. The product uses XLPE insulation and low-smoke halogen-free flame-retardant polyolefin sheath, providing comprehensive halogen-free, low-smoke, flame-retardant, and low-toxicity performance. It is an upgraded replacement for traditional PVC-insulated cables. This cable has been widely applied in nuclear power plants, metro systems, airports, theaters, super high-rise buildings, hospitals, schools, and other important facilities with high safety requirements.

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Product Advantages
Product Specifications

Implementation Standards

Standard No.	Standard Name	Main Content
GB/T 12706.1-2020	Extruded insulated power cables for rated voltages 1kV to 35kV	Cable structure, dimensions, and electrical performance
GB 31247-2014	Combustion performance classification of cables	B1 grade determination and additional information (d0, t0, a1)
GB/T 19666-2019	General rules for flame-retardant and fire-resistant cables	Technical requirements for halogen-free, low-smoke, low-toxicity, flame-retardant, fire-resistant properties

Common Models and Code Meanings

Typical models: WDZB1-YJY, WDZB1-YJY23 (steel tape armored), WDZB1N-YJY (with fire-resistant property).

Code meanings:
- W: Halogen-free — no halogen elements (F, Cl, Br, I, At) in sheath
- D: Low-smoke — extremely low smoke density during combustion
- Z: Flame-retardant
- B1: Grade B1 per GB 31247-2014
- N: Fire-resistant (when required)
- YJ: XLPE insulation; Y: polyolefin sheath

Main Technical Parameters

Electrical performance:
- Rated voltage U0/U: 0.6/1 kV; Max system voltage Um: 1.2 kV
- AC voltage test: 3500V / 5 min without breakdown
- Insulation resistance >= 1000 MOhm·km

Temperature parameters:
- Max long-term conductor temperature <= 90°C
- Short-circuit temperature (<=5s): 250°C
- Laying temperature >= 0°C (preheat if below 0°C)
- Operating temperature: -40°C to +50°C

Bending radius (D = OD): Unarmored single-core >= 20D; unarmored multi-core >= 15D; armored single-core >= 12D; armored multi-core >= 10D

Grade B1 Combustion Performance

Per GB 31247-2014, Grade B1 cables must pass stringent tests:

Test Indicator	Requirement
Flame Spread (FS)	<= 1.5 m
Peak Heat Release Rate	<= 30 kW
Total Heat Release (1200s)	<= 15 MJ
Fire Growth Rate Index (FIGRA)	<= 150 W/s
Peak Smoke Production Rate	<= 0.25 m²/s
Total Smoke Production (1200s)	<= 50 m²
Smoke Density (min. transmittance)	>= 60%

Additional classification (mandatory for B1 grade):
- Flaming droplets/particles: d0 (no droplets in 1200s) typical for B1
- Smoke toxicity: t0 (ZA2 grade) typical for B1
- Corrosivity: a1 (low corrosivity) typical for B1

Per DGJ08-2048-2016 and GB 50016-2018: Super high-rise buildings must select cables with combustion Grade B1 or above, toxicity t0, droplet grade d0.

Product Structure

1. Conductor: Oxygen-free copper rod, resistivity < 0.01700 Ohm·mm²/m
2. Insulation: XLPE — chemically cross-linked from linear PE to 3D network structure
3. Filling and oxygen barrier: Metal hydrates (magnesium hydroxide) release crystalline water to lower flame temperature
4. Armoring (YJY23): Double-layer galvanized steel tape gap winding
5. Sheath: Low-smoke halogen-free high-resistance polyolefin

Application Areas

Application Area	Typical Locations
Urban construction	High-rise, super-high-rise buildings, large commercial complexes
Public transportation	Metro, light rail, airports, stations
Public facilities	Hospitals, schools, convention centers, stadiums
Critical facilities	Data centers, financial centers, telecom hubs, power dispatch centers
Special venues	Hotels, theaters, shopping malls, nuclear power plants

ABOUT US

Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. is located in Changzhou, Jiangsu, China. It is a comprehensive trading company specializing in the export of industrial products. With years of international trade experience, the company has established strong channel resources and project collaboration experience in the African market.
By integrating high-quality manufacturing resources with a well-established supply chain, we provide reliable product supply and professional trade services to global customers, aiming to become an important bridge connecting Chinese manufacturing to the global market.

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NEWS & MEDIA

Professional Trade Strength Empowers Development, Hixon Changzhou Delivers Reliable Services to Global Clients

With core advantages in channel resources, supply chain integration and international trade operation, Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. always takes meeting global customer demand as the core. The company standardizes service processes, strictly controls product quality, and provides global customers with full-link reliable product supply and customized trade supporting services. It adheres to steady operation and innovative development, and strives to become a benchmark enterprise in the field of industrial product export trade.

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Company News
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Recently, Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. has further deepened project cooperation and channel layout in the African market. Relying on accumulated years of trade experience, the company establishes stable strategic partnerships with local enterprises in Africa, continuously enriches the categories of exported industrial products, and improves the professional level of trade services. It takes root in local demand, realizes precise docking between Chinese manufacturing and African market demand, and accelerates the steady development of overseas business.

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Company News
Rooted in Changzhou, Going Global: Hixon Builds a Key Bridge for Chinese Manufacturing Export

Adhering to the development positioning of linking domestic manufacturing and global markets, Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. gives full play to Changzhou's industrial cluster advantages. With professional international trade operation capabilities and rich overseas project experience, the company is committed to building an important transmission bridge for Chinese industrial products to enter the global market. It continues to expand overseas trade boundaries and help more high-quality made-in-China products march into international markets such as Africa.

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Company News
Hixon Changzhou Empowers Global Trade by Integrating High-Quality Domestic Manufacturing Resources

Focusing on the development trend of global industrial trade, Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. actively integrates high-quality domestic manufacturing resources and optimizes the whole supply chain system. The company relies on perfect supply chain management capabilities to provide global customers with stable product supply solutions and one-stop professional trade services. It effectively connects high-quality Chinese manufacturing products with global market demand and wins wide recognition from overseas clients for its reliable quality and efficient service.

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Company News
Hixon (Changzhou) Technology Investment Expands Layout of African Industrial Product Export Business

Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd., based in Changzhou, Jiangsu Province, continues to deepen its layout in the African market. As a professional comprehensive trading enterprise focused on industrial product exports, the company relies on its years of profound international trade experience, has built solid overseas channel resources and mature project cooperation systems. It further optimizes the layout of industrial product export business, consolidates market share in multiple African regions, and lays a solid foundation for long-term localized cooperation.

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Company News

No. 108-2, Zhongguancun Avenue, Kunlun Sub-district, Liyang City, Changzhou City, China
+86 -13961488818
+86-0519-88328818
wendy@czhixon.com
jemy@czhixon.com

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Product News

Model	Voltage level	Specification (number of cores x cross-sectional area)	Execution standard	Manufacturing branch
WDUZB1(N)-YJY WDUZ*(N)-YJY-B1	0.6/1kV	1×1.5～1×800	Q/320481SS577-2024	50mm² and below special cable factory Low voltage cable factory with an area of over 50mm²
WDUZB1(N)-YJY WDUZ(N)-YJY-B1 WDUZB1(N)-YJY23 WDUZ(N)-YJY23-B1	0.6/1kV	2×1.5～2×400 3×1.5～3×400 4×1.5～4×400 5×1.5～5×400 3×2.5+1×1.5～3×400+1×185 3×4+2×2.5～3×400+2×185 4×4+1×2.5～4×400+1×185	Q/320481SS577-2024	Special cable factory of 6mm² and below Low voltage cable factory with an area of 6mm² or more