XLPE Insulated LSZH Sheathed Non-armored Power Cable

Tianjin Beida is a China manufacturer and supplier of XLPE Insulated LSZH Sheathed Non-armored Power Cables. These cables produce no halogens when burning and generate very little smoke. In the event of a fire, this provides a relatively long escape time, making them suitable for densely populated areas. With their outstanding safety and environmental characteristics, they have become an ideal choice for public buildings, commercial complexes, and other densely populated locations.

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Product Description

XLPE Insulated LSZH Sheathed Non-armored Power Cables are the high quality products offered by Tianjin Beida, we are a reliable manufacturer and supplier. This series of cables uses XLPE insulation produced through a physical cross-linking process, which not only possesses excellent electrical properties (temperature resistance up to 90℃, with an upper operating temperature limit 30% higher than PVC cables), but also achieves a dual breakthrough in flame retardancy and environmental friendliness through molecular structure modification. Its outer sheath is made of a specially formulated halogen-free, low-smoke polyolefin material, producing only a trace amount of white smoke during combustion, and its smoke density and light transmittance meet the highest level requirements of GB/T 17651 standard, ensuring that visibility at fire scenes remains within a safe range.

Currently, Beida's cable series has formed a complete product matrix, covering all voltage levels from 0.6/1kV to 26/35kV, and all conductor cross-sections from 1.5mm² to 1000mm². Among them, the WDZ-YJY type is suitable for dry indoor environments, while the WDZ-YJY23 type has an optimized sheath formula for humid environments, and the WDZ-YJY43 type, with its added longitudinal waterproof layer design, can meet the needs of special scenarios such as underground pipe corridors.

Product Structure

XLPE Insulated LSZH Sheathed Non-armored Power Cable is composed of a T1R copper conductor , XLPE insulation and LSOH polyolefin sheath.

Conductor: Copper or Aluminium conductor , round standed or Shaped, Class 2 to IEC 60228

and GB/T 3956-2008, For cross-section area is not more than 6mm², a solid round

conductor may be used, Class 1 to IEC 60228 and GB/T 3956-2008.

Insulation: Insulation thickness, material property shall be as per IEC 60502 and GB/T 12706.

Core Colour: 1 core: red or yellow or green or blue or black

2 cores: red, blue or red, black

3 cores: yellow, green, red or red, yellow, blue

4 cores: yellow, green, red, blue or red, yellow, blue, black

5 cores: yellow, green, red, blue, black or red, yellow, blue, black, green

Above 5 coes: white cores with black number or the technical agreement with the client

Outer sheath: Sheath thickness, material property shall be as per IEC 60502 and GB/T 12706.

Flame-retradant cable: Flame-retardant LSOH polyolefin outer sheath material shall be used. The flame retardant grades can be classified into three categories: Bunch A, B, and C.

Fire-resistance cable: Two layer of Mica tape shall be wound around the conductor.

Process flow diagram

Xlpe Insulated Lszh Sheathed Non Armored Power Cable

Product Application

For subway, underground tunnel, civil air defense engineering and other underground closed engineering important factory buildings, key laboratories, data centers, chemical plants, high-rise buildings, hospitals, shopping malls, schools, gymnasiums, cinemas, high-speed rail stations/airport waiting rooms and other crowded places with high requirements for safety and corrosion.

Comparison with ordinary PVC sheathed cable

character	Halogen-free low-smoke cable	PVC cable
fire safety	When burned, it produces little smoke, and the gas is non-toxic and non-corrosive.	When burned, it produces a large amount of toxic and corrosive gas (HCl) and a large amount of white smoke.
Environmental performance	It has excellent environmental performance and does not contain halogens after combustion.	Not environmentally friendly
Mechanical and physical properties	It is harder than PVC, but its tear resistance is not as good as PVC.	It is soft, has good bending properties, and good tear resistance.
cost	higher cost	lower cost

Performance parameter

The product has a rated voltage of 0.6/1 kV. During testing, a test voltage of up to 3.5 kV was applied and maintained for 5 minutes without any breakdown, demonstrating reliable insulation performance. Regarding conductor resistance, at 20℃, its conductor resistance value strictly complies with IEC 60228 or GB/T 3956 standards, ensuring stable electrical performance.

In terms of temperature adaptability, the product exhibits excellent performance, operating stably over a wide temperature range from -5℃ to +90℃. Even under short-circuit conditions, it can withstand temperatures up to +250℃ without damage. Regarding bending performance, the product specifies a minimum bending radius of 15 times the outer diameter and a minimum static bending radius of 10 times the outer diameter, ensuring flexibility during installation and use.

Furthermore, the XLPE Insulated LSZH Sheathed Non-armored Power Cable meets high standards in flame retardancy and fire resistance. Its flame retardancy complies with IEC 60332 or GB/T 19666 standards, effectively preventing the spread of fire; its fire resistance complies with IEC 60331 or GB/T 19666 standards, ensuring it maintains certain functionality even in extreme conditions such as fires. Simultaneously, the product's pH value and conductivity strictly adhere to IEC 60754 and GB/T 19666-2019 standards, its light transmittance complies with IEC 61034 and GB/T 19666-2019 standards, and its total halogen acid gas release also complies with IEC 60754 and GB/T 19666-2019 standards, comprehensively ensuring the product's safety and environmental friendliness.

Current-carrying capacity in amperes（A）

Type	CU/XLPE/PVC; AL/XLPE/PVC		CU/XLPE/PVC; AL/XLPE/PVC
Number of core	Single core		Multi cores
Cross-section area ,mm²	In air		In air
Cross-section area ,mm²	Cu	Al	Cu	Al
1.5	27	—	21	—
2.5	37	28	26	21
4	51	39	34	26
6	65	52	44	35
10	92	70	56	45
16	120	94	77	59
25	160	120	100	78
35	195	150	130	100
50	240	185	160	125
70	300	235	195	150
95	370	285	245	190
120	430	335	300	230
150	495	385	350	270
185	575	445	400	310
240	680	530	465	360
300	790	610	550	430
400	925	725	—	—
500	1075	845	—	—
630	1245	995	—	—