Introduction to low smoke halogen-free cable_Anhui Honglin Instrument Cable Co., Ltd.

Introduction to low smoke halogen-free cable

Author：hlyb Add Time：2016-06-01 09:57:25

1、 Overview:

Low smoke halogen-free cable is suitable for subway, high-rise buildings, shopping malls, theatres, power stations, chemical factories, city squares and other public utilities with AC rated voltage of 450 / 750V and below. The cable has the characteristics of halogen-free and low smoke, low halogen and low smoke. In case of fire, the spread speed is slow, the smoke concentration is low, the visibility is high, and the release of harmful gas is small, which is convenient for personnel evacuation. The corrosivity of combustion gas is small, and the damage to instruments and equipment is avoided. The characteristics of low halogen and halogen-free greatly improve the aging resistance, ultraviolet and other irradiation resistance of cable materials, so as to prolong the service life of cables.

2、 Product executive standard:

Low smoke halogen-free cable shall comply with gb9330-88 Q / wtl11-2003 standard

3、 Service characteristics of low smoke halogen-free cable;

1. Cable rated voltage uo / u: 450 / 750V, AC polyolefin uo / u is 0.6/1kv

2. The long-term operating temperature of the cable is: - 20 ℃ - 90 ℃, - 40 ℃ - 105 ℃

3. Recommended bending radius: the non armored cable shall not be less than 6 times of the outer diameter of the cable, and the cable with armored or copper tape shielding structure shall not be less than 12 times of the outer diameter of the cable.

4、 Main technical indicators

1. The cable shall withstand power frequency voltage test at ambient temperature of 3KV without breakdown for 5min

2. The light transmittance of the cable shall comply with the following table

Cable outer diameter D (mm) transmittance (%) ≥ cable outer diameter D (mm) transmittance (%) ≥

D＞40 70 5＜D≤10 50

10＜D≤40 60 D≥5 40

3. Non flame retardancy (flame retardant property) of cable: it shall pass gb12666 5-90 class B bunched combustion test. The vertical combustion test of single wire and cable shall pass gb12666 2-90

4. The release of halogen acid gas shall comply with iec754-1

5. The pH value and conductivity of combustion gas shall comply with iec754-2, pH ≥ 4.3, and conductivity ≤ 10 μ S/mm。

5、 Basic model and name

Model name

Dld-kvv copper core low smoke and low halogen PVC insulated and sheathed control cable

Dld-kvvp copper core low smoke low halogen PVC insulated and sheathed copper mesh braided shielded control cable

Dld-kvv22 copper core low smoke and low halogen PVC insulated and sheathed steel tape armored control cable

Wld-kjeg copper core halogen-free low smoke cross linked polyolefin insulated thermosetting sheathed control cable

Wld-kjegp copper core halogen-free low smoke crosslinked polyolefin insulated thermosetting sheathed copper mesh shielded control cable

Wld-kjegp2-22 copper core halogen-free low smoke crosslinked polyolefin insulated thermosetting sheathed copper tape shielded steel tape armored control cable

Wld-kjes copper core halogen-free low smoke crosslinked polyolefin insulated thermoplastic sheathed control cable

Wld-kjesp copper core halogen-free low smoke crosslinked polyolefin insulated thermoplastic sheathed copper mesh shielded control cable

Wld-kjes22 copper core halogen-free low smoke crosslinked polyolefin insulated thermoplastic sheathed steel tape armored control cable

Dld-ksf copper core low smoke and low halogen thermoplastic insulated NBR thermoplastic sheathed control cable

Dld-ksfp copper core low smoke and low halogen thermoplastic insulated Buna Ching thermoplastic sheathed copper mesh shielded control cable

Dld-ksfp2-22 copper core low smoke low halogen thermoplastic insulated NBR thermoplastic sheathed copper tape shielded steel tape armored control cable

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Introduction to low smoke halogen-free cable