Flame Retardant Cable

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Flame Retardant Cable

The meaning of flame retardant: under the specified test conditions, the sample is burned, after the fire source is removed, the flame spread on the sample is only within a limited range and extinguishes itself, that is, it has the characteristics of preventing or delaying the occurrence or spread of flame ability.

The burning of wires and cables is caused by external heating to produce flammable gas. To achieve the purpose of flame retardancy, the three elements that cause combustion must be suppressed, namely: flammable gas, heat and oxygen. Therefore, the method generally used for flame-retardant wires and cables is to add halogen-containing halides and metal oxides to materials such as insulation, sheath, and filling. From the perspective of flame retardancy, this is an excellent method. However, Because these materials contain halides, they release a large amount of smoke and hydrogen halide gas when burned. Therefore, the visibility during fire is low, which greatly hinders the safe evacuation and fire fighting of personnel, and people are more toxic. The gas suffocated and died.

In addition, once the hydrogen halide gas reacts with water in the air, “hydrohalide acid” is generated, which severely corrodes equipment, buildings, and causes secondary disasters.

At present, with the continuous improvement of the level of science and technology, the B-day burning problem has been further developed from the halogen flame retardant in the past to the low halogen and halogen-free flame retardant. Qinglan uses low-smoke, halogen-free, Halogen-free polymer materials with high decomposition temperature and good mechanical properties. Since the cable does not contain halides and metal oxides, it will not produce harmful gases and a large amount of smoke during combustion, and there is no possibility of causing secondary disasters, and It also has good mechanical and electrical properties, meets the requirements of the use of cables, and completely changes the shortcomings of the previous flame-retardant cables.

Common flame-retardant cable model introduction and usage description

Copper coreAluminum coreNameUse
ZA-YJV ZB-YJV ZC-YJVZA-YJLV ZB-YJLV ZC-YJLVXLPE insulated and PE sheathed A (B, C) flame-retardant power cableIt can be installed in indoor tunnels and pipelines that require flame retardancy.
ZA-YJV22 ZB-YJV22 ZC-YJV22ZA-YJLV22 ZB-YJLV22 ZC-YJLV22XLPE insulated steel tape armored polyethylene sheathed Class A (B, C) flame-retardant power cableIt is suitable for laying in the ground when flame retardant is required, but not suitable for laying in pipelines.,
ZA-VV ZB-VV ZC-VVZA-VLV ZB-VLV ZC-VLVPE insulated and PVC sheathed A (B, C) flame-retardant power cableIt can be installed in rooms, tunnels and pipelines that require flame retardancy.
ZA-VV22 ZB-VV22 ZC-VV22ZA-VLV22 ZB-VLV22 ZC-VLV22Polyethylene insulated steel tape armored polyethylene sheathed A (B, C) flame-retardant power cableIt is suitable for laying in the ground when flame retardant is required, but not suitable for laying in pipelines.,
WDZA-YJY WDZB-YJY WDZC-YJYWDZA-YJLY WDZB-YJLY WDZC-YJLYCross-linked polyethylene insulated halogen-free low-smoke polyolefin sheath A (B, C) flame-retardant power cableIt can be laid in indoors, tunnels and pipelines that require flame-retardant, halogen-free and low-smoke.

Main Feature

1. Ordinary flame retardant cable

For class A and B fire tests, the ignition time is 40 minutes, for class C and D fire tests, the ignition time is 20 minutes, the scorch height does not exceed 2.5 m.

2. Low halogen and low smoke flame retardant cable

After the group combustion test, the halogen acid gas emission is less than 100 mg/g, and the flue gas density (transmittance) is more than 30%.Class C flame retardant requirements.

3. Low smoke zero halogen (LSZH) flame retardant cable:

The total emission of halogen acid gas is 0 mg/g, the pH value is ≥4.3, the conductivity is ≤10 us/mm, and the toxicity index is ≤5.
From the group combustion test, at least meet the C-level flame retardancy, smoke density (transmittance) ≥60%.

4. Oxygen insulation cable (high flame retardant cable)

From the group combustion test, it meets and exceeds the requirements of Class A flame retardancy and smokedensity(Transmittance) equal to or close to the national standard GB/T17651-2008 and the international standard IEC61034 Smoke standards.

Especially suitable for the flame retardancy of 6 KV-35 KV medium voltage cable frame, not only has A-level flame retardancy,

But it also has certain fire resistance characteristics (that is, it can maintain the insulation standard of 2.4 Uo after burning for 20 minutes).

Related Products

Control Cable
Fire Resistant Cable
Low Smoke Zero Halogen Cable

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