Low Smoke Free Halogen Cable

Low-smoke free halogen cable has excellent properties, including chemical resistance, oil resistance, flame retardant, low smoke, halogen free and low price etc. It is appropriate for applying to general indoor wiring, hermetic space, rail and public works utilities etc. PEWC continues keeping its style and faith to research and test, and has produced LSFH cables for more than 20 years.

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Low Smoke Free Halogen Cable

Product Description

Low Smoke Free Halogen Cable

General halogen (Chlorine, Fluorine etc.) materials have been widely applied on wires & cables because of its excellent properties on chemical resistance, oil resistance, flame retardant, and low price etc. However, the dense choking smoke and toxic gas (HCl, HF etc.) which cause obstruction to the personnel evacuation and rescue work during fire accident and also cause fatal accident and corrosion to mechanical equipment will be created during burning. More and more facts like “King's Cross fire on the underground rail system in London” can prove this. Besides composite material is not self-decomposable, it causes air pollution during burning. Due to the rise of environmental consciousness, people have gradually focused on the R&D of non-polluted materials and so Low Smoke Free Halogen materials were developed to solve this problem.

PEWC continues keeping its style and faith to research and successfully develops Low Smoke Free Halogen cable. For keeping safe of society and clean living space, we ask respectfully to our both old and new acquaintances to choose it.

Characteristics of Low-Smoke-Free-Halogen (LSFH)

LOW SMOKE EMISSION

Material	Smoke Density (#)
PVC	350
Polychloroprene	345
Chlorosulfonated Polyethylene	360
Natural Rubber	365
LSFH	100

#： The test result is measured according to ASTM E662 with flaming mode for 4 minutes on the Smoke Density Chamber.

As the result shows, LSFH produced very low smoke density as compared with PVC (reduced to 30% under of that of PVC). Besides, the color of smoke is very light and will not cause pollution and obstruct the view.

HALOGEN-FREE

Toxic Gas (HCl or HF) will be emitted from halogen material during burning. If the HCl content in atmosphere exceeds over 1300ppm within a very short time, it will cause lethal effect to animal.

Material	Acid Gas Emission (HCl mg/g)
PVC	200~300
Flame Retardant PE	150~200
Polychloroprene	200~300
LSFH	0

Remark： Acid Gas Emission Test is accordance with IEC 754-1.

As the results show, no HCl was emitted from LSFH material, so it will not cause any damage to human bodies or equipments.

EXCELLENT FLAME RETARDANT

Flame retardant is considered to avoid and postpone the spread of fire during fire accident so as to prevent expanding disaster area and reduce the disaster.

The comparison of LSFH and other materials is shown as follows：

Material	Oxygen Index
PVC	33
Polychloroprene	32
XLPE	18
LSFH	34

Remark：

Oxygen-Index O.I. is measured according to ASTM D 2863.

Non-combustible materials: O.I. ≥21

Self-extinguishable materials: O.I. ≥27

GENERAL DATA (Comparison with PVC)

Material Test Item	LSFH	PVC
Tensile Strength（kgf/mm^²）	Min. 0.8	Min. 1.0
Elongation（%）	Min. 100	Min. 100
Aging Condition（℃/hours）	100/48	100/48
Retention of Tensile Strength（%）	Min. 75	Min. 85
Retention of Elongation（%）	Min. 65	Min. 80
Oil Immersion Condition（℃/hours）	70/4	70/4
Retention of Tensile Strength（%）	Min. 80	Min. 80
Retention of Elongation（%）	Min. 65	Min. 60
Volume Resistivity（Ω-cm）	Min.10¹⁵	Min.10¹⁴
Flame Retardant	IEEE 383 & IEC 60332-3	UL VW-1