Halogens combine with water, such as the extinguishing water used by the fire brigade or fluid from the mucous membranes, to form acids - chlorine becomes hydrochloric acid, fluorine the highly corrosive hydrofluoric acid.

If a fire breaks out, hydrogen halides are released from the plastic. This is particularly the case when halogenated plastics, particularly PVC, burn. The SKINTOP® ST- HF-M cable gland and the SILVYN® heat-shrinkable tubes are flame-retardant and self-extinguishing, as well as being halogen free, and offer a high level of functional reliability. Halogen-free cable glands are identified by the letters HF. For example, our control cable ÖLFLEX CLASSIC 110 H or, in general, the NHXM H sheated cables as a halogen-free alternative to the PVC installation cable NYM. LAPP products are identified by the letters H in the product designation. Depending on the manufacturer, you can thus find designations for halogen-free cables such as:

Over time, a number of common market designations have emerged in the cable industry with regard to the marking of halogen-free cables. If you need halogen-free cables, for example, please note the following product designations: Cable glands, hose systems, connectors or shrink hoses, such as the PROTECT HF shrinking tube from LAPP, can also be made of halogen-free plastics and are thus halogen free. A cable is halogen-free if no halogens such as chlorine, fluorine or bromine are used in the cable’s insulation and sheath material.

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