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Halogen-Free – What does it mean?
What is Halogen-Free Shrink Tubing?
Halogen-free shrink tubing has been used for many years in various industries. They are used in public spaces where people live, work and move. These shink tubing are better than “ordinary shrink tubing” in terms of fire safety and are less harmful.
What are halogens?
Elements such as fluorine, chlorine, bromine, iodine and astate are halogens and are part of the seventh main group in the periodic table of the elements. They are found in many chemical compounds, such as chlorine in polyvinyl chloride. PVC, as it is abbreviated, is very durable, which is why it is used in many technical products, including as insulation and sheath material in cables. Chlorine and other halogens are often added as additives to improve flame resistance. However, this has a price – halogens are harmful to health. For this reason, plastics that do not contain halogens for cables are increasingly used.
What is a halogen-free shrink tubing?
Halogen-free shrink tubing is, as the name suggests, free of halogens in the plastic composition.
If you want or need to use halogen-free shrink tubing, make sure they are made of materials such as silicone rubber, polyurethane, polyethylene, polyamide, polypropylene, thermoplastic elastomers (TPE) or ethylene propylene diene rubber, among others. They do not contain hazardous stabilizers made of heavy metals or plasticizers, and the additives for flame retardants are ecologically safe.
What is a halogen-free shrink tubing called?
A cable is halogen-free if no halogens such as chlorine, fluorine or bromine are used in the insulation and sheath material on the cable or even in the heat shrink tubing, such as the shrink tubing ADW-HF from Kacab Teknik AB. Fittings, cable guards such as tube, or connectors can also be made of plastic without halogens and are therefore halogen-free. If you also need a halogen-free shrink tubing, you should therefore look out for the designation Halogen-free.
A common requirement today is that wires and cables must be halogen-free as otherwise they can cause corrosion damage to electrical equipment in the event of a fire, which is often greater than those caused by the fire itself. PVC e.g. is a chlorine compound and is therefore not halogen-free. Flame retardants also often consist of halogen compounds. In an environmentally friendly installation system, both pipes and connection parts should be completely free of PVC, halogens, aluminum and lead and cadmium. (Source: Protec Systems AV) cont. Next page NO 1 NOVEMBER 2008 – PAGE 2/8 contd Halogen-free Joule (J) is the SI unit for work or energy. 1 J is defined as the amount of work performed when a force of 1 newton is moved a distance of one meter in the direction of the force. Joule is named after the English physicist James Prescott Joule (1818-89). Watt is the SI unit for power. 1 W is defined as the power generated by 1 joule for one second. Watt is named after the Scottish engineer James Watt (1736-1819).
Halogen-Free Shrink tubing