Is halogen free cable low smoke?
Unlike PVC cables and those made of other compounds which produce vast amounts of dense black smoke, toxic fumes and acid gas when exposed to fire, LSZH cables produce very low levels of smoke and toxic fume and no acid gases.
What is low smoke Ethernet cable?
Low smoke zero halogen or low smoke free of halogen (LSZH or LSOH or LS0H or LSFH or OHLS or ZHFR) is a material classification typically used for cable jacketing in the wire and cable industry.
Is XLPE low smoke?
Low Smoke XLPE Armoured Cable SWA 3 Core 2.5mm 6943XLSZH In the event of a fire, this type of sheath will emit very low levels of smoke, and non-toxic levels of poisonous halogen gases (typically under 0.5% HCl emission). This type of sheathing is mainly recommended for use in highly populated enclosed public areas.
Should I use low smoke cable?
The use of LSOH cables is not a requirement of BS 7671 in domestic or Non-domestic buildings at present. The use of these cables is often subject to specification requirements rather than regulation. Regulations, however, may soon require such cables when installed in escape routes in certain buildings.
What does low halogen mean?
Within Intel, the term “low-halogen” is defined in Clause 4 of JEDEC JEP 709 and is used to identify solid state devices that contain low concentrations of bromine and chlorine from brominated and chlorinated flame retardants (BFRs, CFRs).
Where Should low smoke cable be used?
Because the purpose of LSZH cables is generally to minimise risk from the after-effects of an electrical fire like gas and smoke inhalation, they are generally used in large public spaces where there is a risk of fire.
Is LSF the same as LSOH?
LSOH cables are those that, when exposed to fire emit no more than 0.5% hydrogen chloride. They are not the same as LSF cables. LSF cables burn very quickly and give off black smoke. By contrast LSOH cables burn cleanly when exposed to the same heat source.
Is halogen-free mandatory?
A: No. A company can’t claim halogen-free status solely due to REACH or RoHS compliance, and will need to comply with halogen-specific standards, such as IEC 61249-2-21 and JS709C, to make such a claim.
Why is halogen-free important?
When a plastic containing halogens burns, these halogens are released from the jacket and get into the breathing air. The combination with water produces an acid that is toxic to humans. Halogen-free is therefore particularly important if the user has to pay particular attention to the danger posed by a potential fire.
Is PVC low smoke?
The term “low-smoke, zero-halogen” describes two distinct properties of a cable compound. PVC—Polyvinyl chloride (vinyl), a general-purpose plastic jacket material used for cables. Features low in cost and flexible, PVC cable is widely used in applications such as computers, communications and low voltage wiring.
Why is halogen free important?
Where can I use halogen free cables?
Where are halogen-free cables used? Great attention should be paid to the use of halogen-free cables, especially in applications with increased fire hazard. So if a cable is used where there is an increased risk of fire, the absence of halogen excludes a risky source of hazard.