Does Lszh need 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 is Lszh wire?
LSZH cable/wire refers to cables where the cable jacketing and insulation is made with materials that produce low/limited smoke and non-toxic halogens when exposed to fire or high temperatures. There is also low smoke cable and zero halogen cable / halogen free cable.
Where can I use halogen free cables?
Halogen free or zero halogen cabling is used in many areas of the cable and wiring industry, including aircraft, rail and construction. Used to protect wiring, it is proven to limit the amount of toxic gas emitted when it comes into contact with heat.
Can LSZH cable be used outdoors?
AFL’s Indoor/Outdoor Low Smoke Zero Halogen (LSZH) Breakout Cables are perfectly suited for rugged applications and installations requiring increased performance. These cables feature a durable IEC-compliant, zero halogen, UV and fungal resistant outer jacket.
When should you use low smoke cable?
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.
Why is smoke cable low?
When burned, a low-smoke zero halogen cable emits a less optically dense smoke that releases at a lower rate. During a fire, a low-smoke cable is desirable because it reduces the amount and density of the smoke, which makes exiting a space easier for occupants as well as increases the safety of firefighting operations.
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).
Is halogen free part of RoHS?
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.
Where Should low smoke cable be used?
They are therefore often specified indoors, especially in public areas, and in other hazardous environments and poorly ventilated areas. This includes cars, aircraft, railway carriages and ships. LSZH sheathed cables are commonly used across tunnels and underground rail networks.
What is low smoke and fume cable?
LSHF cables are made up of halogen free compounds that are good fire retardants but emit less than 0.5% hydrogen chloride gas and smoke when burnt. There’s no PVC in these cables, hence no harmful fumes or dense black smoke are given off in case 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 low smoke?
The term “low- smoke” describes the amount of smoke which a compound emits when burned, while “zero-halogen” describes the number of halogens used to make the compound. A product can be low-smoke but not zero-halogen or be zero-halogen but not low-smoke.