News :: LS0H - Low Smoke Zero Halogen cables
Many building projects now call for the use of cables that, in the event of a fire, are less hazardous to people when they burn. There are two key features - reduced smoke emission to minimise hazards from smoke inhalation and aid evacuation, and no or minimal halogen combustion products which are highly toxic.
So, to create cables that are less hazardous in the event of fire, various compounds have been developed. These are typically described as "low smoke, zero halogen" or "low fire hazard". The bad news is that they lack flexibility and discolour easily - but as cables made from these are going to be in ducts or ceiling voids, that's not really a problem.
A bit more bad news, this cable is more expensive - you can add 50% to the cost of speaker cable and 25% to the cost of microphone multicore.