The fire resistant cable are constructed in the following typical format.
Fire resistant cable construction.
Construction infrastructure fire resistant cables.
Thermosetting insulated armoured fire resistant cables of rated voltage 600 1000 v having low emission of smoke and corrosive gases when affected by fire.
Kei fire resistant cable have been developed to maintain circuit integrity in a fire and to ensure maximum safe evacuation of personnel with no detrimental effects like toxic gases or smoke.
Fire resistant cable in all fire disasters fire smoke heat and toxic fumes are the main obstacles to safe evacuation of a building or area.
Bs 7846 electric cables.
A major contribution towards overcoming these hazards is the use of fire resistant and non halogenated cables.
Specification for 300 500 v fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire multicore and multipair cables.
The resistance to fire performance is measured as follows.
Low smokes cables have a sheath designed to limit the amount of smoke and toxic halogen gases given off during fire situations.
Level manufacturing british standard applications.
15 30 60 90 and 120 minutes of operation in a standardised fire condition at european level cenelec and equivalent international iec.
Fire resistant and fire retardant cable sheaths are design to resist combustion and limit the propagation of flames.