Fire-proof Cables FQJ Series

FQJ Series cable have good function like heat insulation, fire-proof,
corrnsion-resisting and also are suiable for wide-ranging environment. They
have characteristics of light weight, heavy load and reliable safety, and also
have reached the advanced standard in country.
FQJ Series of fire-proof channel box can be divided into for parts as follows
according to different use occasions.
(1) Fully-sealed channel box of fire-proof type: The product suits the power
cable below 10kv, and also suits the control cable, lightening Lines to be Laid
in the areial cable ditch and channel indoors or outdoors.
(2) Half-sealed channel box of the fire-proof type: The product can experience
flame stifling, temperature in the channel can be limited to be permitted value
for the safety motion of cable. The box cover is double board. Besides the
function against rain, if can fall automatically when temperature is high
enough, covering the cooling hole to avoid air.
(3) Fire-proof channel box for cable tunnel: The product is widely-used for the
tunnel, some undergroundpublic facilities and some other occasions. It"ps well
ventilated. when the channel box catches fire or the cable is hotter, the
opened ventilated mesh soaked with special refractory coating is blocked becase
of the flames, and also expanded to thick carbombits covering the cable, the
small cover on the net falls automatically to cover the net face, as a result,
causing the burning medium to go out because of the absence of oxygen.
(4) Inorganic channel box of fire-proof type: The product is formed with the
inorganic materical and strengthed glass fibre. The refractory structure is
fully seally. It can prevent efficiently the self-burning of the cable and the
danger of the outer kindling material · Because of inorganic material, it is
especially suitable for the occasions of serious acid and alkali corrosion.

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