How much is the EFW type inorganic fire barrier per meter Cable Cable tray flame retardant board
EFW type inorganic fireproof partition costs 5-30 yuan per meter, cable tray flame retardant board EFW type inorganic fireproof partition It is made of inorganic material as the main raw material, reinforced with medium alkali glass fiber gridding cloth, and processed. It belongs to other materials Fire resistance and flame retardancy: inorganic substance, which will not burn, and will not produce harmful gas under high temperature; At the same time, the thermal conductivity is very small, which makes the heat transfer slow, can effectively resist fire, and protect its structure from fire. The tolerance is above. This product has no radioactivity and no harmful substances overflow. Fireproof board Advantages: no pollution and hazardous waste are generated in the production process. When used, there is no radioactive material and harmful gas, even under high temperature and fire. The product has certain impermeability, which can prevent water and gas penetration. Product features High temperature resistance, high strength, waterproof, simple construction and convenient cutting.
1. Physical and chemical properties:
(1) Dry bending strength exceeds 11Mpa and reaches 24Mpa, acceptable
(2) Bending strength in saturated water absorption state exceeds 6Mpa, reaching 18Mpa, acceptable
(3) Moisture absorption deformation rate is lower than 0.35%, the result is 0.32%, acceptable
(4) Shrinkage of heated dimension is less than 2.0%, the result is 1.8%, acceptable
(5) The density value is greater than 1.30/cm3, qualified
2. Fire resistance:
(1) Temperature rise in furnace is less than 50 ℃ and reaches 17 ℃, acceptable
(2) If the continuous burning time is less than 20s, the result is 0s (noncombustible), acceptable
(3) The quality loss rate is lower than 50.00%, the result is 45.82%, acceptable
Panel and cabinet
(1) A 10mm thick fireproof board shall be laid at the bottom of the hole, and the pore opening and the surrounding of the cable shall be tightly sealed with organic plugging material. The thickness of the organic plugging material around the cable shall not be less than 20mm.
(2) The holes shall be filled with fireproof bags or poured with inorganic blocking materials.
(3) Feet shall be made at the gap between the fireproof board and the cable at the bottom of the hole, and the thickness of the Feet shall not be less than 10mm, and the width of the organic filler around the cable shall not be less than 40mm.
(4) The bottom of the panel and cabinet shall be sealed with 10mm fireproof partition. The partition shall be installed smoothly and firmly. The process gap and gap caused during installation shall be embedded in the hole with organic plugging material, and the feet shall be made. The thickness of the feet shall not be less than 10mm, and the width of the feet shall not be less than 20mm. The width of the organic plugging material around the cable shall not be less than 40mm, which is geometric and flat.
(5) The space at the bottom of the panel and cabinet that cannot be sealed by the fireproof board shall be tightly sealed with organic plugging material. The organic plugging material surface shall be more than 10mm higher than the fireproof partition, and shall be geometric and flat.
(6) A 10mm thick fireproof board shall be laid at the bottom of the reserved holes in the protection cabinet, and the holes shall be sealed with organic plugging materials. The holes shall be filled with fireproof bags or poured with inorganic plugging materials. The upper part of the reserved hole steel plate Or fireproof board to ensure the safety of the pedestrian passage. If the reserved hole is too large Channel or Angle steel Reinforcement shall be carried out, and fireproof boards can be installed after the holes are reduced (the size of holes shall be less than 400mm × 400mm).
