EXB-3型復合防火槽盒由無機不燃材料為基體，內外表面復合有機高分子難燃材料制成，具有氧指數高，防火性能好，拉伸、彎曲、壓縮強度高、剛性好、耐腐性好，耐候性好等特點且價格較低，適用于戶內外的各種環境條件，產品廣泛應用于化工、石油、電力、冶金、建筑等各個行業，各種電壓等級的敷設，特別是重要回路及有防火防腐要求的場所中鋼制橋架的理想替代產品。

　　EXB-3 type fireproof multiple tray made up of inorganic fireproof material base, the composite organic macromolecule fireproof material inside and outside surface; it has characteristics of high aerobic index, good performance of fireproof, high intension of stretching, crook and compress, good rigidity, good rot proofness and low price; it’s suitable for all kinds of environment condition indoor-outdoor, It’s widely used in electric power, petrifaction, metallurgy,construction, post and telecom industries, and the fireproof protect and fireproof compartmentation of all kinds of pressure level cable, especially the reasonable subsitutes of steel bridging in the ground has the fireproof requirement and the important loop.

主要技術性能 Main technical performances

項目 Item	單位Unit	技術性能指標 Technical specification
體積密度 Bulk density	Kg/m3	(1.6±0.1)×103
耐水性 Water resistance	/	常溫下清水浸泡30d，無明顯變化 After soaking in clear water for 30 days under normal temperature, no obvious change shall occur.
拉伸強度 Tensile strength	MPa	≥45
彎曲強度 Bending strength	MPa	≥65
壓縮強度 Compressive strength	MPa	≥35
沖擊強度 Impact strength	J/m2	≥2.0×104
燃燒性能 Buming performance	/	B1級 Grade B1
耐酸性 Acid resistance		常溫下浸泡30d，無明顯變化 After soaking in clear water for 30 days under normal temperature, no obvious change shall occur.
復合強度 Composite strength	MPa	≥0.2