EXB型防火復合橋架由無機和有機材料制成，具有不燃、質輕、強度高、價格低、施工方便等特點。適用于電力、冶金、石化、有點通訊等行業各種電壓等級電纜的防火保護和耐火分隔。

　　EXB type fireproof multiple bridging made up of inorganic and organic materials, it has the characteristics of nonburining, lightweight, hing intension, low price, construction, post and telecom industries, and the fireproof protect and fireproof compartmentaion of all kinds of pressure level cable.

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	(1.7±0.2)×103
耐水性 Water resistance	/	常溫下清水浸泡10d，無明顯變化 After soaking in clear water for 10 days under normal temperature, no obvious change shall occur.
拉伸強度 Tensile strength	MPa	≥35
彎曲強度 Bending strength	MPa	≥60
壓縮強度 Compressive strength	MPa	≥50
沖擊強度 Impact strength	J/m2	≥1.8×104
燃燒性能 Buming performance	/	A級 Grade A