电缆接头保护盒由不燃无机耐火材料制成对称的两部分，并由多条螺栓对连接，能有效防止电缆接头爆裂起火的火灾蔓延，若有通风散热要求的接头盒可在盒身开散热孔，遇火时，散热孔封闭防止火势蔓延。此产品适用于电线电缆的接头处，有效地防止火灾发生时火焰的蔓延和扩散。检验项目InspectionItem技术指标TechnicalTarget检验结果InspectionResult耐火性能Fire-resistantperformance耐火完整性FireintegrityA1级≥1.00h1.00h耐火隔热性HeatinsulationA1级≥1.00h1.00h燃烧性能combustionperformance≥v-0级v-0degreev-0级v-0degree外观ExteriorappearancePlate,***oothsurfaceUptomustard抗弯强度/MPaAnti-bendingstrength/MPa≥0.1062.06耐水性/dWatertolerance/d≥3不溶胀，不开裂noswellingandcracking3耐油性/dOilresistivity/d≥3不溶胀，不开裂noswellingandcracking3耐湿热性/hHumidityresistance/h≥120不开裂不粉化noswellingandefflorescence120耐冻融循环/次Resistancetocoldcycle/time≥15不开裂，不粉化noswellingandefflorescence15)