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。
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检验项目 Inspection Item |
技术指标 Technical Target |
检验结果 Inspection Result |
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耐火性能 Fire-resistant performance |
耐火完整性 Fire integrity |
A1级≥1.00h |
1.00h |
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耐火隔热性 Heat insulation |
A1级≥1.00h |
1.00h |
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燃烧性能 combustion performance |
≥ v-0 级 v-0 degree |
v-0 级 v-0 degree |
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外观 Exterior appearance |
Plate, ***ooth surface |
Up to mustard |
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抗弯强度/ MPa Anti-bending strength/ MPa |
≥0.10 |
62.06 |
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耐水性/d Water tolerance/d |
≥3 不溶胀，不开裂no swelling and cracking |
3 |
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耐油性/d Oil resistivity/d |
≥3 不溶胀，不开裂 no swelling and cracking |
3 |
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耐湿热性/h Humidity resistance/h |
≥120不开裂不粉化 no swelling and efflorescence |
120 |
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耐冻融循环/次 Resistance to cold cycle/time |
≥15 不开裂，不粉化 no swelling and efflorescence |
15 |
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