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英国BICC电缆公司电力部开发出一种新型的低烟雾(LSF)通用混合物,它可以在各种苛刻的应用场合更好地保护电缆。这种新型热塑性混合物显示出比现有材料更大的使用优点,防水性能优于PVC护套混合物,经长期浸水后,还能保持较高的绝缘电阻。最近的试验表明:浸水6个月后,含有挤出垫层和此种新型混合物外护套的铠装电力电缆没有受到腐蚀,水也没渗入外护套。
The British Ministry of Electric Power, BICC Cable, has developed a new general purpose mixture of low smoke (LSF) that protects cables better in a variety of demanding applications. This new thermoplastic blend shows greater service advantages over existing materials, offers better water resistance than PVC jacket compounds, and maintains a high insulation resistance after prolonged flooding. Recent tests have shown that after 6 months of flooding, the armored power cable containing the extrusion blanket and the outer sheath of this new mixture has not been etched and water has not penetrated into the outer jacket.