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公开(公告)号：EP0628972A2
公开(公告)日：1994-12-14
申请号：EP94304203.6
申请日：1994-06-10
IPC分类号： H01B7/34
CPC分类号： H01B7/295
摘要： An electric cable with limited fire survival characteristics comprises at least one insulated conductor insulated with silicone rubber or other organic insulant that leaves an insulating inorganic residue on thermal breakdown and optionally a bare earth wire. A screening layer is formed by a laminate comprising a centre layer of mineral fibre cloth having one face formed by a layer of metal foil and the the other by a layer of organic material infusible below 200°C, preferably regenerated cellulose or cured isophalate polyester film. An extruded sheath of flame-retardant polymeric material contacts, but does not adhere to, the infusible film layer of the laminate.
This separation of the screening layer from the sheath ensures that it can be cut back for termination with negligible risk of damage to the conductor insulation and minimal risk of damage to the essential metal layer of the screening laminate. After it has been so cut back, the projecting end of the laminate may be turned back over the cut end of the sheath to expose a metal layer that is sufficiently supported to make an effective screen connection by mechanical means.摘要翻译： 具有有限的火灾存活特性的电缆包括至少一个用硅橡胶或其他有机绝缘材料绝缘的绝缘导体，该绝缘导体在热分解时留下绝缘无机残余物并且可选地包括裸露的接地线。 筛分层由包括矿物纤维布的中心层的层压件形成，所述矿物纤维布的中心层具有由金属箔层形成的一个面和另一个由在200℃以下不可熔的有机材料层，优选再生纤维素或固化的酒石酸聚酯膜 。 阻燃聚合物材料的挤出护套接触但不粘附层压材料的不熔膜层。 屏蔽层与护套的这种分离确保了可以将其切断以终止，而对导体绝缘体的损坏的风险可忽略不计，并且对屏蔽层压体的基本金属层的损害的风险最小。 切割后，层压材料的突出端可以在护套的切割端上翻转，以暴露金属层，该金属层被充分支撑以通过机械手段进行有效的屏幕连接。
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公开(公告)号：EP0628972A3
公开(公告)日：1995-02-22
申请号：EP94304203.6
申请日：1994-06-10
IPC分类号： H01B7/34
CPC分类号： H01B7/295
摘要： An electric cable with limited fire survival characteristics comprises at least one insulated conductor insulated with silicone rubber or other organic insulant that leaves an insulating inorganic residue on thermal breakdown and optionally a bare earth wire. A screening layer is formed by a laminate comprising a centre layer of mineral fibre cloth having one face formed by a layer of metal foil and the the other by a layer of organic material infusible below 200°C, preferably regenerated cellulose or cured isophalate polyester film. An extruded sheath of flame-retardant polymeric material contacts, but does not adhere to, the infusible film layer of the laminate. This separation of the screening layer from the sheath ensures that it can be cut back for termination with negligible risk of damage to the conductor insulation and minimal risk of damage to the essential metal layer of the screening laminate. After it has been so cut back, the projecting end of the laminate may be turned back over the cut end of the sheath to expose a metal layer that is sufficiently supported to make an effective screen connection by mechanical means.
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