发明授权
- 专利标题: ELECTRICAL CABLE WITH A TUBE FOR AN OPTICAL CABLE
- 专利标题(中): 有管电电缆,光缆
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申请号: EP07861114.2申请日: 2007-12-18
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公开(公告)号: EP2145339B1公开(公告)日: 2012-06-20
- 发明人: EFRAIMSSON, Lars , STRÖM, Bengt
- 申请人: Telefonaktiebolaget LM Ericsson (publ)
- 申请人地址: 164 83 Stockholm SE
- 专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址: 164 83 Stockholm SE
- 代理机构: Egrelius, Fredrik
- 优先权: SE0701096 20070504
- 国际公布: WO2008136722 20081113
- 主分类号: G02B6/44
- IPC分类号: G02B6/44 ; G02B6/48
摘要:
The invention refers to an electrical cable (C5) with three insulated conductors (51,52,53), a tube (58) for an optical cable, a strip (57) of elastic material embedding the tube and a jacket (56). When the cable (C5) is handled, e.g. suspended between poles or dredged into the ground, the tube (58) can be deformed by external forces. This makes it impossible to blow or float the optical cable into the tube. The tube (58) is protected by the strip (57) and especially by the strip having a flat interval (15) in proximity to the tube. External forces from e.g. suspension equipment will mainly deform the strip (57) at the ends of the interval (15) and less of the forces will hit the tube (58). The deformation sets up an interior pressure in the strip that acts in sideward direction on the tube and contributes to keep it round and non deformed.
公开/授权文献
- EP2145339A1 ELECTRICAL CABLE WITH A TUBE FOR AN OPTICAL CABLE 公开/授权日:2010-01-20
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