Title:
EQUIPOTENTIAL OPTICAL FIBRE UNIT FOR HIGH-VOLTAGE PHOTOELECTRIC COMPOSITE CABLE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/058421
Kind Code:
A1
Abstract:
An equipotential optical fibre unit for a high-voltage photoelectric composite cable. The equipotential optical fibre unit for the high-voltage photoelectric composite cable is sequentially composed of an optical fibre (1), a water blocking factice (2) specially used for filling the optical fibre unit, a metal protective tube (3), a semiconductive plastic enhancement layer (4), a metal wire armoured layer (5) and a semiconductive plastic outer protection layer (6) from inside to outside. Various protection layers are electrically connected by means of the protection of metal and non-metal materials, and the various protective layers are equipotential. Under the action of an electric field of a power cable, a potential difference will not be generated between metal and non-metal material protection layers; the entirety of an optical fibre unit and other structures of a photoelectric composite cable also form an equipotential body; therefore, a potential difference does not exist between the optical fibre unit and other structures of the cable, so that the optical fibre unit itself will not be broken through due to the fact that an induced voltage is too high, in addition, the space between the optical fibre unit and a high voltage cable core will not be broken through, thereby ensuring the security of the optical fibre unit and the cable body, and improving the service life of the cable.
Inventors:
ZHAGN JIANMIN (CN)
MA ZHIJIN (CN)
ZHAO YOULIN (CN)
ZHU JINHUA (CN)
MA ZHIJIN (CN)
ZHAO YOULIN (CN)
ZHU JINHUA (CN)
Application Number:
PCT/CN2015/083676
Publication Date:
April 21, 2016
Filing Date:
July 09, 2015
Export Citation:
Assignee:
ZHONGTIAN TECHNOLOGY SUBMARINE CABLE CO LTD (CN)
International Classes:
G02B6/44; H01B11/22
Foreign References:
| CN104297875A | 2015-01-21 | |||
| CN103000292A | 2013-03-27 | |||
| CN101562064A | 2009-10-21 | |||
| CN201436664U | 2010-04-07 | |||
| CN101923198A | 2010-12-22 | |||
| EP0945876A1 | 1999-09-29 |
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK OFFICE (ORDINARY PARTNERSHIP) (CN)
南京瑞弘专利商标事务所（普通合伙） (CN)
南京瑞弘专利商标事务所（普通合伙） (CN)
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