基本信息:
- 专利标题： FIRE RESISTANT FIBRE OPTIC CABLE WITH HIGH FIBRE COUNT
- 申请号：PCT/EP2017/075455 申请日：2017-10-06
- 公开(公告)号：WO2019068340A1 公开(公告)日：2019-04-11
- 发明人： SIRIN, Zekeriya , SÖNMEZ, Baris , ALTINGÖZ, Can
- 申请人： PRYSMIAN S.P.A.
- 申请人地址： Via Chiese, 6 20126 Milano IT
- 专利权人： PRYSMIAN S.P.A.
- 当前专利权人： PRYSMIAN S.P.A.
- 当前专利权人地址： Via Chiese, 6 20126 Milano IT
- 代理机构： COLOMBO, Stefano Paolo et al.
- 主分类号： G02B6/44
- IPC分类号： G02B6/44 ; H01B7/295
摘要：
Disclosed is a fire resistant fibre optic cable with high fibre count comprising: a core comprising: a central strength member, and a plurality of buffer tubes arranged around said central strength member, each buffer tube containing a plurality of optical fibres; a mica layer arranged around the core; a glass yarn layer surrounding and in direct contact with the mica layer; an inner sheath surrounding and in direct contact with the glass yarn layer; a metal armour surrounding the inner sheath; and an outer sheath surrounding and in direct contact with the metal armour, wherein the central strength member comprises a hydroxide-containing flame retardant polymeric material, and wherein the buffer tubes contain a water-blocking filling material comprising a silicone gel, wherein said silicone gel has a drop point of at least 200 °C.
IPC结构图谱:
| G | 物理 |
| --G02 | 光学 |
| ----G02B | 光学元件、系统或仪器 |
| ------G02B6/00 | 光导；包含光导和其他光学元件（如耦合器）的装置的结构零部件 |
| --------G02B6/44 | .用于为光导纤维提供抗拉强度和外部保护的机械结构，例如，光学传输电缆 |