ITU-T L 5-1988 Cable Sheaths Made of Metals Other Than Lead or Aluminium《用铅或铝以外的其他金属制成的电缆护套-电缆及户外设备的其他部分的结构、安装和保护(研究组6)2》.pdf

《ITU-T L 5-1988 Cable Sheaths Made of Metals Other Than Lead or Aluminium《用铅或铝以外的其他金属制成的电缆护套-电缆及户外设备的其他部分的结构、安装和保护(研究组6)2》.pdf》由会员分享，可在线阅读，更多相关《ITU-T L 5-1988 Cable Sheaths Made of Metals Other Than Lead or Aluminium《用铅或铝以外的其他金属制成的电缆护套-电缆及户外设备的其他部分的结构、安装和保护(研究组6)2》.pdf（3页珍藏版）》请在麦多课文档分享上搜索。

1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 , TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITUCONSTRUCTION, INSTALLATIONAND PROTECTION OF CABLE AND OTHERELEMENTS OF OUTSIDE PLANT#!“,%G0G03(%!4(3G0G0G0-!$%G0G0/b) a steel sheath is not vulnerable to vibration caused by road or rail traffic;c) a corrugat

2、ed metal sheath has good flexibility;d) a corrugated metal sheath with a smooth outer covering is easy to handle during installation;e) the same type of cable can be laid direct in the ground or polled into ducts;f) such a sheath resists moderate crushing stresses and provides protection against most of the damage causedby stones or digging tools;g) if the plastic covering of steel-sheathed cables is damaged, rapid corrosion may be expected.Reference1 CCITT manual Outside plant technologies for public networks, ITU, Geneva, 1988, Part IV-A, Chapter III, 1.2.2.