Installation of Electric Cables
Quote from Lloyd’s Register Rulefinder 2014 – Ver9.21Part 6 Chapter 2 Section 11 Electric cables, optical fibre cables and busbar trunking systems (busways)1.轻触语音条播放，再次触摸停止，暂不支持暂停及从断点处重新播放。退出本图文消息仍可在收听，不影响微信和手机其他功能使用。2.需要下载或使用暂停功能，建议在“喜马拉雅FM”网址或同名手机APP中搜索“某小女”，收听同步音频。5.insulating material 绝缘材料9.maximum rated conductor temperature 最高额定导线温度10.galvanic corrosion 电腐蚀11.8 Installation of electric cables
11.8.1. Electric and optical fibre cable runs are to be as far as practicable fixed in straight lines and in accessible positions.
11.8.2. Bends in fixed electric and optical fibre cable runs are to be in accordance with the cable manufacturer’s recommendations. The minimum internal radius of bend for the installation of fixed electric cables is to be chosen according to the construction and size of the cable and is not to be less than the values given in Table 2.11.6. 11.8.2 固定电缆和光纤走线中的弯曲应与电缆生产商的推荐一致。敷设固定电缆的最小弯曲内径，应按该电缆的结构和规格来选择，并不得小于表2.11.6中所列数值。
11.8.3. The installation of electric and optical fibre cables across expansion joints in any structure is to be avoided. Where this is not practicable, a loop of electric cable of length sufficient to accommodate the expansion of the joint is to be provided. For electric cables, the internal radius of the loop is to be at least 12 times the external diameter of the cable. For optical fibre cables, the internal radius of the loop is to meet the manufacturers’ minimum recommendations.
11.8.4. Electric and optical fibre cables for essential and emergency services are to be arranged, so far as is practicable, to avoid galleys, machinery spaces and other enclosed spaces and high fire risk areas except as is necessary for the service being supplied. Such cables are also, so far as reasonably practicable, to be routed clear of bulkheads to preclude their being rendered unserviceable by heating of the bulkheads that may be caused by a fire in an adjacent space.
11.8.5. Electric cables having insulating materials with different maximum rated conductor temperatures are to be so installed that the maximum rated conductor temperature for normal operation of each cable is not exceeded.
11.8.6. Electric and optical fibre cables having a protective covering which may damage the covering of other cables are not to be bunched with those other cables.
11.8.7. Cables having an exposed metallic screen, braid or armour are to be installed in such a manner that galvanic corrosion by contact with other metals is prevented. Sufficient measures are also to be taken to prevent damage to exposed galvanised coatings during installation.