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Foreword1 General provisions2 Terms3 Basic regulations4 Construction preparation4£®1 Machinery preparation4£®2 Preparation of crossing constructio4£®3 Preparation of stringing pulley block4£®4 Selection and preparation of traction equipment of primary guide rope4£®5 Channel construction permits5 Tension stringing5£®1 Layout of traction and tension sites5£®2 Laying of guide rope£¬ traction rope and ground wire5£®3 Major construction calculations of tension stringing5£®4 Tension stringing operation 6 Tightening line6£®1 Tightening operation6£®2 Observation and adjustment of sag6£®3 Marking7 Accessories installation7£®1 Installation of anchoring tower accessories7£®2 Marking on straight tower7£®3 Installation of straight tower accessories7£®4 Installation of anti-vibration device and spacer7£®5 Installation of jumper8 Construction quality and safety measures8£®1 Construction quality8£®2 Major safety measures9 Environmental protectioExplanation of wording in this codeList of quoted standards Statement