- ·client
- ·Building Lightning Rating Division
- ·Construction and installation of lightning tower
- ·How to maintain the tower
- ·Safety operation rules for high - altitude operation of towers
- ·Can the lightning tower be connected to the secondary ground?
- ·Tower installation quality control
- ·Ironweight galvanized quality control
- ·Rainy season construction measures
- ·New products-guyed telecomunication tower
"32 quota" about the problems that exist in the wireless communication antenna installation "32 quota" in wireless communications antenna installation including microwave communication and wireless LieDiao antenna installation subtitle microwave communication paraboloid antenna installation quota according to its diameter size is different, respectively, according to the concrete foundation base, hob, buildings and tower example, see "32 norm" of 2985 TY TY. 30 o8. The existing problems are: (1) when the antenna is installed on the concrete foundation base, before column foundation work content; (2) when the antenna is installed on the hob, before column steel fabrication and welding; (3) antenna is installed on the buildings, is installed on the concrete foundation of a building, or installed in the building on the hob or tower, and before column installation work in any of the above content; (4) antenna is installed on the tower, before the concrete foundation work content to column tower; (5) antenna is installed on the buildings, no matter use which kinds of form, especially when installed in the building on the tower, is likely to impact on building structure, it needs the work content is not included in the quota, the description is not clear. Example by wireless LieDiao antenna installation norm, will install antenna and feeder is column to a specific item, respectively, according to the antenna installed on the roof, electric pole and tower example, see "32 quota" TY of the 3148 a TY. 3150. Its existing problems are: (1) the antenna installed on the tower, is included in the materials of the tower, but with "city" as the unit, according to the 1995 annual price level, for 6 RMB 981.93/25/11 Eiffel Tower, the price of the large difference; (2) before column tower in concrete foundation work required. Above did not plan the columns of the work content, design units in the formulation of design budgetary estimate of when it may leak, or with no quota standards, can only be estimated investment.