污污污www精品国产网站_六十路av_午夜天堂av_台湾佬综合网_成人免费版欧美州_超碰色偷偷_西西444www无码大胆_亚洲拍拍视频_日韩欧美天堂_av在线网页_aaa亚洲精品_欧美一级爽片_精品在线一区二区_女郎av在线_午夜一区二区三区四区

Guangzhou Steel teach you: hoisting steel construction zone safety of the general provisions

Guangzhou Steel teach you: hoisting steel construction zone safety of the general provisions

1, lifting the region should set the security cordon, non-staff prohibited from entering.
2, lifting objects hanging from the ground 200mm ~ 300mm, should conduct a comprehensive inspection, and should officially lifted after confirmation.
3, when the wind speed reaches the 10m / s, should stop lifting work; when the wind speed reaches the 15m / s, shall lifting work.
4, high-altitude work using small hand tools and small parts should be taken to prevent the fall approaches.
5, the construction of electricity should be consistent with the current industry standard "construction site temporary electrical safety specifications" JGJ 46 of the relevant provisions.
6, the construction site should be professional personnel to install, maintain and handle electrical equipment and power lines.
7, every day hanging member when finished floor or roof is not installed on to, to be taken and reliable way for temporary fixing.
8, the pressure plate surface water, ice, frost or snow, should be promp