What are three guarantees, four mouths, and five linbian?

The three guarantees are: the safety helmets, safety belts and safety nets worn by workers during construction.

The four entrances are: reserved openings, elevator shaft entrances, passage openings, and stair openings of the project under construction. Barriers, covers, and netting are set up at the stair openings, elevator entrances, and reserved openings. Construction is ongoing. For the entrances and exits of buildings, well-shaped frames, and entrances and exits of gantry frames, protective sheds that meet the requirements must be erected and eye-catching signs must be set up.

The five edges are: the perimeter of floors, the sides of stairs, the sides of platforms or balconies, the perimeter of roofs, and ditches, pits, troughs, Abbreviation for edges such as deep foundation perimeter that endanger personal safety.

Extended information:

"Wulinbian" must install a double-layer fence of more than 1.0M or set up a safety net. The specific safety control points are as follows:

(1) The edges of deep foundations, stairwells, roofs, light wells, transfer platforms, balconies, both sides of pedestrian passages, and both sides of unloading platforms The sides must be protected by two steel pipes, and red and white marks must be painted on the steel pipes.

(2) Two protective railings must be erected on the outside of the temporary frame used to tie steel side beams and columns.

(3) Protective doors must be installed on the sides of the tic-tac-toe hoist and the unloading platform of the passenger and cargo elevator. The protective door must be a switch door welded with steel bars. Curved steel bars are not allowed to be used as protective doors.

(4) When working on the edge, safety warning signs must be set up.

(5) When the outside of the edge operation is close to the street, in addition to setting up protective barriers, toe boards and seals In addition to the safety netting, hard sealing measures such as wattle fences should also be adopted on the facade to prevent injuries from falling objects during construction.

Baidu Encyclopedia - Three Treasures

Baidu Encyclopedia - Four Mouths

Baidu Encyclopedia - Five Linbian