Mechanical construction safety protection measures?

First, after the construction machines and tools are delivered to the construction site, they must be confirmed to meet the requirements through inspection and acceptance, and the safety operation procedures and the sign of the person in charge of the equipment shall be hung in obvious places before use.

Second, the metal shell and base of electrical equipment must be connected by PE wire, and the head end of equipment load line must be equipped with leakage protector. For the equipment that generates vibration, the connection points between the metal base, the shell and the PE line shall not be less than two.

Three, each electrical equipment must be set up independent special switch box, must implement the "one machine one brake" and according to the calculation load of the equipment set up supporting control appliances.

Four, the construction site carpentry, steel, concrete, hoist, air compressor must build fortification hit, rain-proof operation shed. The horizontal distance between the switch box and the machine shall not exceed 3m, and its power supply line shall be fixed through pipes. When operating, opening and closing, you should be able to see the working conditions of all parts of the machine.

Five, the site machinery and equipment are strictly prohibited to work in spite of illness, and maintenance is prohibited during operation. When the operator leaves the machine or loses power during operation, the power supply must be cut off.

Six, all kinds of equipment should be installed in accordance with the provisions, meet the requirements of the safety protection device.

Seven, the operator should be a special plane, and wear labor protection articles in accordance with the provisions.

Eight, homework personnel should be in accordance with the provisions of the mechanical maintenance work at all levels. Maintenance shall not be carried out during the operation of the machine.

Nine, mobile power tools, mechanical handrails should have insulation protection, load line should use rubber sheathed copper core flexible cable, operators must wear insulating supplies in accordance with the provisions.

Ten, the use of submersible pump into the water or put out of the water, you must first cut off the power supply, it is forbidden to pull the cable or outlet pipe.

Eleven, motor dump truck driver should hold a certificate of special operations personnel. When driving, the hopper must be locked, and it is forbidden to carry people in the hopper. When unloading at the pit edge, a safety stop should be set, and when approaching the pit edge, slow down. When the pilot gets off the plane, he should turn off the internal combustion engine and hang up the handbrake.

Twelve, the safety protection of welding equipment shall comply with the following provisions:

1 The welder should be placed in a well-ventilated, dry and non-corrosive medium, away from high temperature and dusty places, and should be placed in the open air with rain-proof facilities;

2 welding machine must be equipped with a separate power switch and automatic power-off device. The length of the primary side power cord shall not exceed 5m, and the length of the secondary welding handle cord shall not exceed 30m. Terminals on both sides are firmly connected and must be equipped with reliable protective covers.

3 The welding cable shall be a multi-strand copper-core flexible cable with waterproof rubber sheath and no joint. Protective measures must be taken when cables pass through channels and vulnerable places. It is forbidden to use scaffolding, metal railings, steel bars and other metal objects to lap instead of wires;

4 The welding site should be well ventilated and free of inflammable and explosive substances, otherwise it should be removed or protective measures should be taken;

5 Oxygen cylinders should be more than 0/0m away from open flame/kloc-and not less than 5m away from acetylene cylinders. The gas in the bottle should not be completely exhausted, and the residual pressure should be above 0. 1Mpa;

6 Special hoses shall be used for gas welding and gas cutting, and other gases and liquids shall not be introduced. Two hoses cannot be mixed together (oxygen hose is red, acetylene hose is black);

7 oxygen and acetylene cylinders should be equipped with pressure reducers, and the pressure reducers should be checked before use, without looseness, air leakage and oil pollution.

Thirteen, the safety protection of vertical transportation machinery shall comply with the following provisions:

1. The installation and disassembly of vertical transportation machinery should be carried out by professionals with corresponding contracting qualifications, and their working procedures should be carried out in strict accordance with the original mechanical drawings and specifications, and a safety operation plan should be formulated according to the site environmental conditions;

2. Before delivery, the vertical transport machinery reinstalled at the transfer site shall be tested and inspected according to relevant standards, and the reliability and sensitivity of each safety device shall be tested, and it can be put into use only after it is confirmed that it meets the requirements. The test data shall be included in the safety technical files of the equipment;

3. The foundation of the crane must be able to bear the maximum load under working and non-working conditions, and meet the requirements of crane stability;

4. Except for the construction elevator that is allowed to carry people according to regulations, it is strictly forbidden for other cranes to carry people during the lifting process;

5. Crane drivers and signal commanders should receive professional training, pass the examination, and obtain the operation certificate issued by the relevant departments before they can operate at their posts;

6. Before each shift, the crane driver should check the brakes, wire ropes and safety devices, and all institutions should run with no load. If any abnormality is found, it should be ruled out.

7. The crane driver must ring the alarm bell before starting the machine;

8. It must be operated correctly according to the technical performance and use conditions specified in the factory manual of vertical transportation machinery, and it is strictly forbidden to overload or expand the scope of use;

9. When the crane is in working condition, maintenance, repair and manual lubrication are strictly prohibited. When maintenance work is needed, warning signs must be hung in an eye-catching position;

10. During the operation, the crane driver shall not leave his post without authorization or hand it over to a foreign driver for operation. After work, turn all control handles to zero position, disconnect the main power supply and lock the electrical box.

1 1. The materials and properties of the maintenance and replacement parts shall be the same as those of the original vertical transportation machinery parts; The purchased parts shall have descriptions of materials and performance; Material substitution shall not reduce the requirements specified in the original design; After maintenance, it shall pass the test according to the requirements of relevant standards; Mechanical maintenance data should be included in the equipment file.

Fourteen, the operation and use of tower crane shall comply with the following provisions:

1. Before the tower crane runs, check the track and remove obstacles; Check the wear of metal structures, connecting bolts and wire ropes; Before power transmission, each controller handle should be operated at zero position and no load, and each mechanism and safety device should be tested and confirmed to be normal;

2. During tower crane operation, it is forbidden to overload, stay and lift objects with unknown weight buried underground;

3. When lifting bulk objects, special hanging cages or containers shall be made, and materials shall not fall off during lifting. Before use, the hanging cage or container should be tested under the load of twice the allowable bearing capacity, and checked regularly during use;

4. When hoisting steel pipes, steel bars and other slender materials, it must be confirmed that the slings are firmly bound to prevent the sliding materials of the slings from being scattered during hoisting;

5. The distance between two or more tower cranes (including hanging objects) should not be less than 2m; When the requirements cannot be met, measures such as adjusting the working height of adjacent tower cranes, adding travel limit devices and rotary limit devices should be taken, and the operating procedures for cross operation should be formulated;

6. Tower cranes are not allowed to carry out lifting operations or walk by lifting objects on corners;

7. The power supply cable of the track tower crane shall not mop the floor; Cables suspended vertically along the tower should be suspended by reliable devices, which will not be strained and worn by the cable's own weight;

8. After the operation, the tower crane should stop in the middle of the track, turn the boom to the downwind direction, and release the slewing brake. The lifting trolley and counterweight should be in non-working state.

Fifteen, the operation and use of the construction elevator shall comply with the following provisions:

1. Before each shift is used, the metal structure, guide rail joint, hanging cage, power supply, control switch and interlocking device of the construction elevator shall be inspected, and no-load operation test and brake reliability test shall be carried out;

2. The rated load test of the construction elevator shall start from the lowest floor during the first operation of each shift, and shall not run from top to bottom. When the cage is lifted off the ground 1m ~ 2m, stop and test the reliability of the brake;

3. The hoisting cage of the construction elevator must be clearly marked with the load limit and the number of passengers allowed, and it must be approved by the driver before operation. Overload operation is strictly prohibited;

4. The construction elevator driver should operate according to the command signal, and should sound the horn before operation; Before getting off the plane, the driver must lower the cage to the ground floor, cut off the power supply and lock the electric box.

5. The anti-falling safety device of the construction elevator shall not be disassembled and adjusted at will, and shall be appraised or overhauled by the manufacturer or the designated authorized unit within the specified time limit.

Sixteen, the operation and use of material hoist shall comply with the following provisions:

1. Before each shift, the material lifting frame, cable wind rope, wall-attached frame and various safety protection devices shall be inspected, and they can be put into use only after the no-load running test confirms that they meet the requirements;

2. When the material hoist is running, the material should be evenly distributed in the hanging basket, and it is not allowed to overload or exceed the hanging basket;

3. When the material hoist is running, a unified signal command should be set up. When there is no reliable contact measure, the driver shall not start the machine; The crown block shall be contacted by communication device or equipped with camera display device;

4. Don't dismantle the safety device of the material hoist at will. When the safety device fails, stop the machine immediately for repair;

5. It is forbidden to climb the material hoist or ride its hanging basket up and down;

6. When the driver of the material hoist gets off work or leaves the machine temporarily, the hanging basket must be lowered to the ground, and the power supply should be cut off and the electric box should be locked.

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