The temporary wires shall be overhead to ensure the safety of electricity use
.
Electric welding machine, butt welding machine and cutting machine must be equipped with rainproof shed and good grounding device
.
Check the stability of soil wall and support every day or after rain, and continue to work under the condition of ensuring safety
.
7
.
13
.
Rainproof measures shall be taken, and doors shall be installed and locked
.
If there is an underground pipeline under the sidewalk at the entrance of vehicles, it must be laid with thick steel plate or reinforced with concrete
.
In case of over excavation, loose soil shall not be backfilled to avoid affecting the quality of foundation
.
Operators shall carefully check the equipment when they are on duty, and turn off the on-site electrical knife switch when they are off duty
.
In case of thunderstorm, outdoor operation must be stopped to prevent people from being injured by lightning
.
Acetylene cylinder and oxygen cylinder shall be equipped with safety flashback preventer, and rubber pipe joint shall be fixed with tie head
.
It is not allowed to drag them on the ground to prevent rolling
.
In the process of operation, employees should strictly abide by the safety production rules and regulations and operation procedures of the unit, obey the management, and correctly wear and use labor protection articles
.
The cables used in the construction must be carefully checked and confirmed to be safe before use; the power supply of all live equipment must be cut off before moving
.
5、 The welder must wear protective clothing
.
1.5m high guardrail must be set around the foundation pit, and a certain number of temporary construction stairs shall be set
.
11
.
They can enter the operation post only after being approved by the person in charge of the construction site and signed by both parties after passing the examination
.
Before construction, we should first find out whether there are deep pits, tombs, underground pipelines, high and low pressure lines and surrounding structures, and formulate corresponding measures to avoid damage
.
3
.
If the foundation is too poor, reinforcement measures such as walkway board should be taken
.
16
.
When excavating the foundation pit, practical drainage measures must be taken to avoid water accumulation in the foundation pit, which will affect the soil structure of the foundation pit
.
In case of thunder, rainstorm and strong wind above level 6, the operation must be stopped and the power supply must be cut off
.
8
.
Before operation, all tools, welding machines, power switches and lines shall be checked to see if they are in good condition
.
The slope and bottom cleaning personnel must do the bottom cleaning work according to the design elevation, and no over excavation is allowed
.
The earth moving vehicles should not run parallel to the foundation pit to prevent the collapse and overturning
.
3、 Construction machinery operation safety disclosure 1
.
The machinery shall not work under the transmission line, but shall work on one side of the transmission line
.
4
.
Regular inspection shall be conducted once every seven days
.
4、 Safety technical disclosure of foundation pit excavation 1
.
Regular maintenance once a month, with inspection and maintenance records
.
9
.
8
.
3
.
Slippers, high-heeled shoes, slippery shoes, barefoot, shirtless, open and drunk are strictly prohibited
.
6
.
For manual excavation, the distance between the front and back operators should not be less than 2-3m, and the soil should be piled more than 1m, and the height should not exceed 1.5m
.
7
.
12
.
3
.
The excavated earthwork shall be stacked in strict accordance with the organization design, and shall not be piled outside the foundation pit, so as to avoid the ground overload and soil displacement or support damage
.
It is strictly forbidden to construct under the high-voltage line
.
4
.
Ensure good visibility during operation
.
It is not allowed to hang the lamps on the steel bars or other metal components
.
Check whether the joint of scaffold is firm and whether the safety protection settings are complete
.
6
.
It is strictly forbidden to work at height for those who are drunk or suffer from hypertension, heart disease or epilepsy
.
If pipes, cables and other buried objects are found in the excavation, they shall be reported in time and shall not be handled without authorization
.
9
.
1、 General construction safety knowledge disclosure 1
.
The distribution box shall be equipped with leakage protection switch, so that one machine has one switch and one protection
.
10
.
The installation and removal of all power wires in the construction site must be managed by the licensed electrician, and the electrical appliances must be strictly grounded, connected to zero and used with leakage protector
.
Pay attention to the stability of the soil wall when excavating
.
When cracks and collapse are found, the personnel should leave immediately and deal with them in time
.
4
.
2
.
15
.
The oxygen cylinder shall be strictly protected from grease, including grease clothes, gloves, etc
.
The distance between the arc spark point of electric welding and oxygen cylinder, calcium carbide barrel, acetylene cylinder, wood, oil and other dangerous goods shall not be less than 10m, and the distance between the arc spark point and explosive goods shall not be less than 20m
.
5
.
All mechanical and electrical equipment shall be effectively grounded or connected to zero
.
Steel bar cutting, batching, bending and other work should be carried out on the ground, not at high altitude.
.
2、 Safety disclosure of temporary electricity use in construction 1
.
Do not operate the machine tired or sick
.
Soil and other objects shall not be piled on the support, and shall not walk or stand under the support
.
When working in the field, the welding machine should be placed in a well ventilated place
.
9
.
3
.
The on-site production electrical equipment shall be managed by special personnel
.
Welders must work with certificates
.
The minimum safe allowable construction distance between the edge of pile frame and the high-voltage line is 6m for the high-voltage line below 10kV, 8m for the 35-110kv high-voltage line, 10m for the 220kV high-voltage line and 15m for the 350-500kv high-voltage line
.
The bucket is not allowed to pass over the cab
.
4
.
The vertical height between the bottom of fixed distribution box and switch box and the ground shall not be less than 1.3m, and the vertical distance between the bottom of mobile distribution box and switch box and the ground shall be more than 0.6m
.
Unloading soil to the vehicle should be carried out after the vehicle stops stably
.
Sufficient lighting must be provided for night operation
.
3
.
Regular and irregular inspection and maintenance of mechanical equipment and electrical equipment
.
When excavating foundation pit, if it has influence on adjacent buildings (structures) or temporary facilities, safety protection shall be taken and displacement observation shall be strengthened
.
Electricians, welders, lifting workers, climbing workers, forklifts, crane drivers and other special workers must work with certificates
.
3
.
Signs shall be set up when burying underground
.
Patients and children under 18 years old are strictly prohibited to participate in the construction
.
7
.
When dismantling and repairing, the warning board of “no closing” shall be hung at the closing place, and special person shall be assigned to take care of it
.
All vehicles shall be directed and guided by special personnel
.
Electrified operation is not allowed when the electrician is wiring
.
Sufficient lighting shall be provided for construction at night
.
4
.
The welding machine must adopt zero connection and leakage protection to ensure the safety of operators; the welding wire and the connecting wire of welding tongs should be reliably insulated
.
14
.
The metal shell shall be safely and reliably grounded or connected to neutral
.
2
.
Welding machines are not allowed to work in places with high humidity (relative humidity over 90%), high temperature (above 40 ℃), harmful industrial gases, inflammables and explosives
.
The lines on site must be arranged in order according to the regulations
.
The roads in the site shall be renovated in time to ensure the safety and smoothness of vehicles
.
It is forbidden to hold it by hand, and a protective box shall be set outside to cover or face the no man’s land
.
The incoming and outgoing lines shall be provided with complete protective cover, and the incoming and outgoing ends shall be firmly welded with copper joints
.
6
.
2
.
5
.
All kinds of machinery must be operated according to the operating procedures, and the parts or functions of the machine must not be changed at will
.
Read and follow the warning and danger signs
.
5
.
The new workers shall receive three-level safety education before taking up their posts
.
2
.
8
.
It is not allowed to stop or drive the excavator track at 2m parallel to the excavated foundation pit
.
Arc welding welders should wear protective masks
.
If any hidden danger is found, it shall be replaced and repaired in time
.
Before using the cutting machine, it is necessary to check whether the mechanical operation is normal and whether there is secondary leakage protection; flammable materials are not allowed to be stacked behind the cutting machine
.
When starting a new welder or a welder that has been stopped for a long time, the performance of the welder should be checked
.
The slope and bottom cleaning workers who cooperate with the dragline are not allowed to work under the mechanical turning radius
.
No matter in any case, the nearest distance between any part of the machinery and the overhead transmission line shall meet the requirements of safety operation regulations
.
Corresponding protective measures must be taken during the construction
.
Irrelevant personnel are strictly prohibited to tamper with electrical equipment
.
2
.
The short reinforcement less than 30cm shall be cut and clamped with forceps
.
The “three-phase five wire system” shall be adopted for the main line of construction
.
The machine should stop on a solid foundation
.
Guardrail and safety net shall be set for high place and edge operation
.
5
.
The initial insulation resistance of the welder should not be less than 0.5 megohm
.
Manual excavation shall be used within 1m on both sides of the cable
.
5
.
