Instructions for labor protection when working in the area of location of communications at a depth of more than 2 meters

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions for labor protection when working in the area where communications are located at a depth of more than 2 meters. Full document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

Excavation work should be mechanized as much as possible. If it is impossible to use mechanisms, it is allowed to excavate the soil manually. Excavation work is carried out in accordance with the work plan, which determines their sequence and order.

In the area where underground communications are located (electric cables, gas and water pipelines, etc.), excavation work is permitted only with the written permission of the organization responsible for their operation. The permit is accompanied by a plan (diagram) indicating the location and depth of communications, drawn up on the basis of as-built drawings.

When approaching communication lines, excavation work is carried out under the supervision of the work contractor, and in the immediate vicinity under the supervision of employees of the organization that is responsible for their operation.

Excavation of soil in the immediate vicinity of existing underground communications is allowed only with the help of shovels, without sharp blows; the use of impact tools (crowbars, picks, wedges, pneumatic tools, etc.) is prohibited.

Persons at least 18 years of age who have been instructed in labor safety and have mastered practical skills for safe work are allowed to carry out earthworks.

At night, the work site must be illuminated and surrounded by protective barriers. While performing excavation work, the worker must be dressed in proper overalls and safety shoes.

2. Safety requirements before starting work

Before starting work, it is necessary to prepare and check the tool. The shovel must be tightly packed onto the holder and secured with a screw (nail). The holder must be made of hard and tough wood (maple, oak, elm, etc.), the surface of which must be smooth, without burrs, splits or knots. The blade of the shovel must be sharply sharpened.

Before starting work, you must make sure that there is permission for its production.

3. Safety requirements during work

When performing work, you must pay attention to the depth limitation. Digging a trench: with vertical walls without fastening and in the absence of underground communications near a depth of no more than:

1 m in bulk, sandy and gravel soils;
1,5 m in clay soils;
2 m in particularly dense soils that require the use of crowbars, picks, and wedges for development.

Under other different conditions, the vertical walls should be secured with boards, which are laid behind vertical posts, close to the ground and reinforced with spacers.

Dismantling of plank fastenings of pits and trenches should be done in the direction of the ground.

Pit pits and trenches developed in the winter without fastening and with fastenings, the onset of a thaw, after prolonged precipitation are subject to inspection and, if necessary, additional fastening.

Before digging the earth, you must take a stable position to prevent your feet from slipping: you must press down on the shovel with the sole of your shoe from the shovel and lose balance.

The blade of the shovel should be placed at a safe distance from the feet, avoiding hitting it with hard objects (metal, stones, reinforced concrete structures, etc.) because In this case, the shovel may fall off and cause injury.

It is impossible to clean the shovel from the ground by hitting hard objects.

The distance between workers must be at least 2 m, the excavated soil must be removed at a distance of at least 0,5 m from the edge of the trench or pit.

To avoid a collapse, you cannot select soil by digging and be in trenches: pits during excavations with excavators and other mechanisms.

4. Safety requirements after completion of work

After completing the excavation work, it is necessary to tidy up the workplace and clean the tools.

Remove and clean overalls and safety shoes, and wash your face and hands with warm water and soap. Inform the manager about the completion of the work, as well as about any problems and what measures have been taken to correct them.

5. Safety requirements in case of emergencies

If, during excavation work, unknown objects are discovered that are not indicated in the plans and diagram of underground communications, it is necessary to immediately stop the work: inform the work manager about this. Work is permitted to continue only after the nature of communications has been clarified and the appropriate permission has been obtained.

If explosive materials and ammunition are found, proceed to work only after they have been removed by sappers.

When harmful gases appear, work is stopped and people are removed from the work site to a safe distance.

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