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Instructions for labor protection when using safety ropes. Full document

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

Safety requirements

1. Safety rope - a means of collective protection designed to secure one or more safety belts working with a carbine when working at height, consisting of a flexible steel rope located horizontally or with an inclination of up to 7°, the ends of which are fixedly fixed to the structural elements of buildings and structures directly or through special elements.

The rope is equipped with a device for attaching it to structural elements of buildings and structures, tensioning it and changing its length depending on the distance between the attachment points.

2. Ropes must be manufactured according to standards or specifications for ropes of specific designs. It is prohibited to use ropes manufactured at work sites without drawings or standards (in a handicraft manner).

The design of the rope must exclude the possibility of injury to the worker’s hands. Rope parts must not have tears, burrs, sharp edges, cracks or holes.

3. When making a safety rope, the steel rope must be marked with the following indication:

• number, trademark (or name of the manufacturer);
• values ​​of static breaking force;
• date of manufacture (month, year);
• test dates (month, year);
• designation of the standard or technical specifications according to which the rope is made.

4. The rope should be installed above or at the level of the support plane for the feet.

The installation height of each rope from the plane of the support for the feet is determined by measuring with a metal ruler at the places where it is attached at the ends, and the distance between the points of attachment for a rope length of more than 12 m is determined with a steel tape measure.

5. In general, when choosing the installation height of a safety rope, the following safety rules should be observed: the installation height must be at least 1,5 m from the surface of the support for the feet when walking under a tensioned rope (trusses, beams, crossbars and similar structures with shelves up to 300 mm wide) and no more than 1,2 m when crossing away from the rope (crane beams).

6 To tension the safety rope, you must first roll it out (the safety rope is stored wound into a coil) on the workshop floor (ground), then alternately raise its ends to a height and securely fasten them using tension devices to the outer structures. Pre-tension it using a tension coupling until the slack is completely removed. Then the rope is laid in hooks pre-fixed to intermediate structures every 6 - 12 m, and final tension is applied to impart the required force to the rope.

7. Walking along the upper chords of steel trusses, as well as along the upper and lower chords of prefabricated reinforced concrete trusses and roof beams is prohibited. In some cases, when necessary, such movement is allowed in the “sitting-crawl” position by the size of one panel (1,5 +/- 3 m), attached with a safety belt to the upper belt of the truss or a safety rope.

8. When the length of the rope is more than 12 m, intermediate supports must be installed, the distance between which should not be more than 12 m, and the surface of the intermediate support with which the rope comes into contact should not have sharp edges.

The intermediate support and its fastening points must be designed for a vertical static load of at least 500 kg.

9. The static breaking force of a steel rope installed at a height of more than 1,2 m from the plane of support of the worker’s feet must not be less than 4040 kg, and a rope installed at a height of up to 1,2 m must not be less than 5600 kg.

10. For the manufacture of safety ropes intended for installation at a height of more than 1,3 m from the plane of support for the feet, steel ropes with a diameter of 8,8 mm, 9,1 mm and 9,7 mm are used; and for a rope installed at a height of up to 1,2 m - steel ropes with a diameter of 10,5 mm and 11,0 mm.

The use of ropes from other materials must be justified by standards or technical specifications for ropes of specific designs.

11. When installing the rope above the plane of the support for the feet, it is necessary to pre-tension it with a force of 100 kg to 400 kg, depending on the distance between the points of fastening the rope.

Pre-tensioning of the rope is carried out before installing it on intermediate supports. The force on the handle when tensioning the rope should not exceed 16 kg.

The amount of pre-tension should be controlled by the amount of sag in the middle of the span of the tensioned rope in accordance with the table:

12. When installing a rope at the level of the support plane for the feet, you should not pre-tension it, and the length of the rope is selected in such a way that the rope fixed at the ends and tensioned in the middle with a force of 10 kg does not extend beyond the overall dimensions of the structural elements on which it is installed.

13. The fastening parts of the steel rope, as well as structural elements of buildings or other devices to which it is attached, must be designed for a horizontally applied load equal to 2200 kg and acting for 0,5 s.

14. The rope before operation, as well as every 6 months during operation, must be tested with a static load applied in the middle of the span by a load weighing 400 kg, which is applied to the rope installed in the working position through flexible ropes (nylon or steel) or a steel rod.

15. Upon completion of work at height, the safety rope is removed, lubricated, rolled into a coil and stored.

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