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State standard of the Union of the USSR.

GOST 12.4.059-89

Group T58

INTERSTATE STANDARD

SYSTEM OF OCCUPATIONAL SAFETY STANDARDS

CONSTRUCTION

INVENTORY SAFETY GUARDS

General technical conditions

Occupational safety standards system.
Construction. Protective inventory safeguards.
General specifications

Date of introduction 1990-01-01

INFORMATION DATA

1. DEVELOPED by the Central Research and Design and Experimental Institute of Organization, Mechanization and Technical Assistance to Construction of the USSR State Construction Committee

INTRODUCED by the State Construction Committee of the USSR

2. APPROVED AND ENTERED INTO EFFECT by Resolution of the State Construction Committee of the USSR dated April 13, 1989 N 66

3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

	Number of paragraph, subparagraph


	2.2.12; 2.2.17; 3.2

4. REPUBLICATION. July 2001

This standard applies to inventory fences workplaces at height and passages to them (hereinafter referred to as fencing), used to protect people from falling in places with differences in height during the construction of new and reconstruction of existing buildings and structures.

The standard does not apply to shields and decking intended to cover horizontal openings, protective canopies, horizontal safety devices, as well as to fences that are integral structural elements scaffolding means, installation and other types of technological equipment.

Explanations of terms used in this standard are given in Appendix 1.

1.1. The type of fencing is determined by the combination of characterized properties indicated in the table.

Characterized property	Type name fencing according to the characterized property	Designation type of fencing according to the characterized property
1. Functional purpose	Protective
	Safety
	Signal
2. Installation location relative to the boundary of the workplace near the height difference	Internal
	External
3. Method of attaching the fence to building elements	Support
	Mounted

1.2. The following structure of the fencing symbol is established:

An example of a symbol for a protective outer support fence:

Fencing Protection Nzh Op GOST 12.4.059-89

1.3. Fencing diagrams and their symbols are given in Appendix 2.

2. TECHNICAL REQUIREMENTS

2.1. Fences must be manufactured in accordance with the requirements of this standard and technical documentation approved in the prescribed manner.

2.2. Characteristics

2.2.1. Safety barriers are designed for strength and resistance to the alternating action of both horizontal and vertical uniformly distributed standard loads of 400 N/m (40 kgf/m) applied to the handrail.

In places intended for occupancy of no more than two people, it is allowed to take as a normative concentrated load equal to 400 N (40 kgf), alternately applied both horizontally and vertically anywhere along the length of the handrail.

2.2.2. Safety fences are designed for strength and resistance to the action of a horizontal concentrated load of at least 700 N (70 kgf) applied at any point along the height of the fence in the middle of the span, and external safety fences, in addition, for strength to the action of a load weighing 100 kg falling from height 1 m from the level of the workplace in the middle of the span.

2.2.3. The load reliability factor for protective and safety fencing should be taken as 1, 2.

2.2.4. The deflection value of the handrail of the protective fence under the influence of the design load should be no more than 0.1 m.

2.2.5. The height of protective and safety fences (the distance from the level of the workplace to the lowest point of the upper horizontal element) must be at least 1.1 m, signal fences - from 0.8 to 1.1 m inclusive.

2.2.6. The distance between the attachment points of protective and safety fences to stable structures of a building or structure (the length of one section of the fence) should not exceed 6.0 m, signal ones - up to 12.0 m is allowed.

2.2.7. The distance from the boundary of the difference in height to the fence should be for:

External protective and safety - within 0.20-0.25 m;

Internal safety - at least 0.30 m;

Signal - at least 2.0 m.

Protective internal fences are installed without limiting the distance from the boundary of the height difference.

2.2.8. The distance between horizontal elements in the vertical plane of the protective fence should be no more than 0.45 m.

2.2.9. The height of the side element of the protective fence must be at least 0.10 m.

2.2.10. The mesh size of mesh fences should be no more than 0.05 m.

2.2.11. The design of fastening fences to building structures should exclude the possibility of their spontaneous unfastening.

2.2.12. Signal fencing must be made in the form of a rope, not designed for loads and attached to racks or stable structures of the building (structure), with safety signs hung in the form of regular triangles yellow color with a black border with a side of at least 100 mm. Design of safety signs is in accordance with GOST 12.4.026, the distance between signs should be no more than 6 m.

2.2.13. The breaking load of the synthetic mesh mesh must be at least 1750 N (175 kgf).

2.2.14. When calculating the strength of mesh fencing, it is necessary to take into account the service life of the network materials and their aging.

2.2.15. Parts and assemblies of fencing weighing more than 25 kg must have mounting loops or other devices for slinging.

2.2.16. Elements of fencing structures should not have sharp corners, cutting edges, or burrs.

2.2.17. The surface of the filling elements of protective and safety fences must be painted with yellow signal paint in accordance with GOST 12.4.026.

Before painting with disperse dyes, synthetic mesh fabric must be impregnated with bitumen varnish BT-577 in accordance with GOST 5631, diluted with white spirit or turpentine.

2.3. Requirements for materials, components and protective coatings

2.3.1. For the manufacture of fences, rolled steel grade C235 is used in accordance with GOST 27772, aluminum alloys of grades AMg6 and 1915 in accordance with GOST 4784, lumber from softwood wood of at least grade 2 in accordance with GOST 8486, mesh fabrics made of synthetic materials, etc.

2.3.2. Synthetic mesh fabrics must be made from nylon or lavsan twisted ropes with a diameter of 3.1 mm, with technological shrinkage during finishing no more than 10%, standard humidity no more than 1%. The mesh fabrics are braided along the contour with a nylon cord with a diameter of 8 mm. The strength characteristics of network materials during testing must correspond to the design ones.

2.3.3. Elements of fences made of rolled metal must be primed and painted at the manufacturer with paints and varnishes corresponding to a slightly aggressive environment in accordance with SNiP 2.03.11. Coating class - VII according to GOST 9.032.

Before painting, the surface of the fencing elements must be cleaned to degree 4 according to GOST 9.402.

2.4. Completeness

2.4.1. The set of fencing supplied to a consumer enterprise must include up to 20 pieces of fencing of the same type, an instruction manual, and a quality document.

2.5. Labeling and packaging

2.5.1. Elements of fencing of the same name (posts, frames, horizontal rod elements, etc.) made of rolled metal must be bundled together with wire.

2.5.2. Small parts(clamps, clamps, etc.) must be packed in wooden boxes in accordance with GOST 18617.

2.5.3. Mesh fabrics must be packed in bags.

2.5.4. Each package and box with metal fencing elements, as well as a bag with mesh fabrics, must have a sign containing:

Trademark and name of the manufacturer;

Symbol of the fence;

Date of manufacture (month, year);

For mesh fabrics, the date of the last test and strength data.

2.5.5. The documentation included in the delivery set must be wrapped in a plastic film bag in accordance with GOST 10354 and securely attached to the kit with wire or handed over to the consumer upon direct receipt of the fencing kit.

2.6. Service life of fencing, subject to consumer compliance with requirements operational documentation indicated in technical conditions for fencing of a specific type and must be at least:

5 years - metal elements;

2.5 years - wooden elements and synthetic mesh fabrics.

3. ACCEPTANCE

3.1. To verify compliance of fencing with the requirements of this standard, the manufacturer must carry out acceptance inspection of fencing, based on the results of which a decision is made on their suitability for supply and use.

3.2. Each fence must be subjected to acceptance control in the following sequence:

Checking the completeness;

Checking the compliance of the material and dimensions with the working drawings;

Checking the integrity of elements;

Checking the quality of welds, ropes, bolts, nails and rivets for compliance with the requirements of technical documentation;

Checking compliance of signal painting with the requirements of GOST 12.4.026.

3.3. The results of the acceptance are reflected in the quality document.

4. CONTROL METHODS

4.1. Inspection for the presence of cracks, cuts, kinks, sharp edges, burrs and welds is carried out visually before painting.

4.2. The quality of the materials from which the fencing elements are made should be established by certificates or determined by the results of laboratory tests.

4.3. The quality of painting of fencing elements is determined visually in accordance with GOST 9.032.

4.4. The geometric dimensions of the fences are checked measuring instruments or templates providing measurement accuracy up to 1 mm.

5. TRANSPORTATION AND STORAGE

5.1. Transportation and storage of fences should be carried out in accordance with conditions 5 according to GOST 15150.

5.2. Loading, unloading, transportation and storage of fences must be carried out under conditions that prevent their deformation and damage to the paintwork. It is not allowed to drop fences during unloading or transport them by dragging.

5.3. Synthetic mesh fabrics should be stored in places that prevent them from becoming dirty, exposed to high temperatures, or exposed to direct sunlight.

6. OPERATING INSTRUCTIONS

6.1. Fences must be operated in accordance with the requirements of this standard, SNiP III-4 and the operating instructions for fencing.

6.2. Control over the good condition and correct use of fences during operation, installation and dismantling is entrusted to the engineering and technical workers of construction and installation organizations (work foreman, foremen, local mechanics), determined by order of the organization.

6.3. Fences must be included in the standard set and assigned to a complex or specialized team by order of the construction and installation organization, and from among the workers of the team, specially trained persons should be assigned to carry out their installation and dismantling.

6.4. Periodic inspection of fences must be carried out by a foreman (work performer) and consist of: visual inspection(checking) the good condition of assembly units and fencing elements.

6.5. Elements of fencing with detected defects must be replaced or repaired.

6.6. Operation of fencing with synthetic materials is allowed at temperatures environment from minus 40 to plus 40 °C.

6.7. Hot work should be carried out at a distance of at least 1.5 m from synthetic mesh to avoid reducing their strength.

6.8. Installation and removal of fences should be carried out in a technological sequence that ensures the safety of construction and installation work. The length of the fenced area is established in technological maps.

6.9. Persons installing and removing fences must use safety belts to secure them during work to securely installed structures of the building (structure) or to a safety rope.

6.10. Dismantled fences must be placed in containers to be transported by crane to the next installation level.

7. MANUFACTURER WARRANTY

7.1. The manufacturer guarantees that the fences comply with the requirements of this standard.

7.2. The warranty period for the operation of fencing, provided that the consumer complies with the conditions of transportation, storage and operation established by this standard, is 18 months from the date of commissioning.

ANNEX 1
Information

TERMS AND EXPLANATIONS

	Explanation
Safety fence	Fencing of workplaces at height and passages to them, the structures of which are located in a vertical plane, serving for preventing a person from falling
Protective fence	A safety fence used to prevent unintentional human access to the boundary of a height difference
Safety fence	A safety fence that provides restraint to a person if he loses stability near the boundary of a drop in height
Signal fence	A safety fence designed to mark a hazardous area within which there is a risk of falling from a height.
Internal fencing	Safety fence installed within the workplace up to the height difference
External fencing	Safety fence installed outside the workplace near the height difference boundary
Filling the fence	Fencing element located between supports or vertical surfaces of building structures
Support fencing	A safety fence that has a supporting structure element (support, frame, etc.) used for hanging filling
Fencing mounted (Fencing Zsch Vn Nv GOST 12.4.059-89) 1 - building column; 2 - floor slab; 3 - filling; 4 - clamp; 5 - safety sign The text of the document is verified according to: official publication System of occupational safety standards: Sat. GOST.- M.: IPK Standards Publishing House, 2001

CONSTRUCTION.
SAFETY GUARDS
INVENTORY

GENERAL TECHNICAL CONDITIONS

GOST 12.4.059-89

STATE CONSTRUCTION COMMITTEE OF THE USSR
Moscow

STATE STANDARD OF THE USSR UNION

Failure to comply with the standard is punishable by law

This standard applies to inventory fencing for workplaces at height and passages to them (hereinafter referred to as fencing), used to protect people from falling in places with differences in height during the construction of new and reconstruction of existing buildings and structures.

The standard does not apply to shields and decking intended to cover horizontal openings, protective canopies, horizontal safety devices, as well as to fences that are integral structural elements of scaffolding, installation and other types of technological equipment.

Explanations of terms used in this standard are given in Appendix 1.

1. TYPES

1.1. The type of fencing is determined by the combination of characterized properties indicated in the table.

1.2. The following structure of the fencing symbol is established:

2.2.3. The load reliability factor for protective and safety fencing should be taken as 1, 2.

2.2.4. The deflection value of the handrail of the protective fence under the influence of the design load should be no more than 0.1 m.

signal - at least 2.0 m.

Protective internal fences are installed without limiting the distance from the boundary of the height difference.

2.2.8. The distance between horizontal elements in the vertical plane of the protective fence should be no more than 0.45 m.

2.2.9. The height of the side element of the protective fence must be at least 0.10 m.

2.2.10. The mesh size of mesh fences should be no more than 0.05 m.

2.2.11. The design of fastening fences to building structures should exclude the possibility of their spontaneous unfastening.

2.2.12. Signal fencing must be made in the form of a rope, not designed for loads and attached to racks or stable structures of the building (structure), with hanging safety signs in the form of regular yellow triangles with a black border with a side of at least 100 mm. Design of safety signs is in accordance with GOST 12.4.026, the distance between signs should be no more than 6 m.

2.2.13. The breaking load of the synthetic mesh mesh must be at least 1750 N (175 kgf).

2.2.14. When calculating the strength of mesh fencing, it is necessary to take into account the service life of the network materials and their aging.

2.2.15. Parts and assemblies of fencing weighing more than 25 kg must have mounting loops or other devices for slinging.

2.2.16. Elements of fencing structures should not have sharp corners, cutting edges, or burrs.

2.2.17. The surface of the filling elements of protective and safety fences must be painted with yellow signal paint in accordance with GOST 12.4.026.

Before painting with disperse dyes, synthetic mesh fabric must be impregnated with bitumen varnish BT-577 in accordance with GOST 5631, diluted with white spirit or turpentine.

2.3. Requirements for materials, components and protective coatings

2.3.1. For the manufacture of fences, rolled steel grade C235 is used in accordance with GOST 27772, aluminum alloys of grades Amg6 and 1915 in accordance with GOST 4784, lumber from softwood wood of at least 2nd grade in accordance with GOST 8486, mesh fabrics made of synthetic materials, etc.

2.3.2. Synthetic mesh fabrics must be made from nylon or lavsan twisted ropes with a diameter of 3.1 mm, with technological shrinkage during finishing of no more than 10%, and a standard humidity of no more than 1%. The mesh fabrics are braided along the contour with a nylon cord with a diameter of 8 mm. The strength characteristics of network materials during testing must correspond to the design ones.

Before painting, the surface of the fencing elements must be cleaned to degree 4 according to GOST 9.402.

2.4. Completeness

2.4.1. The set of fencing supplied to a consumer enterprise must include up to 20 pieces of fencing of the same type, an instruction manual, and a quality document.

2.5. Labeling and packaging

2.5.1. Elements of fencing of the same name (posts, frames, horizontal rod elements, etc.) made of rolled metal must be bundled together with wire.

2.5.2. Small parts (collars, clamps, etc.) must be packed in wooden boxes in accordance with GOST 18617.

2.5.3. Mesh fabrics must be packed in bags.

2.5.4. Each package and box with metal fencing elements, as well as a bag with mesh fabrics, must have a sign containing:

trademark and name of the manufacturer;

symbol of the fence;

date of manufacture (month, year);

for mesh fabrics, the date of the last test and strength data.

2.6. The service life of fencing, provided that the consumer complies with the requirements of the operational documentation, is indicated in the technical specifications for fencing of a particular type and must be no less than:

5 years - metal elements;

2.5 years - wooden elements and synthetic mesh fabrics.

3. ACCEPTANCE

3.2. Each fence must be subjected to acceptance control in the following sequence:

checking for completeness;

checking the compliance of the material and dimensions with the working drawings;

checking the integrity of elements;

checking the quality of welds, ropes, bolted, nailed and rivet connections for compliance with the requirements of technical documentation;

checking compliance of signal painting with the requirements of GOST 12.4.026.

3.3. The results of the acceptance are reflected in the quality document.

4. CONTROL METHODS

4.1. Inspection for the presence of cracks, cuts, kinks, sharp edges, burrs and welds is carried out visually before painting.

4.2. The quality of the materials from which the fencing elements are made should be established by certificates or determined by the results of laboratory tests.

4.3. The quality of painting of fencing elements is determined visually in accordance with GOST 9.032.

4.4. The geometric dimensions of fences are checked using measuring tools or templates that ensure measurement accuracy of up to 1 mm.

5. TRANSPORTATION AND STORAGE

5.1. Transportation and storage of fences should be carried out in accordance with conditions 5 according to GOST 15150.

5.3. Synthetic mesh fabrics should be stored in places that prevent them from becoming dirty, exposed to high temperatures, or exposed to direct sunlight.

6. OPERATING INSTRUCTIONS

6.1. Fences must be operated in accordance with the requirements of this standard, SNiP III-4-80 and the operating instructions for fencing.

6.4. Periodic inspection of fencing must be carried out by a foreman (work performer) and consist of a visual inspection (check) of the good condition of assembly units and fencing elements.

6.5. Elements of fencing with detected defects must be replaced or repaired.

6.6. Operation of fencing with synthetic materials is allowed at ambient temperatures from minus 40 to plus 40 °C.

6.7. Hot work should be carried out at a distance of at least 1.5 m from synthetic mesh to avoid reducing their strength.

6.9. Persons installing and removing fences must use safety belts to secure them during work to securely installed structures of the building (structure) or to a safety rope.

6.10. Dismantled fences must be placed in containers to be transported by crane to the next installation level.

7. MANUFACTURER WARRANTY

7.1. The manufacturer guarantees that the fences comply with the requirements of this standard.

ANNEX 1

Information

TERMS AND EXPLANATIONS

Term	Explanation
Safety fence	Fencing of workplaces at height and passages to them, the structures of which are located in a vertical plane, serving to prevent a person from falling
Protective fence	A safety fence used to prevent unintentional human access to the boundary of a height difference
Safety fence	A safety fence that provides restraint to a person if he loses stability near the boundary of a height difference
Signal fence	A safety fence designed to mark a hazardous area within which there is a risk of falling from a height.
Internal fencing	Safety fence installed within the workplace up to the height difference
External fencing	Safety fence installed outside the workplace near the height difference boundary
Filling the fence	Fencing element located between supports or vertical surfaces of building structures
Support fencing	A safety fence that has a supporting structure element (support, frame, etc.) used for hanging infill
Fencing	A safety fence that does not have a supporting structure and is hung directly on the building structures

APPENDIX 2

Information

FENCE DIAGRAMS AND EXAMPLES OF THEIR DESIGNATIONS

Protective internal support fence
(Fencing Zshch Vn Op GOST 12.4.059-89)

1 - filling; 2 - stand; 3 - side board; 4 - floor slab

Protective outer support fence
(Fencing Zshch Nzh Op GOST 12.4.059-89)

a) fastening to a blank wall

b) fastening to a window opening

1 - building column; 2 - z completion; 3 - clamp; 4 - floor slab

Safety outer support fence
(Fencing St Nr Op GOST 12.4.059-89)

1 - frame; 2 - filling; 3 - the place where the fence is attached to the wall of the building (through the embedded part); 4 - building wall

Signal internal support fence
(Fencing Sg Vn Op GOST 12.4.059-89)2 - floor slab; 3 - filling; 4 - clamp; 5 - safety sign

INFORMATION DATA

1. DEVELOPED by the Central Research and Design and Experimental Institute of Organization, Mechanization and Technical Assistance to Construction of the USSR State Construction Committee

INTRODUCED by the State Construction Committee of the USSR

PERFORMERS

V. A. Alekseev, Ph.D. tech. Sciences (topic leader); N. D. Levinson; V. I. Brodsky, Ph.D. tech. sciences; V. V. Botygin; V. A. Belyakov; V. V. Bakonin

2. APPROVED AND ENTERED INTO EFFECT by Resolution of the State Construction Committee of the USSR dated April 13, 1989 No. 66

3. INSTEAD GOST 12.4.059-78

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

Number of paragraph, subparagraph

SYSTEM OF OCCUPATIONAL SAFETY STANDARDS

CONSTRUCTION.
SAFETY GUARDS
INVENTORY

GENERAL TECHNICAL CONDITIONS

GOST 12.4.059-89

STATE CONSTRUCTION COMMITTEE OF THE USSR
Moscow

STATE STANDARD OF THE USSR UNION

Failure to comply with the standard is punishable by law

The standard does not apply to shields and decking intended to cover horizontal openings, protective canopies, horizontal safety devices, as well as to fences that are integral structural elements of scaffolding, installation and other types of technological equipment.

Explanations of terms used in this standard are given in .

1. TYPES

1.1. The type of fencing is determined by the combination of characterized properties indicated in the table.

Characterized property	Name of the type of fencing according to the characterized property	Designation of the type of fence according to the characterized property
1. Functional purpose	Protective
	Safety
	Signal
2. Installation location relative to the boundary of the workplace near the height difference	Internal
	External
3. Method of attaching the fence to building elements
3. Method of attaching the fence to building elements	Mounted

1.2. The following structure of the fencing symbol is established:

Example of a symbolprotective outer support fencing:

Fencing Zshch Nzh Op GOST 12.4.059-89

1.3. Fencing diagrams and their symbols are given in.

2. TECHNICAL REQUIREMENTS

2.1. Fences must be manufactured in accordance with the requirements of this standard and technical documentation approved in the prescribed manner.

2.2. Characteristics

2.2.3. The load reliability factor for protective and safety fencing should be taken as 1, 2.

2.2.4. The deflection value of the handrail of the protective fence under the influence of the design load should be no more than 0.1 m.

2.2.7. The distance from the boundary of the difference in height to the fence should be for:

external protective and safety - within 0.20 - 0.25 m;

internal safety - not less than 0.30 m;