Decree No. 22 / 1976 Coll.
Decree of the Czech Labour Safety Authority on ensuring safety of work in stable bulk containers
Valid
Effective from 01.04.1976
22
DECLARATION
Czech Labour Safety Authority
of 23 December 1975
on ensuring safety of work in stable bulk containers
The Czech Labour Safety Authority, in agreement with the competent authorities and organisations, provides in accordance with § 5 (1) (d) of Act No. 174 / 1968 Coll., on State Professional Safety Supervision:
General provisions
Scope
The decree covers the design, construction, production, operation, operation, maintenance, repair and reconstruction of stable bulk containers.
Within the meaning of this Decree, all containers in which a material of more than 1500 mm may be stored shall be regarded as stable bulk containers (hereinafter referred to as "bulk containers') and which are:
(a) fixed in one place, including containers placed under ground or floor level; or
(b) removable but temporarily built in one place and forming part of workplace and transitional equipment.
Free matter (hereinafter referred to as "materials') are those which consist of individual particles and have no consistency other than friction-induced cohesion and the quantity of which is indicated by volume or weight.
Design, design and manufacture of containers
(1) When designing and constructing containers and their accessories, it shall be based on a calculation taking into account all static and dynamic forces acting on the container. Subject to the conditions laid down in specific provisions (1), the design documentation of the containers shall be approved.
(2) The shape, dimensions, design material and the design of the containers must correspond to the characteristics of the materials (in particular the tendency to self-ignition, chemical reactivity, aggressiveness) for which they are intended to be stored and must be chosen taking into account the need to reduce dust and noise levels as much as possible. 2) At the same time they must ensure their uniform emptying either automatically or using auxiliary technical devices (vibrator, pneumatic pads, aeration agents, mixers, etc.).
(3) The outer shell and supporting structure of the containers for flammable materials must be non-flammable material.
(4) The storage tanks shall be equipped with protection against lightning and the effects of static electricity according to the relevant regulations. 3)
(5) The containers intended for the storage of materials which may result in a sudden increase in pressure (e.g. explosion) during their operation must be equipped with a device enabling the release of the pressure wave, such as an explosive valve, a burst membrane.
(6) Containers in which freezing materials are stored and intended for operation also during the freezing period must be equipped with appropriate freezing equipment; the type of equipment must be selected taking into account the characteristics of the material stored.
(7) Containers in which all functional and handling points are not directly visible from the control point shall have appropriate audible and light-signalling devices. The sound alarm shall be at least 10 decibels higher than or different from the ambient noise.
(8) Dust storage tanks must be equipped with devices to prevent pollution of the working environment.
(9) The upper edges of the hopper for manual loading shall be rounded.
(1) Stacks which are at risk of arching shall be equipped with a device to disrupt those arches.
(2) The mixers and other mechanical disruptors of vaults, funnels and overhang shall be protected against overload by appropriate equipment (e.g. slip coupling, staple element, heat protection of the engine). The possibility must be excluded that broken or fallen parts of such devices endanger persons or equipment, or that they enter the stored material or the technological process.
(3) The location and shape of the controls and the forces required to control them must comply with ergonomic principles. The main switch of the electromotor drive of the container equipment shall be capable of being secured in the off-mode position.
(4) Drivers must be always accessible and their purpose and function permanently and clearly marked with symbols or inscriptions in Czech or Slovak language.
(5) The containers designed after 1.1.1980 shall be equipped with a device that reliably indicates the height of the material stored without the need for the operator to enter the container.
Floors, platforms, footboards, staircases and ladders
(1) The operating, installation, dismantling and maintenance workspace floors must be flat, without any breach which would reduce their safety and must not be slippery. The outside floors shall be so designed that water, for example from the grate, is not held on them and its drain must be secured.
(2) For service and control posts above the level of the floor, platforms or bridges with a width of 600 mm or more and an underpass height of 2100 mm or more shall be established. Exceptionally, the underpass height may be reduced locally to 1900 mm, except for the operating site. In such cases, the reduced positions shall be suitably adjusted (oblique linings, elastic linings, etc.) and coloured.
(3) Platforms and pegs above the floor level must be equipped with a double-bar rail at least 1100 mm high on all free sides with a stop (protective bar) of 150 mm high. 4)
(4 Stairs and ladders shall comply with the relevant regulations. 5) The rungs of ladders must have an anti-slip adjustment.
Covers and fences
(1) Covers and fences must meet the essential safety requirements corresponding to the causes and sources of danger, in particular:
(a) prevent access to sources of danger, dangerous contact or capture of persons and parts of their clothing;
(b) to protect persons and equipment from falling, departing or sprays;
(c) prevent the fall of persons;
(d) prevent unwanted intrusion of foreign objects into mechanisms or equipment;
(e) reduce noise, dust and prevent spraying.
(2) The size and shape of openings in shelters and fences must be chosen taking into account the distance between the source of danger from the cover, structure and size of the material stored and the possibility of forfeiting persons or objects. 6)
(3) Covers and fences must be secured against spontaneous release.
(4) Coats which serve at the same time for crossing or crossing shall be suitably designed and marked with an indication of the maximum permissible load for this purpose.
(5) The protection of electrical equipment shall comply with the environment in which the electrical equipment is used. 7)
Inputs and openings into containers
(1) Inputs in containers and accessible openings shall be secured by a lockable grate or lid which must be locked during operation. Exceptionally, if this is not possible for technological reasons, they shall be protected by a barrier of at least 1100 mm high.
(2) The arches shall be designed at the points of their intended formation.
(3) The grates to be crossed for operational reasons shall not have openings of one size greater than 60 mm and their strength shall be in accordance with operating conditions.
(4) If operational reasons so require, the lattice openings may be larger but not more than 300 x 300 mm. However, it is forbidden to walk on such bars, which must be marked.
(1) The openings for entry into containers shall not have any dimension of less than 700 mm.
(2) No outlets or other components may interfere with the inlet space.
Space conditions
(1) Transit profiles under tanks must comply with specific regulations, (8) in particular with the provisions for the spatial adjustment of underpasses or crossings by any construction, construction or device that crosses or interferes with the top of public or non-public communications. This provision shall not apply to containers located outside or on roads reserved for a particular type of means of transport (e.g. narrow track, special means of transport); However, the appropriate warning marks shall be placed on these containers.
(2) Specific rules apply to the crossing conditions on lifts. 9)
(1) The containers from which the material is carried by vehicles must bear the largest dimensions of the vehicles allowed to pass; the following minimum distances shall be maintained between their largest contour and the nearest structures:
(a) 600 mm in the case of an isolated obstacle (pillar, pillar, track, etc.) of less than 300 mm;
(b) 750 mm for continuous obstacles (wall, ramp, ceiling, etc.).
(2) These obstacles must be marked with a safety colour. 10)
(3) The workspace at the storage tanks shall be arranged in such a way that, in the event of danger, the operator can quickly withdraw from the vulnerable area and allow for fire-fighting intervention.
Discharge holes and container closures
The shape and dimensions of the discharge holes shall comply with the characteristics of the stored materials and shall be secured in such a way as to prevent entry into the container. The number and distribution of discharge holes shall comply with the provisions of Paragraph 4 (2).
(1) The type of container closure shall be chosen taking into account the required function, environment, properties of stored materials and operational requirements (dustness, etc.). The seals shall be easily controllable and shall allow the material to be gradually moved and the container emptied.
(2) In the case of containers placed in premises where the life or health of workers could be endangered in the event of an accident, or where major damage could arise, the closure of the discharge holes must be fitted with an insurance device enabling their immediate closure.
(3) The structure of the cap shall allow the removal of the closing element without disassembly of the motor drive as well as the replacement of the drive at the closed passage of the stored material.
Manual and mechanical control of the seals shall be easily accessible. Control of emptying of the container shall be ensured from the control point. The cap or its actuator shall be adjusted or placed in such a way as to prevent unauthorised handling.
Obligations of the manufacturer
The manufacturer (supplier) shall indicate the container permanently in visible place with the following information:
(a) the manufacturer (supplier);
(b) the year of manufacture (construction) and, where appropriate, the production number;
(c) energy used;
(d) the type of material the container is intended to store;
(e) the maximum permissible weight or volume of material to be stored;
(f) the prescribed characteristics of the material to be stored.
With each container, the manufacturer (supplier) shall supply the accompanying technical documentation, which shall include in particular:
(a) technical parameters and description of the container;
(b) dates and scope of inspections, maintenance and periodic repairs;
(c) method of operation, controlled and prohibited handling,
(d) the measures necessary for proper and exceptional entry into the container;
(e) the method of fire protection, established with regard to the material stored and any fire-fighting action, including fire extinguishers.
Operation, operation, maintenance and repair
(1) The operator shall designate in writing a manager responsible for the operation and technical condition of the containers and personnel for their operation, maintenance, repair and inspection, unless they are performed in a supplier's way. It shall also determine the qualification requirements, obligations and responsibilities of such staff.
(2) Only mentally and physically competent workers may operate the containers, (11) over 18 years of age, theoretically and practically trained and in writing mandated to operate the containers. Their knowledge must be checked regularly, at least once a year, by the operator and recorded.
The operator shall, with the prior approval of the ROH racing committee and the relevant labour safety inspector and in accordance with this Regulation, the operator manual developed by the manufacturer (supplier) and taking into account its own conditions, develop more detailed rules on safety and health at work for operation, operation and maintenance (Section 272 (2) of the Labour Code). They provide for qualification requirements (§ 17 (1)), deadlines for checking the competence of workers (§ 17 (2)) and time limits for checking the container.
In particular, to ensure the safe operation of containers,
(a) to compile stored material around the filler openings of deep-sea containers and containers located below the floor level only up to 1500 mm above the surrounding ground or floor level;
(b) ensure correct illumination of the containers, their accessories and their surroundings according to the relevant regulations, 12)
(c) identify the sources of danger with safety colours, signs and tables, 13)
(d) to provide additional and additional measures to ensure safe work in a harmful environment;
(e) identify the worker to whom the key to the bars and entrances will be entrusted;
(f) determine how the replacement key is to be stored;
(g) to ensure special conditions for extremely dangerous work;
(h) determine the type, meaning and use of warning signs and inform the relevant staff;
(i) determine, in accordance with the principles laid down by the manufacturer, the method of maintenance, cleaning, periodic repairs and inspections of containers and the dates for their regular emptying;
(j) keep an operating journal of the container with data on maintenance, operation, cleaning, faults and repairs of the container, on the output and return of the key from the grates and through the storage tanks, and on incidents and measures;
(k) identify the method of securing workers and workplaces during the maintenance and repair of containers and during work breaks;
(l) to equip the workplace with first aid pharmacists (14) and ensure that there is at least one worker in each working shift who controls the principles of first aid provision;
(m) to provide initial and periodic medical examinations of workers intended to operate containers, at least at the dates laid down by the relevant health regulations, 11)
(n) have emergency personal protective equipment and work equipment available for immediate intervention in the event of an emergency, depending on the nature of the materials and operations stored.
(1) The operator responsible for checking must check the container, including the accessories, within the time limits specified in the rules issued by the operator and in the manner indicated therein. If these rules so determine, the worker responsible for operating must draw attention to the start of the container with a specified warning signal.
(2) In the event of a defect affecting the safety of persons or equipment, the container shall be immediately disabled. It may not be restarted until the fault has been removed.
(3) Before leaving the workplace, the designated worker must ensure that the container and its equipment cannot be activated and against the entry of unauthorised persons.
(4) For unforeseen circumstances, the spare key shall be stored in such a way as to allow for accelerated access to the container.
It is prohibited
(a) to activate the container if it is inside a person, or if it is damaged or deactivated by a safety device, or if other defects have been detected which threaten the safety of persons or equipment;
(b) recharge the container or fill it in a manner specified by the manufacturer;
(c) use safety devices as operating controls;
(d) deactivate security and communication devices, damage or improperly remove security signs and tables;
(e) to clean, correct, adjust or delete functional and movable parts of the container in service unless the container is designed for such a procedure;
(f) to operate and repair containers and their accessories without a prescribed qualification;
(g) to enter places which are not work spaces and roads, to crawl or climb the railings of work crossings, platforms, catwalks and other enclosed spaces;
(h) to stay in designated hazardous areas and enter the container without permission;
(i) release the discharge hole to release the cut-off material.
(1) Only a responsible manager may allow entry into the magazine, who shall determine, in accordance with the rules (§ 18), the working procedure, the way of signalling and the way of securing the worker and shall enter it in the operating log; in the case of rescue work, make a supplementary entry in the diary.
(2) Before commencing work within the magazine, the responsible manager shall give appropriate instructions for this purpose.
(3) Before entering the magazine, the manager responsible must in particular:
(a) stop the supply and collection of material;
(b) ensure that the anti-commissioning container is provided in the manner specified in the rules;
(c) mark the container with a safety mark indicating that work is being done inside the container;
(d) open the container and ensure open protection bars against fall;
(e) verify that there are no harmful substances in the container and, accordingly, equip the persons entering with, for example, a breathing apparatus, a safety lamp, a fireproof suit,
(f) check the device allowing entry into the container.
(4) Every worker's entry into and stay inside the magazine must be provided with at least two additional workers, trained for the job. The worker entering the container shall be fitted with a safety belt, supplemented by a parachute vest and handcuffed by a securing rope. 15)
(5) Entry into the smoldering material container shall be prohibited; in exceptional cases, only a responsible manager may allow entry in accordance with the rules (Paragraph 18) and under conditions laid down by specific provisions. 16)
(1) When removing defects in the container (vaults, sinuses, fungi, overhang), the responsible manager must manage and pay particular attention to the work
(a) to enter the container by means of fixed continuous ladders or lifting devices (platforms, baskets, cages, gangways, etc.), complying with the relevant safety regulations, or by means of a portable ladders, if it is possible to hang it inside the container and to secure it in this position;
(b) that the worker within the container does not reach deeper than one metre below the upper limit of the material overhang or funnel produced by him and does not enter the material stored;
(c) that the safety ropes are still tight and provided by authorised personnel on two opposite sides;
(d) that the workers inside the container are kept in constant contact with the agreed signs.
(2) Upon completion of the work within the container, the responsible manager shall lock the openings of the container and record the work in the operating log.
(1) The closing of the discharge openings of the container must be maintained in such a condition as to ensure their reliability at all times.
(2) Before filling the container with material, the operator must check the status of the lids and bars, in particular whether individual rods are broken and whether the lids and grids are locked.
(3) If defects are detected on the grids, the operator shall, pending the removal of the defects, take measures to prevent persons from falling into the reservoir.
(4) When filling vehicles or transport equipment at the container, the material may only be rectified from a safe position of tools for that purpose.
Safety belts, additional and safety ropes, or other personal protective equipment, shall be stowed in the prescribed manner. After each use, these products shall be cleaned, dried and placed in the usable state. Regular inspections and tests shall ensure their reliability.
(1) The container and its accessories must be checked before each entry into service.
(2) The result of the check referred to in paragraph 1 shall be recorded in the operating logbook. The minutes shall include details of the measures proposed to address the deficiencies identified.
For containers used to store materials where the risk of self-ignition, fire or explosion is present, fire protection measures corresponding to the type of material stored shall be provided and, in view of the potential self-ignition, its characteristics monitored and checked on an ongoing basis. Similar measures must also be taken around the container. In order to reduce the risk of explosion or fire, regular cleaning must be carried out especially on the surface and around the container.
Transitional and final provisions
(1) The storage tanks designed, manufactured and used before the entry into force of this Order must be adapted in accordance with it no later than three years after its entry into force. This adjustment is not necessary for the stop (§ 6 (3)) if the amount is at least 100 mm.
(2) For containers put into service before the date of application of this Decree, which cannot be modified for technical reasons within a three-year period, the operator must take other effective measures within the same period to achieve the objectives pursued by this Decree.
(3) In the case of wooden containers, the equipment shall be considered as complying with paragraph 2 and replacing the requirement of Paragraph 4 (3) by means of an internal casing made of non-flammable material or, where appropriate, by carrying out fire impregnation of wooden parts of the containers. The fire impregnation shall be renewed within the time limits specified by the paint manufacturer.
This decree does not apply to containers which are subject to supervision by the authorities referred to in § 3 (2) of Act No. 174 / 1968 Coll.
Efficacy
This Decree shall take effect on 1 April 1976.
Chairman:
Dr Bartek v. r.
1) Decree of FMTIR No. 163 / 1973 Coll., on documentation of buildings.
2) Directive No 32 / 1967 of the State Department of Health (Health Regulations of St. 28 / 1967) on the protection of health against adverse effects of noise.
3) ČSN 34 1380 Protection against dangerous effects of static electricity. ČSN 34 1390 Regulations for protection against lightning.
4) ČSN 73 8106 - Protective and detention structures.
5) ČSN 73 4130 - Stairways. Basic provisions. ON 73 4134 - Steel staircases and railings in industrial buildings. ČSN 74 3282 - Steel ladders. Basic provisions.
6) ČSN 73 8106 - Protective and detention structures.
7) ČSN 34 1470 - Electrical equipment in places with fire or explosion risk. ČSN 34 0110 - Regulations for electrical items.
8) ČSN 73 5105 - Industrial production buildings.
9) Rules of technical operation of lifts - PTPV reg. in amount 75 / 1964 Coll.
10) ČSN 01 2720 Safety colours.
11) Directive No 49 / 1967 of the Ministry of Health of the Czech Republic (Bulletin of the Czech Republic No 22- 24 / 1967), as amended by No 17 / 1970 of the Czech Republic and Methodological Measures No 19 / 1970 (Bulletin of the Czech Republic No 9- 10 / 1967) on the assessment of medical fitness for work.
12) ČSN 36 0035 Daily lighting of buildings. ČSN 36 0046 Artificial lighting in industrial plants.
13) ČSN 01 2720 Safety paints. ČSN 01 2725 Guidelines for colour adjustment of the working environment. ČSN 01 8010 Safety Communication. General provisions. ČSN 01 8012 Safety marks and tables. Annex Model of safety marks.
14) ON 84 6635 first aid pharmacies. Basic provisions. Equipment.
15) ČSN 83 2611 Protective belt. Technical requirements and testing.
16) ČSN 07 4009 Safety regulations for equipment for preparing coal powder for steam boilers.
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Regulation Information
| Citation | Decree of the Czech Labour Safety Authority No. 22 / 1976 Coll., on ensuring the safety of work with stable bulk containers |
|---|---|
| Regulation Type | - |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 15.03.1976 |
|---|---|
| Effective from | 01.04.1976 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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