Decree of the Ministry of Interior No. 87 / 2000 Coll.
Ordinance of the Ministry of the Interior laying down the conditions of fire safety in welding and heating of nutrients in melting containers
Valid
Order
Effective from 01.07.2000
Text versions:
01.07.2000
12.04.2000
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87
DECLARATION
Ministry of Interior
of 31 March 2000
laying down conditions of fire safety when welding and heating nutrients in melting containers
According to § 24 (2) of Act No. 133 / 1985 Coll., on Fire Protection, as amended by Act No. 203 / 1994 Coll., ("the Act '):
INTRODUCTORY PROVISIONS
(1) This Decree lays down conditions of fire safety for:
(a) welding which means the heat bonding, slotting and thermal separation of metallic and non-metallic materials, provided that they are carried out by an open flame, electric arc, plasma, electrical resistance, laser, friction, aluminothermal welding as well as the use of electric solders and petrol soldering lamps; and
(b) the heating of lives in melting containers.
(2) The conditions of fire safety laid down in this Decree shall apply to the welding and heating of lizards in melting containers operated by legal persons and natural persons engaged in business activities under specific regulations. (1) Other natural persons (2) shall also be subject to fire safety conditions, unless otherwise specified.
For the purposes of this decree:
(a) dangerous concentration - concentration of a mixture of flammable gases, vapours or dust with air or other oxidiser from 25% of the lower explosive limit for gases, vapours and money;
(b) an explosion hazard area with a subsequent fire - an area separated or not by construction, including a device or part thereof (e.g., an inverter, a ventilation line, a pipeline) in which dangerous concentrations may occur or where explosives or substances containing explosives or other substances and materials are present and, in combination with the welding technology, may cause an explosion with a subsequent fire;
(c) a fire-hazard space - a space which is either separated or not, including a device or a part thereof (e.g. container, ventilation pipes, manifold manifolds), in which flammable or flammable substances supporting solid, liquid or gaseous or flammable substances contained in construction structures or installations are present and, in the case of the use of the welding technology, they may be ignited and a fire may occur;
(d) adjacent space - the space situated above, below and next to the welding workplace which may be threatened by the formation or spread of a fire due to activities carried out at the welding site;
(e) basic fire safety measures - technical and organisational measures to ensure fire safety before, during and after welding, including measures resulting from the type of welding equipment used;
(f) specific fire safety measures - technical and organisational measures to ensure fire safety before, during and after welding, taking into account the specific type of hazards referred to in (b) and (c), location of the welding plant, fire safety securing of the construction, fire protection system not only at the welding site but also in the adjacent areas referred to in (d);
(g) welding requiring special fire safety measures - welding in an area with fire hazard or explosion with subsequent fire, including adjacent spaces, requiring special fire safety measures as referred to in (f);
(h) welding workshop - working space defined for welding including technological equipment used for welding; the welding workplaces are also considered to be technological sites and handling areas where welding operations are carried out;
(i) fire surveillance - fire safety activity during, during and after the completion of welding requiring special fire safety measures;
(j) basic risk of welding - the risk which may result in the generation or spread of a fire or explosion resulting from the effects of heat by conducting, radiating or flowing (e.g. flame or electric arc temperature, spray of hot particles of metal and slag, discharge of hot matter from the cutting gap, heat radiation, high temperature of welded materials, high temperature of the gas from welding), and the presence of flammable and burning gases or current circuits of welding current;
(k) specific risk - the risk of a welding workplace with regard to the formation or spread of a fire or explosion followed by a fire, which is not entirely obvious to persons with a professional competence for welding (e.g. flammable insulation under material, hidden pipes leading to flammable or burning supporting substances, a flammable substrate covered by paint or heat-free material, open channels leading to flammable liquids);
(l) welding by electric current - welding by electrode, welding under melt, welding by electroslag, welding by non-melting electrode in the protection of inert gases (WIG / TIG), welding by electrode in the protection of inert gases (MIG), welding by electrode in the protection of active gases (MAG), welding by electrical resistance, welding by high frequency, welding or cutting and coating by plasma, welding and slotting by carbon electrode,
(m) starting welding - the first and every subsequent installation to become operational (e.g. burning of the burner, putting the welding equipment into operation) after leaving the welding plant.
CONDITIONS FOR INITIATING THE COMPETITION AND FOLLOWING THE COMPETITION
Conditions for initiating welding
(1) Prior to the start of the welding, the conditions for fire safety shall be evaluated in the areas in which it will be welded and in adjacent areas, as to whether it is not welding requiring special fire safety measures [§ 2 (g)]. In doing so, the fire hazards posed by flammable substances contained in construction structures (e.g. walls, ceilings, bulkheads) are also assessed. If conditions of fire safety change during welding, it may be continued after re-evaluation and appropriate basic or special fire safety measures.
(2) For welding requiring special fire safety measures, their securing shall be demonstrated in writing. In doing so, it is also based on requirements arising from the law and regulations on fire protection. 3) The temperature values of certain possible ignition sources during welding are given in Annex 2, Table 1. The scope of the special fire safety measures is set out in Annex 1.
(3) Specific fire safety measures shall also be based on evidence relating to the fire safety of technical equipment as well as to the technological process which is not part of the welding technology and which is present in the welding site as well as in adjacent areas.
(4) Before starting welding
(a) identify and evaluate potential fire hazards in relation to the type of welding, condition of the welding workshop and adjacent spaces, equipment and materials used and respond to them in the fire safety measures;
(b) define the authorisations and obligations of persons to ensure fire safety at the start of, during, during, during and after welding,
(c) lay down requirements for welding participants requiring special fire safety measures and for persons carrying out fire surveillance, including intervals for the performance of such supervision at interruption and after welding, unless fire surveillance is continuous (Section 4 (1) and (2), Annex No 1);
(d) lay down requirements for safe residence and movement of persons, including prohibitions;
(e) ensure free means of escape, including access to them;
(f) identify the operational conditions of the technical installations and the technological process, including conditions for any outage or restriction of operation;
(g) provide for additional measures taking into account the type of activity and, where appropriate, the specific risk of the welding plant.
(5) The formation and spread of a fire or explosion with a subsequent fire at welding sites and adjacent areas shall be subject to basic fire safety measures and, depending on the particular danger, special fire safety measures. With regard to the operating conditions concerned, one or more measures may consist in particular of:
(a) removal of flammable or flammable substances supporting or explosive substances;
(b) overlapping or sealing of combustible substances with non-flammable or difficult combustible material (degree of flammable A or B according to ČSN 73 0862), isolating the flammable substance from the ignition source so as not to ignite. During arc welding, material complying with the requirements of standard values may be used for hinges, belts or curtains, in a manner and at a distance which safely protects against hot particles from welding works as specified by the manufacturer or importer; the overlap shall be carried out in such a way that the flammable substance is not soaked in the covering material;
(c) adjusting the impact surface or covering the course of direct and reflected laser radiation from lasers III. (b) and IV.
(d) equipment by extinguishing means according to the nature of the workplace and the welding technology used;
(e) measuring the concentration of flammable gases, vapours of flammable liquids and dust mixed with air or other oxidiser and maintaining concentrations below the dangerous concentration limit;
(f) cooling of the structure,
(g) ventilation of the workplace to remove hazardous concentrations of flammable gases, vapours, dust;
(h) the placing of technical equipment against the spray of hot particles so as to reliably prevent the application of sparks, metal particles and slag.
(6) When welding is carried out which requires special fire safety measures repeatedly and at construction or similar welding workplaces for which these fire safety measures can be established in a uniform manner, this may be done in the appropriate working or technological process.
(7) In the case of welding, such heating of welded and other materials should be avoided which would result in loss of tightness or integrity of the device which would result in the leakage of flammable substances or burning of supporting substances.
(8) The overlying and sealing of the flammable substance shall be carried out in such a way that there are no exposed openings between the components of the material used to allow hot particles, flame or heat transfer.
(9) When welding requiring special fire safety measures, at least two persons, including the welder, shall be involved. One person can occupy the workplace only if it is welding, where the welder is able to cover all the acts associated with its own welding and fire safety measures.
(10) Welding shall not commence if:
(a) fire safety measures are not provided for in respect of the type and place of such work;
(b) welders and workers involved in welding and related activities are not demonstrably aware of the conditions of fire safety;
(c) the fire safety conditions are not met;
(d) welding at the welding workplace cannot prove its competence for welding by means of documents corresponding to the standard requirements or standard documents according to EN 45020 or issued under the approval of the certification body accredited in the Czech Republic; where there is no professional competence for a particular type of welding by such provisions, then an authorisation corresponding to the instructions of the manufacturer or importer of the equipment.
Conditions after welding
(1) At the end of the welding requiring special fire safety measures, fire safety of the welding plant and adjacent spaces shall be checked under fire surveillance and fire surveillance shall be ensured at specified intervals (Annex 1). The intervals shall be determined taking into account the basic or, where appropriate, specific risk of welding workplaces. The shortest time of fire surveillance is 8 hours. In justified cases, in particular in the case of heat separation of metals and sheathed spaces, account should be taken of the possibility of fire occurring after 8 hours when determining the period during which fire control is to be carried out.
(2) Fire surveillance shall be carried out by a person designated in advance with written rights and obligations in respect of such supervision. Fire surveillance shall be carried out continuously during welding. When the welding is interrupted or terminated, fire surveillance shall be carried out continuously for a specified period, or due to the nature of the work and space, at intervals specified by specific fire safety measures.
(3) Fire surveillance after welding is not necessary
(a) if the welding workplaces and adjacent spaces are equipped with an operable electrical fire alarm and a stable fire extinguisher. If these spaces are equipped with electric fire alarm only, fire surveillance may be waived only if the person on the ground is able to perform the initial firefighting intervention;
(b) at permanent welding workplaces in the event that, before the end of the welding, the hot particles could not be in contact with the flammable substances and after the technology was switched off, the flammable substances would not be in contact with the source of ignition.
ARRANGEMENTS OF COFFEE MATERIALS
Welding workplaces
(1) Welding workplaces intended for welding by construction project documentation (4) shall be considered as permanent welding workplaces; other are considered as temporary welding workplaces.
(2) Welding centres shall be secured in such a way as to avoid in particular:
(a) the creation of a fire or explosion followed by a fire and the spread of a fire;
(b) the creation of obstacles which make it difficult or impossible for persons to escape;
(c) threats to the lives and health of persons at fundamental and specific risks.
Those requirements also apply to adjacent spaces.
(3) Parts of equipment and materials are located at the welding site in such a way as to preserve the possibility of free passage and not to create confined and conflict points. Welding devices shall be secured in such a way as to prevent their movement or movement of their parts and thereby damage them, which would result in the creation or spread of a fire or an explosion followed by a fire with a possible difficulty in the conditions of escape of persons.
(4) Welded material shall be stored at the workplace in such a way as to prevent its movement or movement of parts of it which could cause damage to the welding equipment, in particular to the movable conductors and electrical parts of the welding equipment, the gas distribution, the hoses, the damage of which could result in the formation or spread of a fire and / or explosion with a subsequent fire.
(5) Transitional welding workplaces shall be equipped with suitable fire extinguishers and other fire extinguishers according to specific legislation. (5) In addition to these extinguishers, at least two portable fire extinguishers shall be equipped with suitable charges, of which one portable fire extinguisher shall be a powder extinguisher with a mass of at least 5 kg. In the case of welding in an apartment with regard to the type of welding, if the other premises of the building are not immediately threatened, the minimum equipment shall be one portable fire extinguisher powder with a mass of at least 5 kg.
(6) It is not possible to store or store flammable and flammable substances in permanent welding workplaces unless they are part of the technology. In the event that such substances are necessary in the technology, fire safety measures shall be laid down to prevent the possibility of fire or explosion, followed by fire, and to ensure the escape and evacuation of persons.
(7) Orders and prohibitions, or other relevant information, are marked by safety marking at the welding site and at the equipment. Warning and information tables indicating the type of gas and the quantity of cylinders shall also be placed at the entrance to the building where they are located.
(8) When welding on premises from 2 m high above sites to be protected against the effects of these works, protection zones shall be established from the point of view of the fire protection of the workplace. These zones shall specify the minimum distances from which flammable materials are removed or securely isolated before welding, or other effective measures shall be taken, in particular before the effects of hot particles. The protection zones shall be individually determined from the point of view of fire protection, taking into account the technology used and the welding method, so that the centre of the protection zone is always below the point of welding and a circle of 10 m radius in a horizontal plane is defined as the minimum. When welding at heights exceeding 2 m, the protection zone shall be extended by at least 0,3 m to 7 m for each additional 1 m height; for each additional 1 m height the protection zone shall be extended by 0,1 m to 20 m height. These increments are added to the radius. The protection zones for welding carried out at altitudes exceeding 20 m shall be determined individually. For the application of compressed gas technologies (e.g. oxygen cutting) and for the interaction of air flow for air speeds exceeding 1 m.sec-1, the protection distance shall be extended to the area defined by the ellipse up to 20 m according to the individual fire hazard assessment.
(9) The definition of permanent welding workplaces is clearly marked
(a) fire-safe distances, where its definition is provided for in the documentation relating to the installation; or
(b) protection zones (paragraph 7).
(10) Electric current conductors and gas-dispensing hoses shall be guided and stored in such a way as to avoid any damage to the welding process by sharp bending, material, grease, chemicals, the effects of the welding process, etc. In the event of a danger of mechanical damage, the device shall be protected with fixed covers.
(11) If any part of the welding device is damaged, welding cannot be initiated or continued.
(12) In the case of hydraulic-powered welding devices using flammable working media, the points of possible leakage of flammable media shall be protected by covers similar to those of flammable substances [paragraphs 12 and 3 (5) (b)].
(13) Welding on machinery and equipment in an area where dangerous concentrations may occur may only be carried out on machines and equipment which cannot be removed from the space. It is necessary to remove flammable money from space, machinery and equipment, to prevent the leakage of dust into space, machinery and equipment and to measure the concentration of explosive dust in the air before and during welding.
(14) Welding can only be done on machines and equipment which are blocked against unwanted start-up.
(15) Replacement of fresh air supply with oxygen supply is unacceptable.
(16) In areas where flammable gases, vapours or money may occur, pressure cylinders with gases for welding or acetylene developers and power sources for welding works shall not be placed. Each time they leave these spaces, burners and supply hoses for welding gases are removed from the premises.
(17) With containers, pipes and devices which cannot be reliably identified as being of fire hazard, they shall be treated as if they were of fire hazard.
(18) If there is a risk of withdrawal of welding wires or hoses, these shall be fixed to a rigid structure or to another suitable fixed device.
(19) If more than one person is involved in the welding, the means of mutual communication shall be established in advance.
(20) The welder instructs the welding source to be switched on, or the circuit after it is ready to start work and take the working position.
Welding using flammable gases
(1) In particular, oxygen, air, acetylene, hydrogen, liquefied hydrocarbon gas, which is generally propane, butane or their mixture (propane-butane), natural gas and artificial gas mixture MAPP, are used in flame welding. The highest temperatures achieved during the combustion of selected gases are given in Annex 2, Table 2.
(2) In the case of pressure cylinders, distribution of technical gases and their accessories, leakage of joints and seals are detected by non-flammable liquids (e.g. water with foaming agents) which do not contain fats and other substances which could cause a reaction.
(3) When handling the welding equipment, the unlit gas shall not leak to the workplace in a quantity representing a dangerous concentration.
(4) When the acetylene is removed from the cylinder, a check shall be made for any heating of the bottle above 50 ° C. In the event of an exothermic reaction in a cylinder, the procedure for handling the cylinder shall be laid down in writing, based on the conditions laid down by the manufacturer or importer.
(5) After transport of an acetylene cylinder to the welding workstation, acetylene removal can be started at the earliest 1 hour. This condition may not be complied with provided that the bottles have been transported vertically and have not been placed before use. The vial when acetylene is taken shall be vertical or inclined upwards at an angle of not less than 30 ° from the horizontal position.
(6) In the event of a fire at a welding workplace where pressure cylinders and other pressure vessels with welding or other gases are placed or are present in dangerous vicinity of the workplace, they shall be immediately removed to a safe place. Preferentially remove the full pressure cylinders and other full pressure vessels. The specific procedure shall be based on the fire safety requirements established by the manufacturer or importer. If such handling is not possible, the fire protection intervention unit shall be notified of the cylinders and pressure vessels, including their contents, located in a burning or endangered area.
(7) When handling oxygen cylinders and oxygen accessories, it is necessary to exclude:
(a) their contamination with fats and substances or materials containing fats;
(b) the use of materials not complying with fire safety conditions according to the type of welding technology.
(8) Pressure cylinders are protected against fall, roll-over or roll-over at welding sites. The means of security shall be chosen in such a way as to allow their easy and safe release. The cylinder shall be placed in a fixed position during welding operations in such a way that the means of transport or transport, moving parts of the device, or any movement of the material, are not jeopardised.
(9) Pressure cylinders intended for welding works may not be stored at the welding site in an area with fire or explosion hazard.
(10) The flammable gas cylinder can only be placed where dangerous concentrations are excluded when a gas leak occurs.
(11) The emptying of cylinders and other pressure vessels may not be accelerated by direct heating of bottles with an open flame or other heat sources which are not permitted by the manufacturer or importer's instructions. The operator's regulations shall specify which form of heating and what surface temperatures are permitted for a specific content of cylinders and pressure vessels.
(12) The transfer of liquefied petroleum gases and acetylene dissolved under pressure is permitted only by authorised organisations.6)
(13) If the gas ignites from the leakage of the reducing valve, bottle valve, hoses and other fittings, the cylinder valve shall be closed immediately and the flame extinguished.
(14) When the flame is fired back and burned inside the burner, the valves of flammable gas and oxygen on the burner are immediately closed and the burner is cooled.
(15) If the flame enters the hose and the reduction valve, the cylinder valve shall be immediately sealed on the flammable gas cylinder and then on the oxygen bottle. The burner can only be ignited after removal of the cause and effect of the backfiring.
(16) The fire-safe distance between the cylinders of the welding device using flammable gases and the source of open fire at the workplace shall be at least 3 m, unless the manufacturer or importer determines another distance for the particular device as safe.
(17) Where welding works are carried out at the welding workplace using flammable gases with multiple welding devices, cylinders shall be placed at least 3 m apart or separated by a non-flammable solid wall which exceeds the height of the package by at least 0,2 m and the width of the package by at least 0,1 m.
(18) For welding work using flammable gases, welding hoses differentiated for flammable gases and oxygen are used. The shortest hose, as well as the part of the hose, shall be at least 5 m long without setting the couplings; other length is permitted only if the manufacturer or importer so provides for specific equipment.
(19) The welding cylinder cannot be placed in the working pit.
(20) The samples of acetylene on the acetylene tubes shall be equipped with a dry or water design. The protective distance between the water pattern and the flame shall be at least 3 m and the protective distance between the dry pattern shall be at least 1 m.
(21) When welding, acetylene developers shall be considered as having an explosion hazard with a subsequent fire.
(22) Portable acetylene developers designed for welding can only be used
(a) in well-ventilated spaces with a minimum volume of 100 m3; in the case of another technical solution, it is necessary to demonstrate that at least the same level of fire safety has been achieved;
(b) indicating the location of the developer by safety plates;
(c) ensuring protection against undesirable manipulation of equipment.
(23) Manipulating open fire within 3 m of the portable developer is not permitted unless otherwise specified by the manufacturer or importer.
(24) When repairing an acetylene developer by welding, these developers shall be considered as having a risk of explosion with subsequent fire.
(25) During welding, the pressure bottle shall be in the sight of the welder or other persons involved in the welding.
(26) In the case of welding, propane-butane collection in the gaseous phase is only possible from the cylinder when the bottle is upright, with a cap up. To remove propane-butane in the gaseous or liquid phase from the cylinder in a non-vertical position, only if the manufacturer or importer so permits in the documentation.
(27) Pressure cylinders after transport to the workplace by closed vehicles shall be unloaded before the start of welding. In mobile workshops or mobile laboratories, pressure cylinders may remain under conditions that:
(a) there are no more than two gas cylinders in the vehicle and two cartridge cylinders;
(b) are located at the entrance to the vehicle storage compartment;
(c) are individually fitted with a device which can be easily released;
(d) no work shall be carried out in the vehicle compartment when the gas is collected;
(e) in the case of the floor in the space of the bottles, an airtight opening of at least 0,01 m2 is in or just below the roof of the vehicle;
(f) substances or materials which tend to self-ignite are not stored in the vehicle cabinet;
(g) no flammable substances or materials are stored in the vehicle cabinet together with the ignition source;
(h) the vehicle shall be equipped with at least one portable fire extinguisher with a powder mass of at least 5 kg, placed on the outside.
Electrical welding
(1) The connections of electrical conductors are placed on a non-flammable insulating substrate.
(2) Replacing electric conductors and welding clamps other than prescribed or approved conductors and clamps (e.g. various metal objects, parts of structures, chains, ropes) is inadmissible.
(3) In the case of electric arc welding in an explosion-hazard area followed by fire, electrical welding sources shall be located outside such an environment unless otherwise permitted by the manufacturer or importer.
(4) In the case of electric arc welding, the electrode holder shall be placed so that the electric arc and the hot metal spray cannot be accidentally formed.
(5) The electrodes shall be placed in a designated safe place (e.g. a non-flammable sand container).
(6) The welded article shall be such as to ensure that, when welding, the electrical current does not pass through other than specified routes and through non-specified objects. These roads and objects should be identified in such a way as to avoid the possibility of fire.
(7) After welding, the welding equipment must be disconnected from the power source.
Use of petrol soldering lamps
(1) Only undamaged petrol soldering lamp (hereinafter "soldering lamp ') may be used. Before putting the soldering lamp into service, its technical condition, in particular nozzle, screw seal and fuel tank tightness shall be checked.
(2) For preheating the soldering lamp, the procedures and petrol prescribed by the manufacturer or importer shall be used. Preheating is not allowed otherwise.
(3) During preheating and during operation, the soldering lamp shall be placed in a fixed and safe place. The torch of the soldering lamp heads into a free, safe space, outside the space with movement of persons. During preheating and operation, the soldering lamp shall not be left unattended. There shall be at least 0,5 m of open space between the mouth of the burner and the nearest fixed barrier to avoid reflection of the flame of the lamp or of the flame and overheating of the lamp, unless otherwise specified by the manufacturer.
(4) If a petrol leak is detected during or during the operation of the soldering lamp, the petrol supply shall be closed immediately.
(5) When using a soldering lamp to defrost pipes and other bodies, their possible insulation shall be removed in advance and the thermal insulation protection of the building components shall be ensured against the flame.
(6) When pressurising a soldering lamp, this lamp shall be placed on a fixed plate, a burner in the direction of the wind and at a distance from the fixed obstacles so that the flame cannot be reflected upon its sudden discharge.
(7) Before filling with gasoline, the soldering lamp shall be closed and cooled. Its re-ignition shall be carried out after reliable evaporation and ventilation of the vapour and, where appropriate, the spent fuel. Fuel shall not be refilled to the burning lamp with the ignited burner.
(8) After the work has been completed, the petrol supply must be closed, the soldering lamp should be allowed to cool down and stored in a specified place.
Use of electric solders
(1) The insulation of the power supply wire shall be checked before starting working with the electric solder (hereinafter "solder"). Only undamaged solders may be used.
(2) When working, the solder shall be placed on a heat insulation mat so that the method of postponement excludes its spontaneous slip or tear. The uncooled solder and solder in operation cannot be left unattended.
(3) After the work is completed, the solder must be disconnected from the power source and stored in a designated safe place.
Aluminium thermal welding
(1) Aluminium thermal welding is carried out with completely dry forms on dry material. The space below and in the vicinity of the mould shall be such as to be dry and protected against moisture when welding and opening.
(2) When transporting or transferring the batch of the mixture to the workplace, matches and cutters are transferred separately in closed packages.
(3) Specific instructions containing fire safety conditions should be laid down in writing for the fire-safe use of aluminothermal welding.
ARRANGEMENTS OF NON-MOVABLE MATERIALS
(1) When establishing fire safety measures for the welding of non-metallic materials, it shall be treated in a similar manner to the welding of metallic materials, based on the characteristics of a particular welded material and the technology concerned in order to prevent:
(a) the possibility of creating and spreading a fire or explosion followed by the action of particles of non-metallic materials which drip and burn;
(b) ignition of welded material or other flammable substances (e.g. by determining the mode and length of heating, determining the position of the flame).
(2) When welding, including the winding of insulating materials (e.g. polyethylene in combination with bitumen), the burner is ignited in the direction of wind into an open space in which flammable materials, pairs of flammable liquids or flammable gas are not present.
(3) The lit burner in energy-saving mode shall be placed in an open space without flammable materials in a stabilised position, with the nozzle facing into the open space. It shall be prevented from slipping, falling, flooding, hose weight removal or accidental opening of the gas supply, extinguishing or flame removal due to weather conditions.
(4) At the end of the hand-held burner work, the burner shall be allowed to cool down before storing the burner assembly, or placed in a separate holder located from the cylinder valve in a fire-safe distance specified by the manufacturer or importer.
(5) At the end of the work, the pressure bottle, hose and burner shall be removed from the workplace and stored at a pre-specified location.
INTRODUCTION OF LIVES
(1) The bitumen can only be heated in melting containers as specified by the manufacturer or importer.
(2) The heated element shall not be exposed to direct flame or other ignition source.
(3) The operator of the smelting vessel may only deviate from the place where the bitumen is heated to a distance so that it does not lose sight of this place and can intervene quickly and effectively if necessary.
(4) The melting vessel may be filled with a nutrient up to a maximum of three quarters of the contents, unless otherwise specified by the manufacturer or importer of the equipment.
(5) To put the contents of the melting vessel into a liquid state, the contents should be heated slowly. When heating, the operator shall ensure that the heated content does not overflow.
(6) Pressure cylinders used as part of a bitumen heating device are stored at a safe distance from their own heat source and melting vessels with heated bitumen. The safe distance from open fire shall be at least 4 m. A shorter distance is possible if the manufacturer or importer so provides.
(7) It shall not be permitted to store flammable substances within a distance of 4 m unless otherwise specified by the manufacturer or importer. Flammable substances shall be stored in such a way as to avoid their movement towards a possible ignition source.
(8) The installation of a melting vessel on a flammable substrate shall not be permitted unless otherwise specified by the manufacturer or importer.
(9) If solid fuels are used as a heat source, the fire must be safely extinguished before leaving the workplace and the ash stored in such a way that fire or spread of fire occurs (e.g. in non-flammable containers). It is not permitted to store flammable material in the surroundings and under containers, and the ash is protected against spontaneous blowing.
(10) At least two portable fire extinguishers shall be placed in the vicinity of the melting vessel, powder with a mass of one extinguisher of at least 5 kg, or other means of extinguishing the fire.
TRANSITIONAL AND FINAL PROVISIONS
(1) Specific provisions governing certain conditions for the fire safety of welding are not affected by this Decree. 7)
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Regulation Information
| Citation | Decree of the Ministry of the Interior No. 87 / 2000 Coll., which lays down conditions of fire safety during welding and heating of nutrients in melting containers |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 12.04.2000 |
|---|---|
| Effective from | 01.07.2000 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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