Decree No. 91 / 1993 Coll.
Decree of the Czech Labour Safety Authority to ensure safety of work in low pressure boiler rooms
Valid
Effective from 01.04.1993
91
DECLARATION
Czech Labour Safety Authority
of 12 February 1993
to ensure safety of work in low pressure boilers
According to § 5 (d) of Act No. 174 / 1968 Coll., on State Professional Safety Supervision, as amended by Act No. 159 / 1992 Coll. (full version No. 396 / 1992 Coll.), in agreement with the Ministry of Transport and the Ministry of Industry and Trade:
Scope
The decree covers organisations and natural persons engaged in business activity (1) and their personnel in the design, establishment, location and operation of low pressure boilers (hereinafter referred to as "boiler rooms'), with a rated heat output of at least one boiler of 50 kW or more and boilers with a total rated heat output of more than 100 kW.
Basic concepts
For the purposes of this decree:
(a) an eligible object or part of an object in which at least one boiler is located
1. steam with design overpressure up to 0,05 MPa,
2. liquid at the highest working temperature of the liquid, not exceeding the boiling point at an excess pressure of 0,05 MPa;
where appropriate, other equipment operationally related, not deciding whether boilers of the same type are in one boiler room;
(b) a boiler room with the sum of rated heat output of boilers above 3,5 MW;
(c) variable category II boiler room with the sum of rated heat output of boilers above 0,5 MW up to 3,5 MW;
(d) a variable category III boiler room with a rated heat output of at least one boiler of 50 kW and higher up to the sum of the rated heat output of 0,5 MW boilers and a boiler room with a total rated heat output of more than 100 kW boilers up to the sum of the rated heat output of 0,5 MW boilers;
(e) a separate object of a spatial structure which fulfils a defined purpose function;
(f) a steam boiler of an installation in which steam of not more than 0,05 MPa is produced by combustion of solid, liquid or gaseous fuels, or by the use of electricity, where appropriate;
(g) by a liquid boiler, a device in which the working liquid is heated to a maximum boiling temperature at an excess pressure of 0,05 MPa by combustion of solid, liquid or gaseous fuels or by the use of electrical energy, where appropriate;
(h) a hot water boiler, a liquid boiler in which the working liquid is water;
(i) boiler equipment for the production of steam or hot water, consisting of a boiler or several boilers and equipment necessary for the operation of the boiler or associated operation;
(j) the heated (heat-exchange) surface area of the walls of the parts of the boiler passing on heat to the working substance;
(k) by the nominal heat output of the boiler, the amount of heat per unit of time that the boiler must permanently transmit to the heat carrier under specified steady state conditions, using the fuel prescribed by the manufacturer;
(l) by drawing the boiler, the difference between the static pressure at the point of entry of the combustion air into the boiler and the static pressure at the point of discharge of the flue gas from the boiler;
(m) the design overpressure of the boiler is the maximum permissible value of the overpressure in the boiler which is the basis for the strength calculation of the boiler;
(n) the reconstruction of the boiler by the intervention into the whole produced boiler in which the parameters of the boiler are changed against the original condition;
(o) by occasional operation of the boiler, periodic inspection of the boiler by the heater within the time limits laid down in the boiler room's operating rules;
(p) permanent operation of the boiler by the operator, where the heater can only be distant from the boiler for a short period of time and under the conditions laid down in the boiler room operating order.
Project documentation of boiler room
(1) The boiler room design documentation shall include:
(a) the calculation of the air required for combustion and boiler thrust;
(b) design of technical solutions and calculation of efficient ventilation of boiler room and boiler room space;
c) design of technical solution and calculation of boiler safety equipment, 2)
(d) the method of operation.
(2) Project documents3) boiler room I and Category II, the processor is obliged to submit to the competent authority of the state expert supervisor (4) in the framework of the construction procedure.
Boiler documentation
(1) The supplier is obliged to deliver to each boiler
(a) instructions for its installation, operation, operation and maintenance;
(b) quality and completeness certificates.
(2) The documentation of the boiler with a rated heat output of 50 kW or more shall also include:
(a) drawings of the boiler assembly, its accessories and connection to the chimney;
(b) boiler base plans,
(c) a diagram of the piping and fittings, indicating the rated luminance and the rated pressures;
(d) a diagram of measuring points indicating the quantities for measuring the operating substances, a diagram of remote control and regulation and, where applicable, water circulation;
(e) lubrication scheme;
(f) quality indicators of supply and boiler water;
(g) the list of documents constituting the dossier.
(3) The gas-fired boiler with a rated heat output of 50 kW and above must also be supplied by the supplier of the gas heating plant with a revision book of the gas appliance and gas supply documentation.
(4) In addition to a liquid fuel boiler with a rated heat output of 50 kW and above, the supplier of oil boiler equipment shall also supply documentation and regulations for liquid fuel combustion plants (burner, preheater, oil farm, etc.).
Establishment of boilers
(1) Category I boilers shall be established in separate buildings, unless otherwise specified in paragraphs 3 and 4.
(2) Category II and III boiler rooms may also be set up in special rooms, in cellars, in basements, on the last floor or on roofs of buildings.
(3) Specific regulations apply to the installation of boilers with gas boilers. 5)
(4) In technically justified cases, a derogation from the provisions of paragraph 1 may be granted under conditions approved by the Authority.
Ventilation
(1) The boiler room and boiler room must be effectively ventilated. Sufficient air supply required for combustion and ventilation by the boiler floor opening shall be provided in the spaces where boilers are located.
(2) The air flow from the boilers shall be provided by at least one opening at the boiler ceiling, or by the exhaust pipe to the outside, so as to ensure sufficient air flow and to avoid adversely affecting the function of burners and flue gas drains.
(3) The forced ventilation of boilers in which boilers with natural thrust are located must not be pressurised.
Emergency lighting
(1) Emergency lighting must be installed for boilers with a floor plan of more than 150 m2 with permanent operation
(a) the front walls of the boilers;
(b) pressure gauges, tachometers, watermarks, altimeters and funnels and pressure relief devices of a steam boiler;
(c) space for discharging;
(d) gas management area;
(e) the space of the installation;
(f) the space of the liquid fuel operating tank;
(g) places where the steam or hot water distributor is,
(h) the entire length of the escape routes from these boilers.
(2) The emergency lighting referred to in paragraph 1 (a) to (g) is not necessary for boilers which are automatically shut down when the electricity is out of service and for boilers without permanent operation.
(3) Operators must have a hand-operated lamp in the applicable state.
(4) For boiler work, lamps are used for safe voltage.
Tensile ratios of boilers
(1) The flue-gas boilers shall be adjusted to connect the thrust and flue-gas temperature devices.
(2) The manufacturer of the boilers and when reconstructing the boilers, the manufacturer of the design documentation shall determine the necessary burning thrust.
Protection against burns
All surfaces in boiler rooms which are warmer than 60 ° C shall, with the exception of sealing elements, be provided with non-combustible insulation unless they serve heating purposes. The controls shall be in a design which excludes the possibility of burning.
Operating rules
(1) Organisations and natural persons engaged in business activities which operate boilers (hereinafter referred to as "operator") are required to issue boiler room operating rules (hereinafter referred to as "operating rules"); for a boiler room with gas boilers, the operating rules shall be those laid down in a specific regulation. 6)
(2) The operating rules include instructions for the operation of the boiler plant. If some boilers cannot provide the supplier's instructions, the operator shall incorporate the requirements for heating, operation and unsetting the boilers into the operating schedule.
(3) The operating rules provide in particular for:
(a) the number of boilers which can be operated by one heater;
(b) the method of operation;
(c) the obligations of personnel in the operation of the boiler room;
(d) the time limits and method of checking the security equipment;
(e) the time limits and method for detecting the presence of carbon monoxide in the boiler room and in the premises related to their operation;
(f) the manner, procedure, scope and dates of cleaning of boilers;
(g) persons authorised to enter the boiler room;
(h) the extent and time limits of entries in the operations log.
(4) The operating rules shall be permanently available in the boiler room.
Discharge of boilers
Boilers shall be immediately disengaged.
(a) the loss of water in the steam boiler watermarks;
(b) when cracks and larger leaks are formed, namely:
1. for steam boilers, if even with increased power supply it is not possible to maintain the lowest permissible water state in the boilers,
2. in the case of liquid boilers, at a sudden drop in liquid pressure,
3. if the safety of persons or equipment is compromised,
4. if the safety device fails, 2)
(c) in the case of deformation of heating surfaces of boilers which could cause rupture of boilers and thereby endanger the safety of persons;
(d) in the event of an explosion in the space heater and in the flue-gases which have caused damage to the linings, plating or self-pressure unit;
(e) where their reliable operation cannot be ensured (e.g. poor visibility, fire).
Operators' obligations
The operator shall:
(a) ensure the operation of the boiler in accordance with the operating rules;
(b) carry out preventive and operational maintenance of boilers and check the operation of heaters;
(c) ensure that escape routes are permanently free and usable;
(d) to ensure that works not related to their operation and maintenance are not carried out in boiler rooms and that unauthorised persons are not kept there;
(e) ensure the operation of boilers by qualified personnel ("heaters");
(f) ensure practical training, testing and verification of the knowledge of heaters;
(g) ensure personal protective equipment, ensure that it is properly maintained and exchanged within the time limits laid down, familiarise heaters with the use of such equipment and with their use to be required and continuously monitored;
(h) to arrange specified medical examinations of heaters;
(i) mark the door to the boiler rooms with a safety table marked "HOOK - UNAUTHORISED ENTERTAINMENT" or other safety signs, if applicable, 7)
(j) to eliminate defects and deficiencies detected during inspection and revision of boiler rooms;
(k) determine the presence of carbon monoxide within the time limits and in the manner laid down in the operating rules;
(l) keep the operations log and records of the boiler room inspections for at least three years.
Operating log
(1) An operating log must be kept in each boiler room.
(2) Data shall be entered in the operations log to the extent and time limits laid down in the operating rules.
Toaster tests
(1) Candidates may be allowed to test heaters
(a) over 18 years of age,
b) physically and mentally competent to perform the work of the heater, 8)
(c) who have completed at least weekly practical training.
(2) The examination shall be carried out by the candidate before the examination committee. The examination committee shall consist of a chairperson and at least two members, one of which shall be a boiler revision technique. 9)
(3) If the applicant also consists of a test for the operation of the boiler heating gas equipment, the test committee shall also be a member of the revision techniques of gas-fired gas equipment with a rated heat output of at least 50 kW. 10)
(4) The test shall be recorded. In the case of a positive test result, a certificate of competence, a model of which is set out in the Annex, which is part of this decree, shall be issued to the tenderer.
(5) The certificate of competence of the heater shall be valid for five years from the date of issue.
(6) There is no need to operate boilers with a rated heat output of less than 50 kW. The heaters of these boilers must be over 18 years of age, physically and mentally competent to perform the work of the heater, 8) trained and trained in their operation.
Obligations of heaters
The heaters are required
(a) keep the operator's boiler facilities in safe condition;
(b) comply with the operating rules and operating instructions of the boiler facilities;
(c) immediately notify the operator of any malfunction, defect or unusual phenomenon during boiler operation and, if there is a danger of delay, immediately put the boiler out of service;
(d) maintain order and cleanliness in the boiler rooms and ensure that unauthorised persons are not kept there;
(e) in the case of multi-shift operations after the end of shift, transfer the boiler plant to its successor;
(f) report immediately to the operator the circumstances which make it substantially difficult to operate boilers (e.g. sudden nausea);
(g) undergo medical examinations provided for in specific regulations, 8)
(h) enter in the operating log the data referred to in Paragraph 13 (2).
Technical inspections of boilers
(1) The operator must arrange for expert inspections of boilers (hereinafter referred to as "inspections")
(a) before the boilers are put into service;
(b) after each general repair and reconstruction of boilers,
(c) when the fuel type is changed;
(d) after one year of operation of boilers,
(e) for seasonal operations before the start of each season.
(2) The inspections may only be carried out by a person who controls the regulations for the operation, operation and maintenance of the boiler plant and boiler rooms and related regulations, such as heat engineering, boiler revision techniques, energy. They shall make a record of the outcome of the inspections.
(3) The inspection shall examine in particular the state of the boiler room, the external and internal state of the boilers, the state of the safety equipment, burners, pumps, tanks, water treatment equipment, the coal and deburring equipment, the smoke channels and chimneys.
Transitional provisions
(1) New and reconstructed boiler rooms may be put into service only on condition that no defects preventing entry into service have been detected during the professional examination.
(2) The certificates of competence of the heater issued before the entry into force of this Order expire on 31 December 1995.
Repeal
The Order of the Czech Labour Safety Authority No. 24 / 1984 Coll., is hereby repealed to ensure the safety of work in low pressure boiler rooms.
Efficacy
This decree shall take effect on 1 April 1993.
RNDr. Pokorný v. r.
entrusted with the management of the Czech Labour Safety Authority
Annex
Certificate of competence of the heater to operate low pressure boilers
1) § 3 of Act No. 174 / 1968 Coll., on State Professional Safety Supervision, as amended by Act No. 159 / 1992 Coll. (Complete version No. 396 / 1992 Coll.).
2) ČSN 06 0830 Central heating and water heating equipment.
3) Decree of the Federal Ministry of Technical and Investment Development No. 85 / 1976 Coll., on a more detailed modification of the zoning and construction rules, as amended by Decree No. 155 / 1980 Coll. and Decree No. 378 / 1992 Coll.
4) § 4 of Act No. 174 / 1968 Coll., as amended by Act No. 159 / 1992 Coll.
5) ČSN 07 0703 Gas boilers.
6) ČSN 38 6405 Gas equipment. Operating principles.
7) ČSN 01 8010 Safety colours and marks. ČSN 01 8012 Safety tables. ČSN 01 8013 Fire tables.
8) Directive of the Ministry of Health of the Czech Socialist Republic No 49 / 1967 on the assessment of medical fitness for work (registered in the amount of 2 / 1968 Coll.), as amended by the binding measure of the Ministry of Health of the Czech Socialist Republic No 17 / 1970 (registered in the amount of 20 / 1970 Coll.).
9) Decree of the Czech Office of Labour Safety and the Czech Mining Office No. 18 / 1979 Coll., which defines dedicated pressure equipment and lays down certain conditions for ensuring their safety, as amended by Decree No. 97 / 1982 Coll. and Decree No. 551 / 1990 Coll.
10) Decree of the Czech Labour Safety Authority and the Czech Mining Authority No. 21 / 1979 Coll., which determines reserved gas installations and lays down certain conditions for ensuring their safety, as amended by Decree No. 554 / 1990 Coll.
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Regulation Information
| Citation | Decree of the Czech Labour Safety Authority No. 91 / 1993 Coll., to ensure safety of work in low pressure boiler rooms |
|---|---|
| Regulation Type | - |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 05.03.1993 |
|---|---|
| Effective from | 01.04.1993 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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