Decree of the Federal Ministry of Transport No. 10 / 1991 Coll.
Decree of the Federal Ministry of Transport on the conditions of operation of road motor vehicles fuelled by compressed gas
Valid
Effective from 01.02.1991
10
DECLARATION
Federal Ministry of Transport
of 21 December 1990
on the operating conditions of road motor vehicles fuelled with compressed gas
The Federal Ministry of Transport shall, in agreement with the participating central authorities pursuant to Article 16 (1) (b) of Decree No. 54 / 1953 Coll., on road traffic, as amended by the statutory measure of the Bureau of the National Assembly No 13 / 1956 Coll.:
Scope
This Decree lays down the conditions for the operation of road motor vehicles where the fuel is compressed natural gas or biogas with a methane content exceeding 85% by volume, or other hydrocarbon mixtures with critical temperatures below 263 K (-10 ° C) (hereinafter referred to as "compressed gas vehicles') and conditions for the execution, operation and maintenance of their gas equipment.
CONDITIONS OF OPERATING VEHICLES MOVED BY GAS
Compressed gas vehicles
(1) Vehicles fuelled by compressed gas shall comply with the conditions laid down for the operation of vehicles on the road by special regulations (1) and the conditions for the execution of the gas equipment and its installation in the vehicle pursuant to Part Two of this Regulation. The vehicle shall also be:
(a) equipped with an operational fire extinguisher of an approved type, (2) safety instructions and instructions for the procedure in the event of an accident;
(b) provided with an easily accessible battery disconnect to allow all electrical circuits to be interrupted without the use of tools;
(c) clearly marked according to special regulations, (3) in the cab of the vehicle so that the marking can be seen from the driver's place, on the outer sides of the bodywork and on the rear of the vehicle; the marking shall be so placed as not to restrict the vision from the driver's position,
(d) regularly subjected to a technical inspection in accordance with specific regulations; (4) the first technical examination shall be carried out no later than one year after the vehicle has been put into service, or from the approval of the technical capacity of the vehicle to the change in engine propulsion, each subsequent inspection being carried out no later than one year after the previous one.
(2) The emissions of exhaust pollutants in vehicles fuelled with compressed gas must not exceed those specified by specific provisions. 5) In the case of vehicles with a converted engine drive, the values laid down in these Regulations shall apply to the engine before its conversion.
(3) In the case of vehicles with a classic type of propulsion, a change of propulsion by compressed gas may be made only with the agreement of the manufacturer or expert or of the administration designated in the procedure for the approval of the technical capacity of the vehicle when changing a substantial part of it. 6) The installation shall follow the procedure set out in the technical documentation of the gas installation. The vehicle modification company shall provide a technical description of the gas equipment, operating and maintenance instructions, safety instructions and evidence of test results of the gas equipment and pressure vessels to the vehicle.
(4) The provisions concerning the approval of the technical capability of vehicles fuelled with compressed gas shall apply mutatis mutandis to the approval of motor vehicles for use on the road. 7)
Operation of compressed gas vehicles
(1) In the operation and operation of vehicles driven by compressed gas, the following conditions shall be complied with:
(a) in the event of leakage and failure of the gas equipment, the closing valves of pressure vessels must be closed immediately; the closing valves shall be closed even after the working shift of the vehicle has been completed;
(b) in the cab of the vehicle, when filling pressure vessels, treatment and maintenance of the vehicle, smoking and handling of open fire shall be prohibited;
(c) the content of gas containers shall be allowed only to be released into the open space where no ignition of the gas emitted is likely or to be intended for that purpose;
(d) it is prohibited to enter enclosed storage, garage and similar premises where vehicles driven by compressed gas are not specifically permitted to enter;
(e) before entering a repair shop or a common garage, the responsible official of this building shall be informed that the vehicle is fuelled with compressed gas;
(f) pressure vessels on the vehicle shall not be exposed to external heat sources;
(g) in the event that, during the journey (operation) of the vehicle, the defect referred to in points (a) to (e) of paragraph 12 (2) occurs, the vehicle shall be immediately unloaded and safety measures taken.
(2) The gas-driven vehicle operator shall ensure that drivers and other persons serving vehicles are familiar with the conditions set out in paragraph 1, with the safety instructions and with the instructions for the procedure in the event of an accident.
GAS EQUIPMENT IMPLEMENTATION
Gas pressure vessels and their equipment
(1) Only pressure vessels (hereinafter referred to as "containers') which comply with specific regulations may be used as gas tanks. 8)
(2) The containers may be connected to the batteries, each container being equipped with a separate flow valve (i.e. "excess flow valve ') and a closing valve.
(3) The container or battery of containers shall be firmly connected to the structure of the vehicle in such a way that, when struck with a deceleration of 20 g in the longitudinal direction and 8 g in the vertical or transverse direction, the strength of the attachment of the vessels and the fittings and pipes attached are not disturbed. The strength of the connection can be demonstrated by calculation.
(4) The shut-off valves, fittings and connecting gas lines between individual containers must be protected against damage. The containers, their fittings, connecting gas lines and connections shall be so located that they do not protrude through the vehicle's contours and are protected from impact, radiant heat and sunlight.
(5) The connection for filling the containers shall be provided with a closing valve and a closing stopper. The stoppers shall be secured against loss, e.g. by a chain firmly connected to the structure. The filling shall be controllable by a manometer located on the vehicle, which may also serve as an indicator of the amount of gas in the containers.
(6) The additional welding of supporting or auxiliary structures onto vessels is not allowed.
Pressure regulators
(1) The pressure regulator shall be shown to withstand the highest possible input pressure.
(2) The material used for the production of reduction valves must be resistant to the action of the gas used for the propulsion of the vehicle, must withstand safely the operating and test pressures and operating conditions on the vehicle.
(3) The pressure relief valves and regulators must be located at a distance from the parts of the vehicle which emit heat (in particular the exhaust pipe) or protected in such a way that the maximum permitted temperatures specified by their manufacturers for reducing valves and regulators are not exceeded.
(4) Regulators must be so designed as to prevent gas flow to the engine if the engine of the vehicle is at rest. The controls and controls shall be adjusted by the manufacturer to avoid undesirable handling, except for the idling elements.
Gas manifolds and pipes
(1) Gas manifolds and pipes including all connections must be resistant to the action of the gas used. It shall be mechanically compliant with the vehicle's operating conditions and maximum operating and test pressure.
(2) For low pressure connections (up to 100 kPa), only standard hoses intended for compressed gas specified in § 1 or other standard hadic9 may be used with the agreement of their manufacturer. The hose connections shall be perfectly tight, and each connection shall be fitted with at least two buckles when belt buckles are used for the connections.
(3) Steel tubes must be whole or joined by welding. Thread connections with cutting rings 10) are only permitted for fittings and removable parts of the distribution.
(4) The pipes and hoses must be so located and secured that they are not damaged by vibration or friction of the components by themselves and must be protected against corrosion and radiant heat. The spaces through which the gas line is guided shall be gas-tight separated from the driver's cab, passenger compartment or enclosed loading compartment and shall be safely ventilated into the open space. The radius of curvature of bent steel tubes shall be greater than five times their outer diameter. The grips and ducts of the gas pipe shall be such that the pipes cannot be mechanically damaged by contact with the rigid parts of the vehicle. The external surface of the metal pipe shall be yellow.
(5) Direct welding of pipes and pipes to the structure of containers or vehicle is not permitted. All connections and pipes shall be accessible and controllable. The gas pipes and hoses shall be located at a distance from the heat heater so as not to disrupt the function of the gas equipment. Where necessary, effective shielding against thermal radiations and safe off-board gas extraction shall be performed.
(6) Pipes shall allow for easy emptying of any container or battery.
Mixing equipment and its control elements
(1) The mixing device must be securely fixed and must not be placed before air cleaners.
(2) A vehicle fuelled with compressed gas, which is also modified for alternative propulsion by liquid fuel (automotive petrol or diesel), must be so designed that it cannot be operated simultaneously on gaseous and liquid fuel, with the exception of the ignition charge for diesel engines.
Armatures
(1) The spaces in which high-pressure fittings, high-pressure gas manifolds and reduction devices are located shall be gas-tight separated from the driver's cab, passenger compartment or the vehicle's enclosed loading compartment. The ventilation line shall be opened at a location where parts of the vehicle are not present that could cause the leaking gas to ignite and entry into the cabin and passenger compartment. All fittings shall be easily accessible.
(2) The combustion or ignition start-up equipment in the intake line shall be automatically deactivated when operating on gas.
Approval of the technical capability of gas equipment
(1) The technical capacity of gas equipment produced in bulk or imported must be approved in accordance with specific regulations. 11) The production of a single gas plant is prohibited.
(2) The technical documentation of the gas equipment, the operating and maintenance instructions, safety instructions, maximum pressure data, evidence of suitability for the gas and evidence that the elements of the gas equipment subject to approval under the state testing regulations have been approved by the relevant approved test laboratory shall be provided in the documentation for the approval of the technical suitability of the gas equipment.
Physical checks on gas equipment
(1) After its installation on the vehicle and after repair or reconstruction, the gas equipment must be subjected to a technical inspection. In the case of in-service vehicles, regular technical checks on the gas equipment shall be provided, at the latest within one year of the previous check and thereafter if the vehicle has been out of service for more than three months. Technical checks shall be carried out according to the technological procedure established by the gas equipment manufacturer; a leak and strength test is always part of the technical inspection.
(2) The manufacturer of the gas equipment or the company which carried out its installation in the vehicle shall be authorised to carry out the technical checks. The gas-fuelled vehicle operator shall keep records of technical checks. Specific regulations apply to periodic tests of gas pressure vessels. 12)
Maintenance of gas equipment
The maintenance of the gas equipment shall be carried out according to the manufacturer's instructions.
Technical incompetence of gas equipment
(1) In the event of a failure of the gas equipment, the drive shall be immediately deactivated by compressed gas.
(2) In particular, the following shall be regarded as defects referred to in paragraph 1:
(a) leakage of gas from any part of the gas installation and failure of the ventilation system;
(b) permanent release of gas by means of safety valves;
(c) a crack or damage which could cause gas leakage;
(d) failure of reducing equipment, pressure regulator, mixer, pressure gauge, closing valves and fixing of containers;
(e) attend the gas flow to the mixer at the engine switched off;
(f) exceeding the permissible limits of harmful exhalation in exhaust gases.
(3) The propulsion by compressed gas shall also be disabled if the periodic pressure vessels test or technical inspection of the gas equipment is not carried out within the prescribed time limit.
FINAL PROVISIONS
Efficacy
This Decree shall take effect on 1 February 1991.
Minister:
Ing.
1) Decree of the Federal Ministry of Transport No. 41 / 1984 Coll., on the conditions of use of vehicles on the road.
2) § 78 (2) of Decree No. 41 / 1984 Coll.
3) ČSN 018014 Labelling tables for gas pressure vessels.
4) Paragraph 83 of the Ordinance of the Ministry of the Interior No 145 / 1956 Ú. l. (Ú. v.) on road traffic.
5) § 39 of Decree No. 41 / 1984 Coll.
6) § 77 of Decree No. 145 / 1956 of the Ministry of Interior Ú. l. (Ú. v.).
7) § 3 of Decree of the Federal Ministry of Transport No. 41 / 1984 Coll. § 75 of Decree of the Ministry of Interior No. 145 / 1956 Ú. l. (Ú. v.). § 77 of the Ordinance of the Ministry of Interior No 145 / 1956 Ú. l. (Ú. v.).
8) Decree of the Czech Office of Labour Security and the Czech Mining Office No. 18 / 1979 Coll., which designates dedicated pressure equipment and lays down certain conditions to ensure their safety, as amended by Decree No. 97 / 1982 Coll. Decree of the Slovak Labour Safety Authority and the Slovak Mining Authority No. 23 / 1979 Coll., which determines reserved pressure equipment and lays down certain conditions to ensure their safety, as amended by Decree No. 84 / 1982 Coll. ČSN 07 8304 - Metal pressure vessels for gas transport. Operating rules. ČSN 07 8305 - Metal pressure vessels for gas transport. Technical rules.
9) ČSN 63 5384 Hose. Gas and oil hoses. Work pressure static 1,0 MPa. ČSN 63 5387 Hose. Oil hose. Working pressure static 0,3 MPa. ČSN 63 5388 Hose. Oil hose. Working pressure static 0,5 MPa to 2,0 MPa.
10) ČSN 23 7656 Strojárske skrutkovanie. Different crosses. Construccia and basic dimensions (containing ST SEV 2635-80). ČSN 13 7658 Strojárske skrutkovanie. Tessering pins. Construccia and basic dimensions (contains ST SEV 2636-80).
11) § 4 of Decree No. 41 / 1984 Coll.
12) ČSN 07 8305 Metal pressure vessels for gas transport. Technical rules.
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Regulation Information
| Citation | Decree of the Federal Ministry of Transport No. 10 / 1991 Coll., on the conditions of operation of road motor vehicles powered by compressed gas |
|---|---|
| Regulation Type | - |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 01.02.1991 |
|---|---|
| Effective from | 01.02.1991 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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