Cabinet of Ministers Regulations No. 164 of 2002 in Riga on April 23 (Mon. Nr. 17, 6. §) main pipes and main technical supervision order Issued in accordance with the law "on technical supervision of dangerous equipment" 3. the second paragraph of article i. General questions 1. establishes requirements to be complied with to avoid threat to human life, health, property and the environment, organizing and doing work with the rules referred to in paragraph 2, the pipeline for gas, liquid, steam (pure phase) or mixtures of these substances (substances) and transportation from the transmission or on structures and mechanisms as well as a main technical supervision procedures.
2. the rules apply to metal or glass-fibre epoxy materials for pipelines, which by technical parameters (such as diameter, pressure, temperature, substance transported) according to laws and pressure equipment directive and their assemblies are to be classified as a category III pipelines (hereinafter referred to as the trunk pipelines). Provisions do not apply to: 2.1 the pipelines located one company (the company) in the territory and intended for the transport of substances between plant or complex, located in the territory of the company (the company);
2.2. an underground pipeline for the transport of substances that are consistent with the laws and pressure equipment directive and their complexes to be classified as Group II of the pressurized fluid;
2.3. the pipelines that transport natural gas and that the maximum permissible operating pressure is less than 16 bars.
3. The Ministry of welfare, in cooperation with the relevant technical standards Committee recommends the non-profit State limited liability company "Latvian standards" implementation of those rules required, adaptējamo and the applicable standards.
4. the non-profit organization public limited liability company "Latvian standards" submit for publication in the newspaper "journal" the Latvian National Standard, a list of applicable requirements of these regulations (hereinafter referred to as the applicable standards).
5. The Ministry of welfare in the Cabinet of Ministers proposals submitted for inspection by the competent authorities of the authorization line evaluation according to the requirements of this regulation.
6. the competent inspection bodies empowered to evaluate trunk pipelines, if it complies with the rules laid down in chapter VI.
 
 
II. General requirements for the use of line 7. Line the appropriate and safe use, maintenance and supervision in accordance with the provisions of other laws and documentation requirements of use provides a line possessor.
8. Use only the national labour inspectorate is established within the trunk pipelines.
9. the pipeline for each line requires a technical passport official language. Trunk pipeline technical passport in accordance with the provisions laid down in the annex to the technical passport sample for the pipeline shall draw up and approve the accuracy of data trunk pipeline possessor.
10. Trunk pipeline possessor adds technical passport regulations issued in accordance with the procedure laid down in the trunk pipeline compliance statements, as well as the following documents in the language of the country (hereinafter referred to as use documentation): 10.1 use of the pipeline route and stop launching instructions;
10.2. trunk pipeline operating and maintenance instructions;
10.3. the plan of action in the event of emergency, the main pipeline for the Elimination of the defects and other accident prevention;
10.4. the increased danger job list, which requires the Executive to receive a special work assignment (permission).
11. Trunk pipeline holder banned the use of the pipeline commenced, if the pipeline does not have technical passport and usage documentation.
12. Placing or hiring line to another holder, shall also be forwarded to the technical passport and use the documentation.
13. before entering the main substances transported in the pipeline trunk pipeline possessor shall ensure that: 13.1 the pipeline route the motor Assembly and readiness for operation;
13.2. the functional and strength verification and approval;
13.3. security system required the preparation and readiness to work;
13.4. trunk communications systems of the pipeline ready for work;
13.5. trunk pipeline commissioning procedure laid down by the legislation;
13.6. the elaboration of the documentation required for the main use of the pipeline and use;
8.5. the provision laid down in paragraph 10.3. development plan.
14. Trunk pipeline possessor has the following responsibilities: to designate the professional 14.1., which is responsible for the trunk pipeline technical condition, safe use, maintenance and supervision (hereinafter responsible);
14.2. to designate personnel who operated transfer (transmission) of equipment (Service staff), as well as the rest of the staff. Service staff is trained and certified in the laws on dangerous equipment operating personnel training established by other personnel, trained in law in the order;
14.3. in the light of the use of the documentation, the work environment, external risk factors and characteristics of the substances being transported, as well as the upstream pipeline conditions of use, to ensure the development of the operating instructions, staff duties (hereinafter work instruction), work instructions and, if necessary, clarification and improvement, as well as to provide staff with the mentioned operating instructions;
14.4. to ensure the statutory assignment (permission) issue of increased hazard work;
14.5. to provide those rules and other regulations in the trunk pipeline and its technological equipment (such as leak detection, cathodic protection, earthing equipment) test. These checks shall be carried out by the competent Cabinet authorised inspection authority (hereinafter referred to as the inspection authority) this provision in accordance with the procedure laid down in chapter V;

14.6. to provide trunk pipeline technical passports, use of documentation and work instructions and reporting national labour inspectorate and other supervisory officials and representatives for the inspection bodies defined in legislation;
14.7. together with the main pipeline in the technical passport and documentation of use store trunk pipeline project and technical documentation relating to the construction of the pipeline and the commissioning and indicating the location of the pipeline and the technological scheme, equipment, and controls the positioning of slēgierīč;
14.8. to ensure the pipeline according to the marking requirements of the legislation on the security protection zones around oil and oil products pipelines, warehouses and repositories;
14.9. to report to the State Labour Inspectorate and other law the supervisory authorities set about crashes or accidents which have taken place in the connection with the main use of the pipelines, as well as to submit to the State fire and rescue service plans for action in emergency situations.
15. Responsible for develop and periodically update the working instructions. Working instructions specifying trunk pipeline use, the stop and normal use. Work instructions shall set: 15.1 staff duties and responsibilities;
15.2. the necessary security measures;
15.3. interaction with other pipeline systems and structures;
15.4. the references to the directives, regulations and instructions.
16. Responsible for develop and periodically update the plan of action in the event of emergency. These plans establish the trunk pipeline damage and accident clearance procedures, as well as the requirements of staff and equipment, which are used in the main pipeline damage prevention and localization.
17. Responsible shall ensure that: 17.1. not less frequently than once a year, check the plan for action in the event of emergency, simulating in a trunk pipeline and emergency situations;
17.2. the staff was the introduction of the relevant instructions and the plan of action in an emergency;
17.3. assignment (permission) issue employees increased danger.
18. Responsible for trunk pipeline during use, ensure the necessary exchange of information and cooperation with: 18.1. National Fire and rescue service, the national police and other relevant services;
18.2. the State Labour Inspectorate, the State environment inspectorate and other regulations laid down by the trunk pipeline and its use of the inspection service;
18.3. other pipeline possessor of the pipelines are connected to the main pipeline that passes through it, or the immediate vicinity;
18.4. landlords and tenants who under the pipeline crossing the line;
18.5. citizens who live or are employed by a major pipeline in the vicinity;
11.6. any third party, which may influence or affect the trunk pipeline use.
19. The responsible officer in the use of the pipeline and the line maintenance has the following responsibilities: provide documentation of use 19.1 of the trunk pipeline and its technical condition of the equipment;
19.2. ensure operating staff, as well as the qualifications of staff working in the protection work of the briefing, as well as emergency and repeating knowledge test on line safe operation of the pipeline;
19.3. to provide a trunk pipeline preparation set out in these rules for technical checks and participate in their implementation;
19.4. If significant (dangerous) defects or irregularities in the work of the instructions with line, to ensure the Elimination of the deficiencies found;
19.5. to stop the line of pipeline operation in the following cases: 19.5.1 the pipeline route is found to leak or other damage that endangers or may endanger human life, health, property or the environment; the route for the pipeline 19.5.2 deadlines have been set out in chapter V of these regulations.
20. the Main pipeline possessor or responsible without delay: 20.1. any substances transported leak which contaminates the environment, threatening the drinking water supply and groundwater,-regional environmental administration concerned;
20.2. for any major pipeline damage or improper operation, which endangers human life or health, the State Labour Inspectorate;
20.3. If increased fire risk, State fire and rescue service.
21. The line possessor or the pipeline responsible is responsible for the maintenance and monitoring of open defects, as well as, if this provision 20.1., referred to all possible measures are taken to eliminate the consequences of the leak and prevent its recurrence (for example, streaming instant collection of substances and their subsequent spread, trunk pipeline emergency checks according to this provision, paragraph 49).
22. The operating personnel has the following responsibilities: 22.1. to comply with safety, fire safety and environmental protection requirements for working with line according to the legislation requirements and job instructions, as well as the responsible professional orders and instructions;
22.2. to notify the responsible technician if the trunk pipeline condition is unsatisfactory and endanger or are likely to pose a threat to human life, health, property or the environment.
 
 
III. Security requirements an upstream pipeline use 23. Filling main by transported substance, controlled substance compliance with norms and to pressure not exceeding permissible norms.
24. in the Trunk pipelines, transporting substances containing liquid, ensure that the back pressure prevents hydraulic shock during pipeline filling.
25. substances Transported the filling time in accordance with the applicable requirements of the standards periodically checks the trunk in the pipeline there is not a leak.
26. the filling or releasing (empty) line, as well as the transport of substances in the meantime, the possessor shall ensure the protection of the environment, fire protection and technical supervision requirements under laws and regulations governing transactions with the substances in question.

27. the technical condition of the pipeline monitoring and the collection of information required under the trunk pipeline maintenance and supervision instructions to be able to evaluate the trunk pipeline safety, mechanical integrity and stability. Preparing instructions, take account of the following conditions: 27.1. trunk pipeline construction;
27.2. trunk pipeline construction;
27.3. the results of previous checks;
27.4. trunk pipeline condition may deteriorate;
27.5. adverse environmental impacts;
17.1. test interval.
28. A trunk pipeline operating instructions and work instructions related to the whole trunk pipeline maintenance and maintenance of fire-fighting equipment and other safety equipment on the access roads, buildings, fences and barriers, as well as on the pipeline, its components and the determination of the substances transported and informative warnings. Special focus on trunk pipeline protection and safety equipment.
29. the Main pipeline possessor within Visual assessed all the main pipeline route, in order to identify possible lesions, which may affect the safe and healthy use of the pipeline. Evaluation results documented and stored.
30. the main pipeline route in the Visual assessment, check the track marks, to ensure a clear track and assess whether: 30.1. trunk pipeline above ground parts for damage or leak;
30.2. no third party unauthorized transaction;
30.3. no change in the land use purpose;
30.4. There is increased risk;
5. are not made Earth digging or mining operations;
19.0. no landslides;
19.1. the line does not threaten the natural disasters, floods and inverted trees.
31. the Main pipeline for use during periodic control the following safe use: 31.1. trunk pipeline anticorrosion protection status, and other factors that affect the condition (for example, environmental impacts, vibration);
31.2. the main substances transported in pipeline leak detection system, which stores the results of the verification authority responsible;
31.3. surface upstream pipeline stages and their supports, to detect the State of corrosion, mechanical integrity and stability, as well as cracks in the concrete construction;
19.5. trunk pipeline valves and seals to determine their functional ability;
31.5. protection device status, in conformity with the relevant parameters, the Setup is correct and functional ability.
32. If during the inspection finds defects or damage, it will be recorded and monitored to be transported: 32.1. pressure of the substance in the main pipeline, and, if possible, reduce the pressure of the substance to be transported;
32.2. assess damage according to paragraph 33 of these rules;
32.3. in damage.
33. Damage assessed, finds the degree of hazard and, if necessary, take appropriate preventive measures (such as reducing pressure, repair). The evaluation includes: 33.1. test and measurement data, damage and the location of the nearest element (for example, welded connection);
33.2. the approved design and specifications of the products;
33.3. trunk pipeline materials in the physical and chemical properties;
33.4. the existing and anticipated damage assessment of the situation;
33.5. trunk pipeline operating loads and the resulting environmental impacts on damage analysis;
20.9. damage assessment of possible consequences.
 
 
IV. Main technical service, repair and reconstruction of route 34 in the pipeline the possessor is entitled to choose the pipeline maintenance, repair and reconstruction techniques that ensure secure, affordable and solid substances transported delivery (transmission).
35. the main Change in the basic elements of pipelines by welding the elements that limit values are used in the calculation of the integrity of the pipeline, or paste a epoxy glass fibre tubes (repair), as well as by changing the design or working of the pipeline parameters (reconstruction), trunk pipeline possessor followed in this section and, where possible, the relevant applicable standards.
36. Trunk pipeline connections welded izjaucamo not legislation established certified welders in accordance with standards applicable procedures.
37. Trunk pipelines pipes glass epoxy bonding specialists whose expertise in the relevant procedures are certified in accordance with legislative requirements on the transportation pipeline design, construction, and conformity assessment.
38. the Main pipeline metināto connections in accordance with the applicable standards verified by non-destructive methods of control regulations in accordance with the procedure laid down by the accredited laboratories.
39. the Main pipeline repair or reconstruction allowed to start only after the holder or contractor is issued the rule laid down in paragraph 14.4. written assignment (permission). If the work is carried out, the contractor, the contractor shall issue the holder works.
40. the main pipeline repair or reconstruction, take into account the following factors: 24.9. substances transported in peril;
40.2. the duration of the work performed;
40.3. pipeline materials possible reaction;
40.4. related ventilation, drainage and pipework to disconnect the equipment need.
41. In assessing the trunk pipeline and substances the combustion venting options, take account of the following risks: 25.5. toxic gases and other harmful effects;
41.2. the substance of the vapour-air mixture ignition or explosion of the possibility of accidental contact with power, static electricity, or other potential sources of ignition;
41.3. sound level limits;
25.7. hydrate formation;
25.8. arrangement of valves;
25.8. the fragility effect of metal pipes.
42. free (empty) line of the substances transported, using inert gas or water, and take into account the following risks: 42.1. choking effects of inert gases;
26.2. overpressure effect;
26.3. sludge that remains in the valve cavities;
26.3. the transported substances and contaminated water discharge;
26.4. buoyancy effect using gas-liquid discharge;
26.5. compression effect, which refers to the steam ignition of the substance;

26.5. the possibility of ignition of the substance under pressure.
43. The planning of trunk pipeline flushing, take into account the following risks: 43.1. flushing gas created in the suffocating effects;
43.2. flammable or toxic liquids into the environment;
43.3. the ignition, compatibility or corrosion conditions, when the pipeline will be filled in the back of the original substance.
44. the main pipeline repair or reconstruction with an open fire, or elevated temperatures, take into account the following risks: 44.1. the possible physical and chemical reactions, including those transported and sediment could catch fire;
44.2. pipe material type, parameters, the wall thickness at the place where the work carried out by the open fire or at elevated temperatures;
44.3. the pipeline and weld possible corrosion.
45. the Main pipeline repair and reconstruction carried out in accordance with the approved holder of the pipeline technology, which meets the requirements of the applicable standards. Technology: 45.1. requirements to the quality of the work accomplished and security;
45.2. the requirements for the assessment of the work executed: hydraulic, non-destructive control, cathodic protection additional measurements and other checks;
45.3. requirements for documentation of the work;
28.2. the requirements for the protection of the environment and the population.
46. All the data on the main pipeline repair or reconstruction, as well as on the checks carried out in connection with the repair or reconstruction, documented and added to the main pipeline in the technical passport.
 
 
(V). Line inspection line 47. periodic inspections, exceptional checks and the provision in paragraph 49 of the cases take the trunk pipeline inspection body chosen by the holder.
48. the Main pipeline in the periodic inspection carried out at the time of use of the pipelines at least every four years, on the basis of the possessor of the pipeline organized technical analysis, diagnostic and test results. Periodic inspection includes: 29.9. usage of the inspection of the pipeline (pipeline, component, equipment and their placement in compliance with Passport and diagram);
48.2. pipeline above ground parts of the external review;
48.3. the pipeline equipment and safety equipment for the functional check;
30.1. the hull and pipeline connection checks using non-destructive methods of control;
30.1. pipe, fittings and connections to the physical properties of test cases, if you do not know the brand of the material or is suspected material strength decrease corrosion parameter, the overload, and for similar reasons;
30.2. the pipeline and the element Earth tests;
30.3. the pumping engine electrical tests;
30.3. the pipeline leak;
30.4. pipe insulation coating;
48.10. pipeline cathode protection security check.
49. the Main pipeline emergency testing required in the following cases: 30.5. after line pipeline repair or reconstruction;
30.6. the State labour inspection or national inspection reasonable request, if you have news about this rule referred to in paragraph 20.1 of the substances transported leaks;
30.6. the accidents that may compromise the safe operation of the pipeline in the line.
50. Emergency inspection, depending on the amount of repair or reconstruction, as well as the scope of work for this rule 30.6 in the cases determined by the inspection body in accordance with the applicable standards in būvnormatīvo and requirements. Depending on the reason the emergency inspection inspection authority uses the test method which is less affected by substances transported delivery (transmission).
51. the Main pipeline, through the pipeline by means of technical inspections and tests comply with these rules and the applicable standards.
52. the Main pipeline inspection during the inspection body shall evaluate any defects that affect the strength of the design of the pipeline and the pipeline leak (such as corrosion, cracks, leaks, flange connection bolt, strut deflection), and: 52.1. recognises the pipeline for use if found cracks and leaks that pose a threat to human life, health, property or the environment;
52.2. assess the impact of the relevant defect structures in its ability to withstand the load, if found to be corrosion and other defects. If necessary, make the pipeline hydraulic or pneumatic test in accordance with these terms and the applicable standards.
53. After the main pipeline repair, if it is directly related to the integrity of the pipeline, as well as this rule 52.2. the cases in point upstream in the pipeline by means of organized renovated pipeline stage hydraulic test and inspection institutions call upon. Taking into account the conditions of use of the pipeline, the position and nature of the substance to be transported, the possessor has the right to replace the hydraulic test with air inspection, subject to the necessary security measures.
54. If third parties caused by the unlawful action of the trunk pipeline damage, the repair of the pipeline shall be carried out according to the rules laid down in paragraph 45 of the technology and do not apply this rule 49.1. subparagraph and paragraph 53 of such requirements.
55. before the trunk pipeline hydraulic or pneumatic test trunk pipeline in pipeline stages to be checked by means of a disconnect from the technological system of the substances transported. Hydraulic or pneumatic test shall be carried out for the period that is fully equipped with the facilities provided for the safe operation of the pipeline.
56. the Main pipeline hydraulic test carried out with water or other liquids that are not exposed to harmful material and not the pipeline, toxic or flammable oxidizing. Pneumatic testing hazardous substances in the vapour concentration in the pipeline must not exceed 50% of the lower explosion limit values of concentration if the check does not use inert gas.
57. If during the test the ambient temperature is below 5 ° c, use the substance, which the freezing point is lower than the environmental temperature.
58. the Main pipeline hydraulic and pneumatic test is carried out with the use of the pipeline to the method set out in the dossier, coordinated by the inspection body. If you use the pipeline documentation does not specify test methods, this shall be done in accordance with applicable standards.

59. the Main pipeline has passed the hydraulic test, if they have not found the leak and pressure reduction (take note of the change of temperature during the test). The trunk pipeline has passed the air test if its time checking pipelines along its whole length with leakage indicator, has been found to leak and pressure does not exceed 0.2% of the reduction in hours. Pressure reduction is calculated using the following formula: P = 100 (1-[PbT/PsTb]) x (k), where P – pressure decrease (%);
PB — pressure test (bar);
TS: temperature (° c) the beginning of the test;
PS: the operating pressure (bar);
TB: temperature (° c) at the end of the inspection;
k-correction factor (pipelines, with a nominal diameter of less than 250 mm, k = 1, the pipeline with a nominal diameter greater than 250 mm, k = 250/Dna (Dna-nominal diameter (mm)).
60. If the line is dehermetizēj, the pipeline deemed unfit for use. Technology-related pipeline further use allowed if damaged the pipeline line is delimited and does not affect the overall operation of the pipeline, confirmed by the inspection body after emergency inspection.
61. If the inspection body trunk pipeline inspection finds damage or signs that the strength of the pipeline or functional safety is reduced, the inspection body shall assess the ability to operate the pipeline, for which the relevant parameters (e.g. pressure, temperature) are below the norm.
62. After inspection the inspection authority to the opinion of the main entries in the technical passport of the pipeline and technical test report shall be drawn up in duplicate. One copy of the inspection protocol of the inspection body shall issue an upstream pipeline holder and a second kept for not less than 10 years after the date of the inspection.
63. If the inspection body of the investigation establishes that the trunk pipeline satisfies these regulations and applicable standards, the inspection body affixed by a major pipeline in the technical passport of the hazardous safety checks.
64. If the inspection body trunk pipeline inspection finds its non-compliance with these terms and the applicable standards, the trunk pipeline possessor is obliged that within the time limit agreed with the inspection body, to prevent non-compliance and inspection institutions call upon repetitive tests.
65. If the trunk pipeline after repeated inspections do not meet the requirements of this regulation or a threat to human life, health or property, the inspection body shall promptly give notice to the holder of the pipeline and communicated to the national labour inspectorate, State fire and rescue services, as well as the State environment inspectorate, if compromised environment, and during the day the said institutions sent a copy of the minutes of the inspection.
 
 
Vi. The minimum criteria for the inspection bodies of 66. inspections is independent of all parties involved and only provide third-party services. Its Director and the staff responsible for line inspection procedures to ensure that verification does not affect persons who are directly related to the inspection of commercial interests.
67. The inspection body, its Director and the staff responsible for the trunk pipeline inspection procedures, may not be the designer, manufacturer, supplier, installer or user, or their authorized representative.
68. The inspection bodies have enough adequate staff and technical equipment to be able to perform properly the technical and administrative tasks connected with inspection procedures.
69. the staff responsible for inspection procedures are: 69.1. appropriate professional and technical training;
EB 69.2. sufficient knowledge of inspection procedures and experience in carrying out checks;
69.3. experience in the preparation of reports and report and certificate in design;
69.4. knowledge of the technology used in the production line, as well as knowledge of the possible damages that may arise in the trunk pipeline during use;
69.5. in compliance with legislative requirements, certified competences.
70. the inspection bodies of the staff remuneration must not depend on the amount of the checks or tests and results.
71. The inspection body shall take out civil liability for those checks that it is authorized to take.
72. The inspection body itself shall take all the appropriate examinations and tests, or to one of the conformity assessment tests pass the subcontractor. In that case, the inspection body shall provide and guarantee that the subcontractor is competent in the relevant provision of the service, and shall assume full responsibility for the results of the checks.
73. The inspection body are bound to observe confidentiality, protect property and shall not disclose information which it has received, by inspection, except information that is officially required under that rule 65.
 
 
VII. concluding issues 74. Trunk pipelines, which the entry into force of the provisions is not technical passports which comply with the rules in paragraph 9, it must be drawn up not later than June 1, 2003, on or before the renewal of the pipeline to the national labour inspectorate.
75. If the main pipeline that the date of entry into force of the provisions are registered in the national labour inspection, the technical passport is not necessary to add this provision mentioned in paragraph 10 in the attestation of conformity.
76. the rules shall enter into force by 1 June 2002.
Prime Minister a. Smith Welfare Minister a. Požarnov Editorial Note: regulations shall enter into force by 1 June 2002.