regulations in operation and maintenance of power (regulation observance manual). Furthermore, it is required for each individual unit to contribute to the development of power system and stable power supply for national economy and social life through continuous efforts in research of advanced technologies for improvement of own power facilities in their operation and maintenance.

2.In order to improve the productivity and efficiency of facilities and to lower the operation cost (running cost), it is important to perform maintenance work of facilities effectively and to keep the facilities in sound conditions by continuous efforts for improving the method of maintenance work as well as improving the facilities by repair and replacement. Moreover, each individual unit has to strive for reduction of power consumption for the station service.

3.In order to pursue the possibility of application of the newest technology, it is important to introduce the knowledge of the latest technology and to increase technical level through information collection, education and training of employees and technical research activities.

The following stipulationsin Electricity Law must be referred to for implementing Article of7 Technical Regulation Vol.4:

Electricity Law Article 14 “Electricity savings in power generation”:

“Power generation units shall be responsible for selecting advanced generation technology with high efficiency, and implement optimal operation mode on power generation equipment in order

to save fuel and other energy resource for power generation, contributing to assurance of national energy security.”

Electricity Law Article 15 “Electricity savings in power transmission and distribution”:

“Power transmission lines and stations network must satisfy the advanced techno-economical standards and specification, it shall be operated in optimal mode with the aim at meeting requirement on stable, safe, uninterrupted electricity supply and minimizing power losses.”

Chapter 2 Acceptance of Equipment and Plants for putting in Operation

Article 8. Operating condition of power works

Framework for acceptance of power plants and network facilities in Vietnam is as follows:

1.Article 21 “Conditions for being granted electricity activity licenses” of Decree No.: 105/2005/ND-CP “Decree on detailed regulations and guidelines on implementation of the electricity Law” (August 17, 2005) stipulate as follows:

1.Organizations, individuals engaged in electricity generation must satisfy the following criteria:

a)Possessing technology, equipment, auxiliary, workshop and constructions as approved design for construction, installation then being checked and accepted in accordance with existing technical standards;

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2.Units engaged in electricity transmission and distribution must satisfy the following criteria:

a)Possessing technology, equipment, auxiliary, workshop and constructions as approved design for construction, installation then being checked and accepted in accordance with existing technical standards, meeting requirements of maintenance, repair and check of transmission lines, transformers, switchgears, reactive power stations in power transmission and distribution network;

2.Article 29 “General regulations on safety for electrical equipment and electricity works” of Decree No.: 105/2005/ND-CP “Decree on detailed regulations and guidelines on implementation of the Electricity Law” (August 17, 2005) stipulate as follows:

1.Electrical equipment design and manufacture, electricity works construction must conform to the sectoral standards, Vietnamese standards or proper international standards which were accepted by Vietnamese competent bodies, and must ensure the requirements on the safety as follows:

a)Electric safety;

b)Construction safety;

c)Safety on consuming primary energy resources (water, coal, petroleum, natural gas and other energy types)

d)Safety on firefightingand explosion-fighting

e)Ecological safety, industrial safety and hygiene.

2.Electrical equipment and devices, which have just been manufactured or imported must posses quality certificate or sealed with registered labels conform to the standards and regulations of the Law. Such electrical equipment and devices must be enclosed with user manuals covering technical specifications, functions, uses, as well as other warnings to keep the users from electrical faults and accidents.

3.Electricity works can be only put in operation after being testing, commissioning, adjusting and accepting as satisfaction of standards on the safety.

3.Article 30 “Safety in electricity generation, transmission and distribution” of Decree No.: 105/2005/ND-CP “Decree on detailed regulations and guidelines on implementation of the electricity Law” (August 17, 2005) stipulate as follows:

1.Once preparing for investing into construction of any power plant, substation and line, the investor must own full technical designs, construction designs, total and detailed cost estimates, which all have been approved, documents on completion of construction and installation and other technical documents as regulations of Law on construction for handing over to the operating and managing unit.

2.Before putting power plants, substations and lines into commercial operation, investors of such plants, substations and lines must carry out experiments, calibrating each part and all equipment in power generation, transmission system to ensure the conformity to technical standards, approved designs. Dossiers of experiment and calibration must be available in acceptance minutes of each part and entire project.

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3.In case where the overhead transmission lines pass the densely populated areas, operation managing unit must not allow the line to bear the load exceed standards and regulations.

4.Completion Inspection shall be conducted for acceptance of the electrical equipment for operation based on the provisions stipulated in QCVN Vol.5.

5.Decision 1987-No.48 NL-KHKT “Volume and Standards for Test, Acceptance and Hand Over of Electrical Equipment” has been still applied to the completion inspection for acceptance of electrical equipment in Vietnam.

Article 9. Acceptance of operation of power works

1.Article 9 of this regulation (Vol.4) requires the project owner to check and inspect all of the facilities listed in the article for acceptance.

2.Article 29 “General regulations on safety for electrical equipment and electricity works” of Decree No.: 105/2005/ND-CP “Decree on detailed regulations and guidelines on implementation of the electricity Law” (August 17, 2005) stipulate as follows:

1.Electrical equipment design and manufacture, electricity works construction must conform to the sectoral standards, Vietnamese standards or proper international standards which accepted by Vietnamese competent bodies, and must ensure the requirements on the safety as follows:

a)Electric safety;

b)Construction safety;

c)Safety on consuming primary energy resources (water, coal, petroleum, natural gas and other energy types)

d)Safety on firefightingand explosion-fighting

e)Ecological safety, industrial safety and hygiene.

3.The detailed method for checking and inspection must refer to the relevant standards and regulations available in Vietnam.

4.The paragraph 4 of Article 5 of this Guideline must be referred to regarding the regulations on environmental protection.

Article 10. Acceptance procedure

1. Purpose of acceptance test

Purpose of acceptance procedure is to confirm no-abnormality in power equipment by Owner before commercial operation or taking over for whole power equipment installed in the power plant by Contractor.

If the tests and inspections prove that any materials or components are of unsatisfactory quality or dimension, the Owner may be requested to perform any additional tests as may be required.

2.Test procedure

1)To perform run test for each component and accept each part of the equipment of machine assembly;

2)To start the primary and secondary equipment of machine assembly;

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3)To perform run test for the whole equipment.

4)Existing regulation (For reference)

a.11TCN-18-2006: Electrical facilities code – Part 1 – General requirement.

b.11TCN-19-2006: Electrical facilities code – Part 2 – Transmission and distribution network.

c.11TCN-20-2006: Electrical facilities code – Part 3 – Distribution and Substation.

d.11TCN-21-2006 : Electrical facilities code – Part 4 – Protection and Automation.

e.Decision No. QD 939-2009-EVN Acceptance and supervision of Power substation with rated voltage up to 500kV.

f.Decision No. QD-908-2008-EVN Acceptance and supervision of overhead line with rated voltage up to 500kV.

Article 11. Acceptance of equipment

Process of acceptance of equipment is as follows:

1.Test by subcommittee of Acceptance Committee

1)Various tests and running test of each part of equipment

2)Acceptance of each component of machine assembly and construction works

3)Checking the readiness of equipment

4)Running test of whole equipment

2.Acceptance by authorized Acceptance Committee

1)Review on results of acceptance tests by subcommittee

2)Acceptance to operate equipment and construction works

3.Point to be checked at acceptance of equipment

4.Reference documents:

1)TCVN 5639-1991: Acceptance for installed equipment. General rule.

Article 12. Acceptance of component

Process of acceptance component is as follows:

1.Test and check by Acceptance Committee

1)Assembling work of equipment

2)Trial run of each component of machine assembly

3)Checking implementation of the following regulations and standards:

-Regulations on construction

-Regulations on testing the steam

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-Technical safety standards

-Explosion prevention and fire prevention standards

-Electric equipment standards

-Manufacturers’ instructions

-Instruction for assembling of equipment

-Other legal document

2.Acceptance by authorized Acceptance Committee

1)Acceptance of each part of machine assembly

3.Point to be checked at acceptance of component

1)Deviation of actual performance of component from the required performancedescribed in design specifications.

Article 13. Acceptance for completion

Process of acceptance for completion is as follows:

1.Acceptance by State level Acceptance Committee

1)Running test of the whole equipment

2)Fixing all detected defects

3)Acceptance of equipment, dwelling houses, construction works relating to equipment

4)Making report of acceptance

2.Regulation by Competent Authority level Acceptance Committee

1)Regulating temporary operating period of equipment

2)Complete all necessary experiments

3)Adjusting and Completing the equipment

4)Ensuring operation of equipment according to the design specifications

5)Acceptance of equipment

3.Particular Application for the first batch of manufacturing

1)Regulating running test period based on combination of completing, adjusting and running test of equipment

2)Acceptance of equipment

4.Point to be checked at acceptance for completion

1)Deviation of actual performance of whole equipment from the required performance described in design specifications.

Article 14. Handover of documents

At the acceptance of the equipment and plant, handing over of various documentsmust be conducted from various units in charge to the plant operation unit al least as follows:

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