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TRAINING TEXT Vietnam

Standards for Judgment by Enterprises Regarding
Rationalization of
Energy Use at Plants and Business Establishments
(Ministry of Economy, Trade and Industry Notification No. 4, Jan. 10, 2003)

6. Prevention of electrical loss due to resistance, etc.
(1) Management of receiving and transforming facilities and distribution facilities
  1) In the case of transformers, management standards shall be established to maintain an appropriate demand factor, and the number of units in operation shall be adjusted and load allocated appropriately
  2) Management standards shall be established regarding reducing distribution lines and improving distribution voltage by improving the arrangement of receiving and transforming facilities and changing the method of distribution in order to reduce distribution loss.
  3) The power factor at the receiving end shall be increased through the installation of equipment such as condensers or capacitors to increase the power factor at the facilities set forth in Attached Table 4 (excluding equipment of a capacity of less than that stipulated in said table) or transforming facilities; provided, however, that this shall not apply in the case of onsite auxiliary facilities at power plants.
  4) Power capacitors shall be managed in accordance with management standards established to ensure operation or cessation of operation in accordance with the operation or cessation of operation of the facilities at which they are installed
  5) In the event of connection of single-phase load to a three-phase power source, management standards shall be established and followed to prevent imbalances in voltage.
  6) Management standards shall be established regarding the operation of facilities using electricity (“electricity-using facilities”), and operation shall be adjusted to equalize voltage at plants and maximum current reduced
  7) Supply of electricity to electricity-using facilities shall also be managed in accordance with standards established regarding voltage and current and other matters necessary to reducing electrical loss at receiving and transforming facilities and distribution facilities corresponding to the type, operating status and capacity of electricity-using facilities.

(2) Measurement and recording regarding receiving and transforming facilities and distribution facilities
  Management standards shall be established regarding the measurement and recording of electricity use at a plant and voltage, currency and other matters necessary to reducing electrical loss at receiving and transforming facilities and distribution facilities, and such matters shall be regularly measured and the results recorded in accordance with said standards.

(3) Maintenance and inspection of receiving and transforming facilities and distribution facilities
  Management standards shall be established regarding maintenance and inspection to maintain receiving and transforming facilities and distribution facilities in good condition, and regular maintenance and inspection shall be performed in accordance with said standards.

(4) Measures regarding fresh installation of receiving and transforming facilities and distribution facilities
  In the case of fresh installation of receiving and transforming facilities and distribution facilities, proper consideration shall be given to past demand for electric power and future trends, and the arrangement, distribution voltage and facility capacity of receiving and transforming facilities shall be determined accordingly.



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