- •Table of Contents
- •List of Tables
- •List of Figures
- •List of Photos
- •Abbreviation
- •Chapter 1 Organizational Structure and Duties
- •Chapter 2 Acceptance of Equipment and Plants for putting in Operation
- •Chapter 3 Personnel Preparation
- •Chapter 4 Plan for Repair of Equipment, Plant and Construction
- •Chapter 5 Safety Technology
- •Chapter 6 Fire Prevention Equipment
- •Chapter 1 Plan
- •Chapter 1 General Provisions
- •Chapter 2 Civil Works and Mechanical Equipment for Civil Works
- •Section 1 Civil Works
- •Section 2 Check of Civil Works' Condition
- •Section 3 Mechanical Equipment for Civil Works
- •Chapter 3 Management of Water Sources in Powerhouses, Assurance of Meteorology and Hydrology
- •Section 1 Water Regulation
- •Section 2 Environment in Reservoir
- •Section 3 Hydro-Meteorological Activities
- •Chapter 4 Hydraulic Turbine / Generator
- •Chapter 1 General Provisions
- •Chapter 2 Fuel Transportation and Supply
- •Chapter 3 Pulverized Coal Processing
- •Chapter 4 Boiler and its Auxiliary
- •Chapter 5 Steam Turbine and its Auxiliary
- •Chapter 6 Unit-type of Thermal Power Plants
- •Chapter 7 Gas Turbine and its Auxiliary
- •Chapter 8 Diesel Generator
- •Chapter 9 Automation and Thermo-measuring Equipment
- •Chapter 10 Water Treatment and Hydration
- •Chapter 11 Pipelines and Valves
- •Chapter 12 Auxiliaries for Thermo-mechanical Section
- •Chapter 13 Environmental Protection Facilities
- •Chapter 1 General Provision
- •Chapter 2 Generator and Synchronous Compensator
- •Chapter 3 Electric Motor
- •Chapter 5 DISTRIBUTION NETWORK
- •Chapter 6 BATTERY SYSTEM
- •Chapter 7 OVERHEAD POWER LINES (OPL)
- •Chapter 8 Power Cable Lines
- •Chapter 9 PROTECTIVE RELAY AND AUTOMATION
- •Chapter 10 Grounding Equipment
- •Chapter 11 OVER-VOLTAGE PROTECTION
- •Chapter 13 Illumination
- •Chapter 14 Hydrogen Generation Station
- •Chapter 15 Energy Oil
- •Chapter 1 LOAD DISPATCH COMMAND
- •Chapter 3 OPERATOR
- •Chapter 4 DISPATCHING AND CONTROLLING DEVICES
Article 370. Install circuit for measuring equipmentof
As for the electrical indicators and measuring instruments for transformers and transmission lines of 220kV or more, since the concerned transformers and the transmission lines are ranked, the concerned indicators and measuring instruments shall have a high reliability.
Therefore, equipment configuration of measuring system shall adopt independent configuration for each circuit instead of time sharing control of input translator for multi-circuits which is adopted with the measuring instruments of less than 220kV lines etc., and better equipped with two systems..
Article 371. Principle installation of electricity meters
Principle installation of electricity meters comply with Chapter 2-6 measure the electrical system in the Technical Regulations Guide Volume 1
Main equipment shall install electric power metersas well aspreliminary equipment for every equipment because the station service power in the power plant is greatly different according to the state of operating of main equipment.
The station service power shall be confirmed not only during normal operation but also in the starting process of each equipment of main equipment. Because it is importantot confirm whether the power consumption of each equipment is appropriate.
Article 372. Measure the power consumption
In the substation, the power consumption of the office, station service power and the electric power loss of the substation equipment shall be managed separately.
Article 373. Installed meter at feeders
It is necessary to install the measurement devices for each transmission line and distribution line of 35kV or more in order to manage the power loss, supervise the power flow and confirm the current changes at the time of circuit breaker operation and so on.
Chapter 13 Illumination
Article 374. General provision
1. Luminaires and lamps for indoor and outdoor use
Luminaires and lamps should be properly operated for mainly productivity and safety reasonIt. is recommended for this reason to operate and maintain the luminaires and lamps depending on manufacturer’s instructions, recommendation and the following.
(1) Horizontal illuminance level
The following types of lampsare widely used for illumination and theirlifetime is generally from 6,000 to 12,000 hours.
-Fluorescent lamp
-High intensity discharge (HID) lamp
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(Mercury vapour lamp, Metal halide lamp, Sodium vapour lamp) |
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Since illuminance level declines as lamps operate, replacing with new lamps and periodical |
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cleaning of |
uminairesl |
and these |
lamps |
are generally needed to maintain a required |
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illuminance level. In addition, Horizontal lluminance level should not be below minimum |
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maintained |
lluminance |
according |
to |
the |
design, |
International |
Organization |
for |
Standardization (ISO) 8995-1 and ISO 8995-3. |
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A part of horizontal minimum maintained lluminances according to ISO 89951and - ISO 8995-3 are shown in Table 3741-. It is recommended to conform to these designated values, however, these standards do not give anyuniformity of illuminance for eachfacility of the electric power sector,and accordingly an example of horizontal lluminances for a power plant and substation is shown in Table 374-2.
Table 374-1 A part of horizontal minimum maintained illuminances
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Minimum |
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Location and activities |
maintained |
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Illuminance (lx) |
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1 Indoor |
- |
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Entrance, restroom, |
100 |
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Archives, storage |
100 |
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Corridors, restroom |
100 |
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Stairways |
150 |
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Canteen |
200 |
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Conference rooms |
500 |
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Mechanical hall, Auxiliary rooms (e.g. pumps, |
200 |
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switchboard) |
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Control room |
500 |
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2 Outdoor |
- |
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(1) For working safety during working |
- |
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Coal yard |
5 |
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Oil storage tanks |
20 |
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Switch yard |
50 |
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(2) For zone or activities |
- |
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Low speed traffic (maximum speed: 10km/h) |
10 |
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Low speed traffic (maximum speed: 40km/h) |
20 |
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Walkways, Patrol |
50 |
Table 374-2 An example of horizontal illuminances for a power plant and substation
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Minimum |
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Location |
maintained |
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Illuminance (lx) |
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Control room |
500 |
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Turbine floor |
200 |
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Auxiliary rooms for relay boards, communication boards |
150 |
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and security guards |
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Around high or low voltage switchgears and controlgears |
100 |
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Location |
Minimum |
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maintained |
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Illuminance (lx) |
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Auxiliary rooms for batteries and feed water control |
70 |
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Around field instrument panel |
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Around auxiliaries for a boiler, turbine, flue-gas |
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desulfurization equipment and coal conveyors, indoor coal |
35 |
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yard, oil storage tanks |
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Around auxiliaries for fuel supply, indoor switchyard |
25 |
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(substation) |
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Outdoor auxiliaries, Walkways for a boiler, flue-gas |
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desulfurization equipment and coal conveyors, switchyard |
15 |
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(substation) |
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Transformer yard |
10 |
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Outdoor roads, coal yard |
5 |
(2) |
Operating voltages |
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Operating at a rated voltage of the lamp mentioned above is needed because if operating |
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voltages are lower or higher than the rated voltages, this will shorten the lifetime.Also, Lamp |
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flickering or drop-out will occur if an operating voltage is lower than the rated voltage. |
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(3) |
Security floodlight |
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A luminaire and lamp intendedto assist with the identification of intruders and to prevent |
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intrusion onto the premises of a power plant andsubstation is used for security reason. A |
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sodium vapour lampas a security floodlight is avoided because orange or yellow |
light |
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produced by it will interfere with the identification of intruders. Recently, perimeter intrusion |
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detection system using laser-sensing or fiber optics, etc. has been utilized to provide reliable |
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perimeter security. It is suggested for security to take the perimeter intrusion detection system |
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into consideration. |
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(4) Consideration against dust or hazardous substance |
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A luminaire and lamp should conform to IEC60529 when it is installed or located ni the area |
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of dust or hazardous substance. |
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(5) |
Applicable Standards |
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Standards for the lighting such aslluminance level and unified glare rating (UGR) are as |
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follows: |
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- ISO 8995-1:2002(E)/CIE S008/E: 2001: Lighting of Work Places Part 1: Indoor *1 |
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- ISO 8995-3:2006(E)/CIE S016/E: 2005: Lighting of Work Places Part 3: |
Lighting |
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Requirements for Safety and Security of Outdoor Work Places *1 |
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- JIS Z 9110: 1979 Recommended Levels of illumination |
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- JIS Z 9125: 2007 Lighting of indoor work places |
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- JIS Z 9126: 2010 Lighting of outdoor work places
- IEC 60598-1 1992 Luminaires - Part 1: General requirements and tests - IEC 60529:2001 Degrees of protection provided by enclosures (IP Code)
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Note:
*1 CIE: International Commission on Illumination
2. Obstruction lights for a smokestack |
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Required obstruction lights (aircraft warning lights) which are intended to reduce |
the hazards |
to |
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aircraft |
by indicating the presence of a smokestack are as stated “Decree on the |
management |
of |
heights |
of aviation barricades and battlefields for management andprotection of Vietnam's airspace” |
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(No. 20/2009/ND-CP). Unless otherwise provided for the decree and related regulations, general matters are as follows:
(1)Lamp types
1)Low intensity red obstruction lights are used to provide conspicuity during nighttime and are operated by a control device such as a photo cell, timer, etc. so the lights will be turned on or off.
2)Medium intensity flashing white obstruction lights are used to provide conspicuity both day and night. The light intensity is automatically controlled by a device that changes the intensity when the ambient light changes.
3)High intensity flashing white obstruction lights are used to provide the highest degree of conspicuity both day and night. The light intensity is automatically controlled by a device that changes the intensity when the ambient light changes.
4)Dual lighting system with above lights
(2)Operation
An Objective such asconspicuity is achieved |
only when |
allrequired lights are operating. |
Since a artialp equipment outages decrease |
themargin |
of safety, any outage should be |
corrected as soon as possible. Recently, a light emitting diode (LED)-based lamps designed to replace medium intensity xenon strobe lamp have been utilized for long lampItlifeis. suggested for low maintenance operation to take the LED-based lamps into consideration.
3. Emergency lightings
Unless otherwise provided for laws and related regulations, recommended items are as follows:
(1)Locations where an emergency lighting is installed
-Indoor locations shown in Table 374-2
-Indoor corridors, stairs and walkways
-Surrounding area of an emergency generator
-Surrounding area of an seal oil system for a hydrogen cooled generator
-Walkways from control rooms to outdoor
(2)Horizontal illuminance
It is desirable that horizontal illuminance of floor level of the locations mentioned above is at least 2 lx.
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