|
|
||||||||||||||||||
DL/T 5218-2012 PDF English (DL/T 5218-2005: Older version)Search result: DL/T 5218-2012 (DL/T 5218-2005 Older version)
DL/T5218-2012 (DLT5218-2012): PDF in EnglishDL/T 5218-2012 POWER INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.240 P 62 Registration number: J1459-2012 P DL/T 5218-2012 Replacing DL/T 5218-2005 Technical code for the design of 220kV ~ 750kV substation ISSUED ON: AUGUST 23, 2012 IMPLEMENTED ON: DECEMBER 01, 2012 Issued by: National Energy Administration Table of Contents Foreword ... 7 1 General provisions ... 9 2 Terms ... 10 3 Selection of the substation location ... 12 4 General plan & layout of the substation ... 14 4.1 Plan of the substation ... 14 4.2 General layout ... 14 4.3 Vertical arrangement ... 18 4.4 Trench layout ... 20 4.5 Road ... 21 4.6 Site treatment ... 22 4.7 Fence and gate ... 22 5 Primary electrical ... 24 5.1 Electrical circuit connection ... 24 5.2 Main transformer ... 26 5.3 Electrical installation ... 27 5.4 Reactive power compensation ... 29 5.5 Overvoltage protection & insulation coordination, grounding ... 29 5.6 AC station service ... 29 5.7 Lighting ... 30 5.8 Selection & laying of the cable ... 30 5.9 Auxiliary facilities ... 31 6 System and secondary electrical ... 32 6.1 Relaying protection and automatic device ... 32 6.2 Dispatch automation ... 32 6.3 Communication ... 33 6.4 Monitoring & control system and electrical secondary wiring ... 34 6.5 DC power system and uninterruptible power supply (UPS) ... 35 6.6 Arrangement of control room & relay room ... 35 6.7 Safety video monitoring system ... 36 7 Civil works ... 37 7.1 General requirement ... 37 7.2 Loads ... 37 7.3 Buildings ... 40 7.4 Structures ... 41 8 Heating, ventilation and air conditioning ... 45 8.1 Heating ... 45 8.2 Ventilation ... 45 8.3 Air conditioning ... 46 9 Water supply and drainage ... 47 10 Fire protection ... 48 10.1 General requirement ... 48 10.2 Firefighting facilities ... 48 10.3 Fire detection and fire alarm ... 49 11 Environmental protection ... 50 11.1 General requirement ... 50 11.2 Control of electromagnetic radiation ... 50 11.3 Control of noise ... 50 11.4 Treatment of waste water ... 51 11.5 Water-soil conservation and ecological environment protection ... 51 12 Labor safety and occupational health ... 53 12.1 General requirement ... 53 12.2 Labor safety ... 53 12.3 Occupational health ... 54 13 Energy saving ... 56 13.1 General requirement ... 56 13.2 Electrical energy saving ... 56 13.3 Building and thermal energy saving ... 56 13.4 Heating, ventilation and air condition energy saving ... 57 13.5 Water saving ... 58 Explanations of wording in this standard ... 59 List of quoted standards ... 60 Technical code for the design of 220kV ~ 750kV substation 1 General provisions 1.0.1 In order to meet the needs of national and industry standardization construction, reach a unified standard technical principle for design of substation, allow the design of substation to meet the relevant national policies, laws, regulations, reach the requirements of safety and reliability, advanced and applicability, energy saving and environmentally friendly, it hereby develops this standard. 1.0.2 This standard is applicable to the design of the newly built, reconstructed, extended work of substation (switchyard) which has an AC voltage of 220kV ~ 750kV. 1.0.3 Substation design shall be combined with engineering features, actively and deliberately adopt new technologies, new device, new materials, new processes with application conditions. 1.0.4 In addition to the implementation of this standard, the design of substation shall also comply with the relevant national standards. 2 Terms 2.0.1 Substation Part of the power system, which is concentrated in a defined location, including terminals, switches and control device, buildings and transformers for power transmission or distribution. It usually includes the facilities (such as protective devices) required for the safety and control of power system. 2.0.2 Uninterruptible power supply The power supply which consists of a battery pack, an inverter, other circuits, that provides AC power when the power grid is out of power. 2.0.3 Substation automation system A computer application system that implements functions such as information collection, processing, monitoring, control, operation management of substation based on computer, network, communication technologies. 2.0.4 Unattended operation mode An operation management mode, in which the operation monitoring of the substation and the main control operation are carried out by the remote control end, the device of the substation is regularly patrolled and maintained. There are no on-duty personnel in the substation for fixed operation and maintenance. 2.0.5 Relay room A place where the relay protection, automatic devices, transmitters, energy accumulation and recording instruments, auxiliary relay screens, etc., are installed. 2.0.6 Time synchronization system 3 Selection of the substation location 3.0.1 The site selection of the substation shall be based on the network structure, load distribution, urban-rural planning, land acquisition & demolition and the following provisions of the power system planning and design. It shall use technical and economic comparison and economic benefit analysis to select the optimal solution of site location. 3.0.2 When selecting the substation's location, pay attention to saving land and using the land reasonably. Try to use wasteland and inferior land, do not occupy or occupy less cultivated land or land of high economic benefits, minimize the earthwork or stonework. 3.0.3 The selection of substation's location shall conform to the approved prospective development plan of the power system in the region, meet the requirements for cable laying, reserve the laying channel of overhead and cable lines, avoid or reduce the crossover of overhead lines. The location of the terminal tower of overhead line should be arranged uniformly when planning the substation's location. 3.0.4 The selection of substation's location shall be based on transportation conditions and substation's construction needs, facilitating the connection of incoming roads and large-piece transportation. It shall use the technical and economic comparison to implement the large-piece transportation plans. 3.0.5 The substation's location shall have suitable geological and topographical conditions. It shall avoid unfavorable geological structures such as landslides, debris flows, subsidence zones, earthquake-fracture zones. It should avoid submerged caves, goafs, exposed and concealed river ponds, shore scouring areas, areas prone to rolling stones, try to avoid or reduce damage to forests and natural landscapes. 3.0.6 The substation's location shall avoid the natural areas and cultural relics that are mainly protected, do not cover the mineral resources. Otherwise, it shall obtain the written consent of the relevant departments. 3.0.7 The selection of substation's location shall meet the requirements of flood control and prevention. Otherwise, it shall take flood control and prevention measures. 3.0.8 There shall be a reliable source of water for production and domestic use near the substation's location. When groundwater is used as a water source, it shall carry out hydrogeological surveys or explorations, submit report. 3.0.9 There shall be reliable power supply around the substation's location which meet the requirements of substation construction and external power 4 General plan & layout of the substation 4.1 Plan of the substation 4.1.1 The general plan of the substation shall be coordinated with the local urban planning or industrial zone planning. It should make full use of the nearby public facilities such as traffic, water supply and drainage, flood control. 4.1.2 The layout of substations shall, based on the needs of process technology, operation, construction and expansion, combined with the needs of life and the natural conditions of the site, be planned according to the final scale, combining short-term and long-term, focusing on short-term. It should requisite land in phases according to the building needs. Production areas, access roads, cable incoming & outgoing corridors, location of terminal towers, location of water sources, water supply and drainage facilities, flood discharge and flood control facilities shall be arranged in a unified and rational manner. 4.1.3 For the substation in flood control and seismic fortification areas, it shall, based on such factors as geology and topography, arrange the main production constructions (structures) in relatively favorable areas. 4.1.4 The positioning of substation's location shall rationally use geological and topographical conditions. For the high and steep slope, it shall analyze its stability and the impact on the building and structures, take safety measures to prevent human and animal from falling. 4.1.5 The site of substation should adopt a flat slope layout. When the terrain has a large height difference, it may use a step arrangement. 4.2 General layout 4.2.1 The combination of plane and space of substation buildings shall, according to the process requirements, make full use of natural terrain, to ensure that the layout is compact and reasonable and the expansion is convenient. 4.2.2 The layout of the supporting and auxiliary buildings of the substation shall be uniformly planned according to the process requirements and use functions. It should, combining with the engineering conditions, use the combined building and multi-floor building, to improve the efficiency of use of the site and save land. 4.2.3 The type selection of power distribution device shall be adapted to local conditions. When the technical and economic indicators are reasonable, it 2. It the adjacent exterior walls of the two buildings are non-combustible .......Source: https://www.ChineseStandard.net/PDF.aspx/DLT5218-2012 |