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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. DL/T 2034.3-2019: Technical conditions of power energy substitution equipment access to power grid -- Part 3: Distributed power heating equipment Status: Valid
Basic dataStandard ID: DL/T 2034.3-2019 (DL/T2034.3-2019)Description (Translated English): Technical conditions of power energy substitution equipment access to power grid -- Part 3: Distributed power heating equipment Sector / Industry: Electricity & Power Industry Standard (Recommended) Classification of Chinese Standard: F20 Classification of International Standard: 27.010 Word Count Estimation: 7,716 Date of Issue: 2019-06-04 Date of Implementation: 2019-10-01 Quoted Standard: GB/T 12326; GB/T 14549; GB/T 15543; GB/T 22239; GB 50054; GB 50217; GB 50303; DL/T 448; DL/T 2034.1-2019 Regulation (derived from): Natural Resources Department Announcement No. 7 of 2019 Issuing agency(ies): National Energy Administration Summary: This standard specifies the basic requirements for decentralized electric heating equipment, technical requirements for access to the power grid, protection requirements, measurement requirements, power quality requirements, electromagnetic compatibility requirements, safety indicators and power grid information interaction requirements, and testing rules. This section applies to the installation, testing, operation, and acceptance of 220 V/380 V voltage level distributed electric heating equipment connected to the power grid. DL/T 2034.3-2019: Technical conditions of power energy substitution equipment access to power grid -- Part 3: Distributed power heating equipment---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Technical conditions of power energy substitution equipment access to power grid Part 3.Distributed power heating equipment ICS 27.010 F 20 Record number. 63143-2018 People's Republic of China Electric Power Industry Standard Technical conditions for power substitution equipment to connect to the grid Part 3.Distributed electric heating equipment 2019-06-04 released 2019-10-01 implementation Issued by National Energy Administration Table of contentsForeword...II 1 Scope...1 2 Normative references...1 3 Definition of terms...1 4 Basic regulations...1 5 Technical requirements for grid connection...2 6 Protection requirements...2 7 Measurement requirements...3 8 Power quality requirements...3 9 Electromagnetic compatibility requirements...3 10 Safety Index...3 11 Requirements for information interaction with the power grid...4 12 Detection Rules...4Foreword--Part 1.General rules; --Part 2.Electric boiler; --Part 3.Distributed electric heating equipment. This part is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this standard may involve patents, and the issuing organization of this document does not bear the responsibility for identifying these patents. This part was proposed by the China Electricity Council. This part is under the jurisdiction of the National Smart Grid User Interface Standardization Technical Committee. The main drafting units of this section. China Electric Power Research Institute Co., Ltd., State Grid Co., Ltd., Inner Mongolia Electric Power (Group) Limited Liability Company, State Grid Tianjin Electric Power Company, Shandong Dexiang Electric Technology Co., Ltd., State Grid Beijing Electric Power Company, China Southern Power Grid Limited Liability Company, State Grid Hunan Electric Power Co., Ltd., Beijing Tianrui Xiangde Measurement Technology Co., Ltd., State Grid Jibei Electric Power Co., Ltd., State Grid Shandong Electric Power Company, State Grid Gansu Electric Power Company, Beijing Ruiteai Energy Technology Co., Ltd., State Grid Hebei Electric Power Co., Ltd. Company, State Grid Jiangxi Electric Power Co., Ltd., Beijing No. 3 Construction Engineering Co., Ltd., Yantai Oriental Weston Electric Co., Ltd. The main drafters of this section. Yan Huaguang, Zhong Ming, Zhang Xinghua, Cheng Ling, Jin Lu, Sun Honglei, Li Kecheng, Wang Yan, Wang Peng, Huo Xianxu, Sun Qinfei, Wang Zhiliang, Huang Wei, Liu Xiaoxiao, Luo Fan, Zhang Chaoyang, Zhang Xiaoyi, Zhang Kai, Zhou Qi, Zhang Jianhua, Zhang Xinhe, Liu Wei, Xue Ying Ying, Xie Zunchen. If you have any comments or suggestions during the implementation of this standard, please send them to the Standardization Management Center of the China Electricity Council (Address. Beijing West No. 1 Ertiao, Baiguang Road, City District, Zip Code. 100761). Technical conditions for electric energy substitution equipment to connect to the grid. Part 3.Dispersed electric heating equipment1 ScopeThis part specifies the basic requirements for distributed electric heating equipment, technical requirements for access to the grid, protection requirements, metering requirements, power quality Requirement for quantity, electromagnetic compatibility, information interaction with power grid, and inspection rules. This section applies to the installation, testing, operation, and acceptance of 220V/380V voltage level distributed electric heating equipment connected to the power grid.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 12326 Power quality voltage fluctuation and flicker GB/T 14549 Power quality public grid harmonics GB/T 15543 Three-phase voltage unbalance degree of power quality GB/T 22239 Information Security Technology Information System Security Level Protection Basic Requirements GB 50054 Low Voltage Power Distribution Design Code GB 50217 Cable Engineering Cable Design Code GB 50303 Code for Construction Quality Acceptance of Building Electrical Engineering DL/T 448 Technical Management Regulations for Electric Energy Metering Devices DL/T ****.1-20** Technical conditions for connecting electric energy substitute equipment to the power grid. Part 1.General rules3 Definition of termsThe following terms and definitions apply to this document. 3.1 Decentralized electric heating equipment Heating equipment that uses electricity as an energy source and the heat source is indoors and can be flexibly controlled. According to the need for construction, it can be divided into plug and play Type, system laying type; according to the type of equipment heating, it is divided into. direct heat, heat pump, heat storage type. 3.2 Plug and play type electric heating equipment The equipment comes with a power cord and plug, which can be used directly after connecting to the power supply. Mainly refers to the appearance of radiator, screen, heating Fans and other forms, you can directly purchase finished products, and meet the plug-and-play characteristics of small indoor electric heating equipment. 3.3 System laying electric heating equipment system laying electric heating equipment After installation and laying, electric heating equipment mainly refers to heating cables, electric heating films, carbon crystals and other household floor heating types that need to be constructed and laid. Or wall-heating electric heating equipment, and electric heating equipment that uses fluid as a working substance to heat through radiators or buried pipes.4 Basic regulationsDispersed electric heating equipment is divided into plug and play type and system laying type according to whether it needs to be constructed or not. The specific classification is shown in Table 1.5 Technical requirements for access to the grid5.1 General requirements for access to the grid The general requirements for access to the grid are as follows. a) The decentralized electric heating equipment connected to the power grid should meet the requirements of the current relevant standards for each equipment; b) Distributed electric heating equipment connected to the power grid should have corresponding safety measures, which should not affect the safe operation of the power grid; c) When equipment is connected to the power grid, full consideration shall be given to the power supply capacity of the access point to ensure the safety of the power grid and the power supply of the equipment. 5.2 Voltage level The access voltage of distributed electric heating equipment is 220V or 380V. 5.3 Access method Access method requirements. a) When the equipment capacity is not greater than 4kVA, plug and play should be adopted to connect to the grid; b) When the equipment capacity is greater than 4kVA and less than the remaining indoor power capacity, it should be connected to the indoor low-voltage distribution box; c) When the equipment capacity is greater than the remaining indoor power capacity, additional capacity should be applied for. 5.4 Access to grid lines and equipment The requirements for access to the power grid are as follows. a) Plug-and-play distributed electric heating equipment is directly connected to the indoor line through a plug, and the current carrying capacity of the line involved should not be less than the equipment When the equipment is working normally, the temperature of the cable conductor should meet the requirements of GB 50217; b) System laying type distributed electric heating equipment, the cross section of the wire connected to the grid line is selected according to the economic current density, and according to the long-term permit The heating and mechanical strength conditions are checked.6 Protection requirementsThe protection requirements for the lines connected to the grid are as follows. a) The protection of the line connected to the power grid should meet the requirements; b) The equipment should be equipped with short-circuit protection and leakage protection; c) The low-voltage switchgear and protection of the distribution line where the equipment is connected to the power grid shall meet the requirements of GB 50054; d) The sockets of distributed electric heating equipment with grounding wires must have grounding holes; e) The power distribution construction connected to the power grid should meet the requirements of GB 50303; f) The distribution lines connected to the power grid should be laid through pipes. When installing an electric heating circuit on the ground, the line should be laid along the wall, and the pipeline must not pass Go beyond the equipment installation area. The metal device used for the local equipotential connection of the electric heating circuit should be reliably connected to the protection neutral line of the power distribution system Connect g) The metal device used for installation and fixation should be reliably connected to the protection neutral line of the power distribution system.7 Measurement requirementsThe measurement requirements are as follows. a) For distributed electric heating equipment with separate power supply, an independent electric energy metering device should be equipped; for non-independent electric energy replacement The equipment should be equipped with an electric energy metering device following the equipment; b) The configuration and technical requirements of the electric energy metering device should comply with DL/T 448; c) The electric energy metering device should have the ability to transmit data to the grid metering/billing system; d) If there are special requirements for power quality, relevant equipment should be configured by itself.8 Power quality requirements8.1 Harmonics and interharmonics After the distributed electric heating equipment is connected, the harmonic voltage limit value, the allowable value of harmonic current, the limit value of interharmonics, etc. injected into the public grid Meet the requirements of GB/T 14549. 8.2 Power factor The power factor of distributed electric heating equipment shall not be lower than 0.9. 8.3 Voltage unbalance After the decentralized electric heating equipment is connected, the voltage imbalance caused by the access point shall meet the requirements of GB/T 15543. 8.4 Voltage fluctuation and flicker After the decentralized electric heating equipment is connected, the allowable value of voltage fluctuations due to load fluctuations such as equipment start and stop shocks shall comply with GB/T 12326 The limit.9 EMC requirementsThe electromagnetic compatibility of decentralized electric heating equipment shall comply with the provisions of Section 7.2. 10 Safety indicators Dispersed electric heating equipment should be designed and manufactured in accordance with relevant national standards to ensure that the equipment does not cause damage to personnel, property and the environment during normal use. Hazards, and fully consider the hazards that may be caused when the equipment is abnormal. The safety index should meet the requirements of 7.3, At the same time, the following requirements should also be met. a) The performance indicators of the equipment should meet the requirements of the relevant standards of each equipment; b) The nominal insulation resistance test and continuity test should be carried out before the equipment is installed; c) The exposed conductive parts and metal shell of the equipment should have a reliable electrical connection with the grounding device; d) The wire diameter used for system laying of distributed electric heating equipment should meet the requirements of GB 50217. 11 Requirements for information interaction with the power grid The requirements for the interaction between the distributed electric heating equipment and the power grid should be met, and the following requirements should also be met. a) Interactive function. the decentralized electric heating equipment should be equipped with a temperature control system, which can control the electrical parameters, thermal parameters and environment of the decentralized electric heating equipment Monitoring control and comprehensive management of parameters, etc., capable of real-time control of the heating status of the equipment, and real-time acceptance of grid electricity prices Signal function, etc.; b) Interaction ability. It should have the ability to communicate with the power grid, and be able to collect the operating conditions of electric heating equipment and upload it to The power grid, which also has the ability to accept power grid control and regulation commands; c) Information security. Information and communication security protection measures shall be provided, and shall comply with the regulations of GB/T 22239. 12 detection rules 12.1 Inspection classification Equipment inspection is divided into two types. factory inspection and type test. The inspection items are carried out in accordance with the relevant standards of various equipment. 12.2 Factory inspection The factory test requirements are as follows. a) The equipment should be inspected one by one before leaving the factory. Only after all the inspection items are qualified, the factory can be allowed to leave the factory; b) The factory inspection of equipment should be inspected one by one according to the items specified in the relevant standards of various equipment. 12.3 Type test Type test should be carried out in one of the following situations. a) When new equipment is trial-formed and evaluated; b) When there are major changes in design, process or materials that may affect product performance; c) When production is stopped for more than one year, and production is resumed; d) During normal production, at least once every two years; e) When the national quality supervision department supervises and conducts random inspections. 12.4 Equipment efficiency requirements The efficiency of the equipment should meet the requirements of the relevant standards of each equipment product, and those that do not meet the requirements should not be connected to the grid. ...... |
