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GB/T 40093-2021: Life cycle assessment method for transformer Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 40093-2021: Life cycle assessment method for transformer---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT40093-2021GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.020 K 04 Life cycle assessment method for transformer ISSUED ON: MAY 21, 2021 IMPLEMENTED ON: DECEMBER 01, 2021 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 5 4 Product life cycle assessment ... 6 5 Life cycle report ... 11 Appendix A (Informative) Examples of the process flow diagrams of the transformer product manufacturing stage ... 12 References ... 14 Life cycle assessment method for transformer1 ScopeThis Standard specifies the life cycle assessment and life cycle report of transformer products. This Standard applies to the life cycle assessment of transformer products; transformer products make Type III environmental declaration in accordance with GB/T 24025-2009. Note: According to GB/T 24025-2009, this Standard is a product category rule for transformer products to carry out type III environmental declaration. The use of product category rules when making type III environmental declaration helps to ensure the credibility and comparability of life cycle assessment conclusions. This Standard applies to the power transformers that are specified in GB/T 1094.1, including transformers directly supplied to end users (final products) and transformers as part of equipment (intermediate products). It can also be used as reference for other similar transformer products.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1094.1, Power transformers - Part 1: General GB/T 24025-2009, Environmental labels and declaration - Type III environmental declarations - Principles and procedures GB/T 24040-2008, Environmental management - Life cycle assessment - Principles and frameworks GB/T 24044-2008, Environmental management - Life cycle assessment - Requirements and guidelines GB/T 37552-2019, Guidance on life cycle assessment for electrical and electronic products The product description shall enable users to clearly identify the product, such as: a) product name; b) product model, specification or dimensions; c) parameters related to product weight; d) main technical parameters and performance of the product; e) relevant quality standards that the product meets; f) other marks obtained by the product, etc. It can be described with reference to the requirements of relevant transformer standards. 4.2 Product life cycle assessment scope 4.2.1 Functional unit This Standard takes "1 transformer" as the functional unit; the description of the functional unit shall include, but is not limited to: a) function of the product (that is, the service to the user); b) rated capacity; c) rated voltage; d) rated frequency; e) phase number; f) cooling method; g) reference life time (design life). Note: For 1 three-phase dry-type distribution transformer, the rated capacity is 315 kVA; the rated voltage is 10/0.4 kV; the rated frequency is 50 Hz; the cooling method is AN/AF; the reference life time is 20 years. The reference flow of the corresponding functional unit includes: a) reference product that realizes the functions described in the functional unit; ΔP – active power loss, in kilowatts (kW); P0 – no-load loss, in kilowatts (kW); β – average annual load rate of the transformer, dimensionless; PK – rated load loss, in kilowatts (kW). Where: ΔQ – reactive power loss, in kilowatts (kW); Q0 – No-load reactive power loss, in kilovars (kvar); KQ – reactive economic equivalent, in kilowatts per kilovar (kW/kvar); β – average annual load rate of the transformer, dimensionless; QK – rated load leakage magnetic power, in kilovars (kvar). Where: Q0 – No-load reactive power loss, in kilovars (kvar); I0 – percentage of no-load current of the transformer, in percentages (%); SN – rated capacity of the transformer, in kilovolt-amperes (kVA). Where: QK – rated load leakage magnetic power, in kilovars (kvar); UK – percentage of the short-circuit impedance, in percentages (%); SN – rated capacity of the transformer, in kilovolt-amperes (kVA). Where: ΔPZ – total loss, in kilowatts (kW); ΔP – active power loss, in kilowatts (kW); KQ – reactive economic equivalent, in kilowatts per kilovar (kW/kvar); ΔQ – reactive power loss, in kilowatts (kW). The above parameters shall be determined according to the specific conditions of the product. Examples are as follows: When taking the minimum load of the 6 kV ~ 10 kV step-down transformer which is used in urban power grids and industrial enterprise power grids, its reactive power equivalent KQ = 0.1 kW/kvar; the average annual load rate of the transformer, for agricultural transformers, may be β = 20%; for industrial enterprises of three-shift system, it may be β = 75%; for P0, PK, I0%, UK%, see product information. 4.3.1.2.2 Maintenance requirements If applicable, the maintenance frequency of the product and the parts and materials used for maintenance shall be stated. 4.3.1.3 End-of-life stage The following processing links shall be considered for all elements of the life cycle and recorded in the life cycle assessment report: a) product/material disposal process (energy recovery, landfill); b) product/material recycling (reuse, recycling or energy recovery). If the data processed at the end-of-life stage is not available, the transportation of end-of-life waste and the types of waste materials shall be considered. 4.3.2 Data unit 4.3.2 in GB/T 37552-2019 applies. 4.3.3 Data collection requirements 4.3.3 and 4.3.4 in GB/T 37552-2019 apply. 4.3.4 Data quality assessment 4.4 in GB/T 37552-2019 applies. 4.3.5 Cut-off criteria 4.5 in GB/T 37552-2019 applies. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 40093-2021 be delivered?Answer: The full copy PDF of English version of GB/T 40093-2021 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 40093-2021_English with my colleagues?Answer: Yes. 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