GB/T 28046.2-2019 PDF EnglishUS$255.00 · In stock · Download in 9 seconds
GB/T 28046.2-2019: Road vehicles -- Environmental conditions and testing for electrical and electronic equipment -- Part 2: Electrical loads Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 28046.2: Historical versions
Similar standardsGB/T 28046.2-2019: Road vehicles -- Environmental conditions and testing for electrical and electronic equipment -- Part 2: Electrical loads---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/GBT28046.2-2019 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.10 T 36 Replacing GB/T 28046.2-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2. Electrical loads (ISO 16750-2.2012, MOD) Issued on. OCTOBER 18, 2019 Implemented on. MAY 01, 2020 Issued by. State Administration for Market Regulation; Standardization Administration of the PRC. Table of ContentsForeword... 3 1 Scope... 7 2 Normative references... 7 3 Terms and definitions... 7 4 Tests and requirements... 8 4.1 General... 8 4.2 Direct current supply voltage range... 8 4.3 Overvoltage... 9 4.4 Superimposed alternating voltage... 10 4.5 Slow decrease and increase of supply voltage... 12 4.6 Transient changes in supply voltage... 13 4.7 Reversed voltage... 21 4.8 Ground reference and supply offset... 21 4.9 Open circuit... 22 4.10 Short circuit protection... 23 4.11 Withstand voltage... 24 4.12 Insulation resistance... 25 Annex A (Informative) Origin of load dump in vehicle electrical systems... 26 Annex B (Normative) Test load dump pulse generator verification... 27 Annex C (Informative) Flammability test of plastic materials for parts in devices and appliances... 28 Bibliography... 34ForewordGB/T 28046 "Road vehicles - Environmental conditions and testing for electrical and electronic equipment" includes the following 5 parts. - Part 1.General; - Part 2.Electrical loads; - Part 3.Mechanical loads; - Part 4.Climatic loads; - Part 5.Chemical loads. This Part is Part 2 of GB/T 28046. This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 28046.2-2011 "Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2.Electrical loads". Compared with GB/T 28046.2-2011, the main technical changes of this Part are as follows. - ADD 18 V~32 V gear for d.c. power supply voltage range (see Table 2); - Improve compliance criteria requirements for overvoltage test at room temperature of 12 V system (see 4.3.1.2.3); - ADD "All voltage curves are no-load"; ADD "The test harness should be a real vehicle harness or may be determined by negotiation between the supplier and the purchaser" (see 4.1); - ADD "Severity 4"; CHANGE the previous "50 Hz~20 kHz" to "50 Hz~25 kHz"; UPDATE Figure 3 (see 4.4.2); - ADD "or in steps not greater than 25 mV" (see 4.5.2); - Delete "In the supply voltage range of Table 1 or Table 2, the functional status shall be class A" (see 4.5.3 of the 2011 edition); - ADD load dump related content (ADD Figure 8, Figure 9, Table 5, Table 6; CHANGE the previous Table 5 to Table 7 accordingly) (see 4.6.4); - Increase the functional class requirement from C to A (see 4.7.3); - Delete the requirement to cut off the grounding (for safety reasons) (see 4.10.2.1 of the 2011 edition); - Modify Figure 6 and Figure 7 and add a description of physical quantities in the figures; - Modify relevant parameters in Table 3 and Table 4; - ADD Annex A (Informative) Origin of load dump in vehicle electrical systems and Annex B (Normative) Test load dump pulse generator verification. Adjust the previous Annex A to Annex C. This Part uses the redraft law to modify and adopt ISO 16750-2.2012 "Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2.Electrical loads". Compared with ISO 16750-2.2012, this Part is structurally adjusted as follows. - Adjust the numbers of Annex A and Annex B, to meet the requirements of standard writing; - Adjust the suspended paragraph under B.3 to B.3.1 and change the previous B.3.1 to B.3.2. The technical differences between this Part and ISO 16750-2.2012 and their causes are as follows. - As for the normative references, this Part has adjusted the technical differences, to adapt to the technical conditions of China. The adjustments are mainly reflected in Clause 2 “Normative references”. The specific adjustments are as follows. Replace ISO 16750-1 with GB/T 28046.1 which modifies and adopts the international standard; Replace ISO 16750-4.2006 with GB/T 28046.4-2011 which modifies and adopts the international standard; Replace ISO 8820 (all parts) with GB/T 31465 (all parts). The degree of consistency between the parts of the two standards is as follows. GB/T 31465.1-2015 Road vehicles - Fuse-link - Part 1.Definitions and general test requirements (ISO 8820-1.2008, MOD); GB/T 31465.2-2015 Road vehicles - Fuse-link - Part 2.Users guide (ISO 8820-2.2005, MOD); GB/T 31465.3-2015 Road vehicles - Fuse-link - Part 3.Fuse-link with blade type (ISO 8820-3.2010, MOD); GB/T 31465.4-2015 Road vehicles - Fuse-link - Part 4.Fuse-links with female contacts and bolt-in contacts (ISO 8820-4.2010, MOD); GB/T 31465.5-2015 Road vehicles - Fuse-link - Part 5.Fuse-links with axial terminals (strip fuse-links) (ISO 8820-5.2007, MOD); GB/T 31465.6-2017 Road vehicles - Fuse-links - Part 6.Fuse-links with bolt-in contacts with high voltage (ISO 8820-8.2012, MOD); GB/T 31465.7-2017 Road vehicles - Fuse-links - Part 7.Fuse-links with shortened tabs (ISO 8820-9.2014, MOD). - ADD footnotes to Table 4, which is convenient for use and meets the requirements for standard writing (see 4.6.3.2). - In the text of the international standard, Annex A is not mentioned. In order to meet the requirements for standard writing, add "see Annex A for the origin" to 4.6.4.1. - Because this Part does not include electromagnetic compatibility, delete the descriptions of electromagnetic compatibility in the scope and documents (see the international standard Clause 1 and Bibliography). - Delete the unreasonable stipulation in the international standard 4.5.3 that "The functional status inside the supply voltage range (see Table 1 or Table 2) shall be as specified in 4.2.3 (class A)". - In order to improve the operability, add "The test harness should be a real vehicle harness or may be determined by negotiation between the supplier and the purchaser" to 4.1. - ADD a note "For the definition of functional status class in each test requirement, refer to GB/T 28046.1" to 4.1, to avoid repeated references to GB/T 28046.1 in each subclause. - MOVE the formula for calculating internal resistance in 4.6.4.2.2 to 4.6.4.2.1, which is more logical. - With reference to 4.6.4, add the description "(see GB/T 28046.1)" to the UA in 4.8.2. - To avoid misunderstanding, delete "NOTE This is not a test for connectors" in 4.9 of the international standard, because there are many tests that are not suitable for connectors. The following editorial changes have been made in this Part. - For the convenience of viewing the figure, directly convert the numbers in Figure 1 to text and delete the description of the numbers (see 4.4.2); - ADD Annex C (Informative), providing relevant content of UL 94 applicable to vehicles, to facilitate the understanding and implementation of the standard; - Simplify the headers of Tables 5 and 6, to unify the presentation style with other tables. This Part was proposed by Ministry of Industry and Information Technology of the PRC. This Part shall be under the jurisdiction of National Technical Committee of Auto Standardization (SAC/TC 114). The previous editions of the standard replaced by this Part were released as follows. - GB/T 28046.2-2011.1 ScopeThis Part of GB/T 28046 describes the electrical environmental loads of electrical and electronic equipment on the vehicles and specifies the tests and requirements.2 Normative referencesThe following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 28046.1 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 1.General (GB/T 28046.1-2011, ISO 16750-1.2006, MOD) GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 4.Climatic loads (ISO 16750- 4.2006, MOD) GB/T 31465 (all parts) Road vehicles - Fuse-link [ISO 8820 (all parts)]3 Terms and definitionsFor the purposes of this document, the terms and definitions given in GB/T 28046.1 apply.4 Tests and requirementsAll voltages shall be tested on the valid input terminals of the device under test. The voltage curve is formed under no-load conditions. Simulate the condition where the generator regulator fails, so that the output voltage of the generator rises above normal values. ......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 28046.2-2019 be delivered?Answer: The full copy PDF of English version of GB/T 28046.2-2019 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 28046.2-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 28046.2-2019_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 28046.2-2019 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 28046.2-2019?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28046.2-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 28046.2-2019?A step-by-step guide to download PDF of GB/T 28046.2-2019_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 28046.2-2019". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
