日韩欧洲精品无码AV,99国产午夜精品一区二区天美,精品久久免费一区二区三区四区,久久综合图区亚洲综合图区,久久久久亚洲AV免费观看,精子网久久国产精品,亚洲AⅤ无码一区二区二三区性色,亚洲精品国产电影,亚洲资源在线观看,婷婷五月丁香在线

  • 
    
  • <ul id="yy6ca"></ul>
  • <del id="yy6ca"></del>
    <ul id="yy6ca"></ul>
    <strike id="yy6ca"><menu id="yy6ca"></menu></strike>
    Hotline:400-880-1556

    English




    [Change Notice] Notice on the change of the

    Author:中認(rèn)聯(lián)科 time:2020-06-24 Ctr:1220

    Notice on the change of the "Safety Certification Rules for Transformers for Switching Mode Power Supplies" and the implementation of the new standard GB/T19212.17-2019

    Relevant certification companies:

    GB/T19212.17-2019 "Safety of transformers, reactors, power supply units and similar products with a power supply voltage of 1100V and below. Part 17: Special requirements and tests for switching power supply units and transformers for switching power supply units" in 2020 Implemented on May 1, 2014, this standard replaces GB19212.17-2013. GB/T19212.17-2019 implements GB/T19212.1-2016 "Safety of transformers, reactors, power supply units and their combinations Part 1: General requirements and tests" corresponding to the general standard. The following are all referred to as "new standards". The China Quality Certification Center revised the “Safety Certification Rules for Transformers for Switching Mode Power Supplies” according to the above-mentioned standard version changes. The newly issued certification rule number is CQC11-461214-2020, which replaces CQC11-461214-2015. Hereinafter referred to as the "new version of the rules".

    The matters related to the implementation of the certification business are now notified as follows:

    1. From the date of announcement, the switching power supply transformer shall be tested and certified in accordance with the new version of the standards and rules. 2. For products that have obtained the old version of the standard and rules certification, the certificate holder can submit a change application to our center and accept the test for the new and old standard difference test items (see the appendix for specific test items), and the test is qualified The new version of the standard and rules certification will be issued later. The certificate conversion work should be completed by April 30, 2021. Certificates that have not completed the conversion after the deadline will be suspended for 3 months. If it is not completed beyond the suspension deadline, the certificate will be revoked. 3. The follow-up inspection after certification is carried out according to the standards and rules listed in the valid certificate.

    annex:

    19212.1 New and old standard differences and supplementary tests.doc

    19212.17 Difference between new and old standards and supplementary test.doc

    Please click "https://www.cqc.com.cn/www/chinese/c/2020-05-26/556365.shtml" below to download the attachment

    China Quality Certification Center


    Related Articles
    • How do smart desk lamps pass CE certification? ZRLK is your escort

    • Sodium battery UN38.3 certification: a key link to ensure product safety and compliance

    • CCC certification points of large capacity charging box: battery, headphones can not be less

    • CCC certification of the earphone charging case: The rated capacity of the battery cell is less than 600mAh.

    Follow Us
    欧美第一精品| 欧美丰满少妇xxxx性| 国产一精品一av一免费| 夜夜高潮夜夜爽夜夜爱爱一区| 亚洲精品国产精品乱码不卡 | 欧美午夜特黄aaaaaa片| 日韩精品无码一区二区三区不卡| 人妻内射一区二区在线视频 | 人人超碰人人爱超碰国产| 免费人成视频在线视频电影| 婷婷四房综合激情五月在线| 四虎影视在线影院在线观看| 欧美不卡视频一区发布| 亚洲成av人片天堂网无码】 | 亚洲日本在线电影| 久久久久久亚洲综合影院| 日本美女比基尼| 久久国产综合精品swag蓝导航| 大地资源网高清视频怎么在线| 国产精品熟女一区二区| 国产精品免费视频网站| 国产精品刮毛| 青草视频在线观看视频| japanese老熟妇乱子伦视频| 国产三级精品三级| 高潮毛片无遮挡高清免费视频| 人人妻人人做人人爽| 人妻少妇看a偷人无码| 亚洲av综合a色av中文| 欧美激情一区二区三区在线 | 国农村精品国产自线拍| 亚洲日韩一区精品射精| 久久av无码专区亚洲av桃花岛| 亚洲乱码日产精品bd| 中文字幕在线无码一区二区三区| 国产日韩精品一区二区三区在线| 成人在线视频国产| 国产黄a三级三级三级| 亚洲国产成人久久无码| 碰碰免费视频| 亚洲.国产.欧美一区二区三区|