安规网

 找回密码
 注册安规
安规论坛 | 仪器设备 | 求职招聘 | 国家标准 公告 | 教程 | 家电 | 灯具 | 环保 | ITAV 签到 充值 在线 打卡 设备 好友| 帖子| 空间| 日志| 相册
IP淋雨机 | 证书查询 | 规范下载 | 资质查询 招聘 | 考试 | 线缆 | 玩具 | 标准 | 综 合 红包 邮箱 打卡 工资 禁言 分享| 记录| 道具| 勋章| 任务
IP淋雨设备| 恒温恒湿箱| 拉力机| 医疗检测设备沙特Saber 埃及COI 中东GCC|CoC直接发证机构水平垂直燃烧机|灼热丝|针焰试验机|漏电起痕试验机
灯头量规|试验指|插头插座量规|灯具检测设备耐划痕试验机|可程式恒温恒湿试验箱 | 耦合器设备广东安规-原厂生产-满足标准-审核无忧
查看: 780|回复: 1

[CAP] DSH 1048

[复制链接]
发表于 2017-1-7 11:19 | 显示全部楼层 |阅读模式
广东安规检测
有限公司提供:
Question
; w; c9 Z. J& W$ FThe first sentence of clause 3.4.3.1 of IEC 60384-14 states: ”Capacitors of each technology, rated; m, g" e8 o1 i1 b5 d
voltage, class and sub-class shall be separately qualified”.; O- a% X: P  n% r2 j
If it is requested to qualify a dual-class X/Y capacitor (e.g. X1:400 V, Y2:250V), is it permissible to- P$ `% j7 Z2 O* b( w
perform one type test only by applying for each individual test the highest test severity?2 k/ X" c: M9 t1 N- F
To qualify a dual-class X/Y capacitor, testing laboratories may have different interpretations of this
+ l; }, C4 d" V  C4 y7 z( r' }sentence.
( K/ ~5 V1 _& U/ z: C5 i2 IInterpretation a): Some testing laboratories test the same capacitor series once for X1 and once for& t4 S- n2 e6 V. x9 X/ @5 H  V' S
Y2 at the same time in separate type tests.
( S) ~& S! W! N0 ~. a% bInterpretation b): Other testing laboratories follow the opinion that the safety of the capacitors is also9 {$ F& d9 o2 M! X4 o: G
assured if a mixture of highest testing (peak) voltages of both sub-classes is used. This means worst
; J! a( f1 V6 d% |, Rcase testing, covering both sub-classes for certification.6 A4 }6 L' ^% Y( L
Both interpretations may possibly lead to the result of compliance or non-compliance of the capacitor,
: T1 [& P& D. Q' q0 Xas in a) more samples are tested and in b) a single capacitor is more stressed.
! w! Q! q: w' q' DFrom the technical point of view, it should be acceptable to perform one type test only by applying the
7 Y9 k: Q# Q( n. `2 W8 b! Ehighest test severity for each test.' s2 k& n1 T  }+ B( T
Decision1 e; B+ x+ ~6 o& b: L2 ~
When a range of dual-class capacitors (X/Y) is qualified, it is allowed to perform one type test only, if
$ T9 O+ l- ]% z+ |* {* r( [the highest severity of the X or Y class is applied in each respective test." p. u- B. C) C- g6 `5 K7 V/ u' Q( M9 `
; f/ ?1 e6 Q% L# e$ C2 y
 楼主| 发表于 2017-1-7 11:20 | 显示全部楼层
DSH 1048附件

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有账号?注册安规

x
回复 支持 反对

使用道具 举报

您需要登录后才可以回帖 登录 | 注册安规

本版积分规则

关闭

安规网为您推荐上一条 /2 下一条

QQ|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网 ( 粤ICP13023453-10 )

GMT+8, 2024-12-18 21:14 , Processed in 0.078275 second(s), 22 queries .

Powered by Discuz! X3.4

© 2001-2023 Discuz! Team.

快速回复 返回顶部 返回列表