IEC60068-2-75電工電子產品環境試驗:錘擊試驗

中 華 人 民 共 和 國 國 家 標 準
GB/T 2423.55-2006八EC 60068-2-75:1997
        電工電子產品環境試驗
第2部分:試驗方法 試驗Eh:錘擊試驗
Environmental testing for electric and electronic products-Part 2: Test
                      methods- Test Eh:Hammer tests
<IEC 60068-2-75:1997, Environmental testing-
Part 2: Tests-Test Eh: Hammer tests, IDT）
2006-02-15發布 2006-06-01實施

前言 ····························，··················································································…… 皿
引言 ··················································································································…… IV
1 范 圍 ···············································································，·······························…… 1
2 規范性引用文件 ···········································································，，·····...……，，...…… 1
3 錘擊試驗方法通則 ·································································，···············..……，… … 1
3. 1 術語和定義 ······················································，·················，········，·················…… 1
3.2 嚴酷度 ···········································································································一 1
3.3 試驗裝置 ·······································································，·················，············…… 2
3. 4 預處理 ···········································，····························································…… 3
3. 5 初始檢測 ··················································，·····················，···········，·················…… 3
3. 6 試驗 ·，·····，······，·····，·····，················································································…… 3
3. 7 恢復 ········································，···································································…… 3
3.8 zui終檢測 ·····································································································…… 3
3.9 有關規范應提供的信息 ···························································......……，............…… 3
4 試驗Eha:擺錘··········································································，······················…… 4
4.1 定義 ···········································································································…… 4
4. 2 試驗裝置 ····································································································…… 4
4. 3 跌落高度 ························································································，············…… 4
4.4 試驗 ·，··········································································································…… 5
5 試驗Ehb:彈簧錘······························································.·······················......…… 5
5. 1 試驗裝置 ···························································，·······，··································…… 5
5. 2 重力的影響 ·················································，···············································…… 6
5. 3 校準 ········································································································…… 6
6 試驗Ehc:垂直落錘 ···············································································，·······......…… 6
6. 1 定義 ············································································································…… 6
6. 2 試驗裝置 ·····················································································，············…… 6
6.3 跌落高度 ········································································································… 6
附錄A（規范性附錄） 撞擊元件的形狀 ·····································································…… 7
附錄B（規范性附錄） 彈簧錘的校準···········································································…… 9
B. 1 校準原理 ··········································，················································..·.·······…… 9
B. 2 校準裝置的結構 ···········································，································.................…… 9
B. 3 校準裝置的校準方法 ·····································································，·……，.，，.....……，9
B. 4 校準裝置的使用 ·······························，·······································……，.，......····…… 10
附錄C（資料性附錄） 導則 ································································...............……，....14
C. 1 撞擊試驗適用范圍 ···············································...................................……，.… 14
C. 2 試驗裝置的選擇 ····················································································......…… 14
C. 3 嚴酷度的選擇 ·····································································，··.....……，.……，·..·… 14
C. 4 試驗的有關資料 ··································································，··················..·..…… 14

GB/T 2423.55-2006/IEC 60068-2-75:1997
附錄 D（資料性附錄） 擺錘試驗裝置示例 ······，，···，··········，····，·················，···········，，·····…… 15
附錄 E（資料性附錄） 彈簧錘試驗裝置 ···，·。··。············· ·······，···，，1··········，·，，，4···‘一 18
圖1撞擊元件的典型示意圖···················，································································……2
圖2 測量點 ··········，······················‘··，，·····，····················，········，······························…… 5
圖3 2）的釋放端形狀 ·············································................................................5
圖A. I不超過IJ的撞擊元件的示例···············，·····，···············，···········、·············，，··…‘’·“‘’7
圖A.2  2）的撞擊元件的示例 ·····，·· ，，，·、·······，，，···········11·，，·，··。····，，，··】·····，，····、…7
圖A.3  5）的撞擊元件的示例 ············，······················。············，································一 7
圖A. 4 10）的撞擊元件的示例 ，······································，·················，·········，·······……8
圖A.5  20）的撞擊元件的示例 ·，·······，，，·······4·····，·，···············，，，，，，·············，，·.... ----.... 8
圖A.6 50J的撞擊元件的示例 ·····························，，，···········，·····，···························……8
圖B. 1 校準裝置 ····························，，·········，·····················，·······················，·······…… 10
圖 B. 2 擺“c’’ ···············································，······················，，·······」····················…… 11
圖B. 3 擺“c’’的鋼彈簧 ········1········，，·‘··············，········11········，·······1············，·······…… 11
圖B. 4 校準裝置的局部 ，.............................········，·，·，··· ·，···，······‘·······，·······…… 12
圖B. 5校準裝置的校準示意 ·‘··············，····················，···········································一 13
圖B. 6 分度盤“f······，，········‘·············，，······‘·，·········，···········，，·····························…… 13
圖 D. 1 擺錘試驗裝置 ，，·，···】」············，·······························，········」」····················…… 15
圖D. 2 能量小于 1J的擺錘的撞擊元件 ，，·················，·，···············，，，，···············，····，····…… 16
圖D. 3 樣品安裝座 ······，···，············，，····················，，··，·······，，，，，··，···············，，········一 16
圖D. 4 嵌人式開關的轉換安裝 ···········，·································‘······························……17
圖D. 5 燈座的轉換安裝 ·····················，·········，······，··············，····················，······‘…… 17
圖 E. 1 彈簧錘試驗裝置 ，···114···1····，，····11·····，，，，，···· ·······，，····· ···，·····，，，，，。 … 18
心
‘
表 1 撞擊元件特性 ·……
S
表 2 跌落高度 ·······……
                   ， A
上
︸
表 C. 1 能量級 J
， 只
占 ︺
表 E.1 撞擊元件的動能

GB/T 2423.55-2006/IEC 60068-2-75:1997
"li 呂
    GB/T 2423《電工電子產品環境試驗 第 2部分 試驗方法》按試驗方法分為若干部分。
    本部分為 GB/T 2423的第 55部分。
    本部分等同采用 IEC 60068-2-75:1997《環境試驗 第 2部分:試驗方法 試驗 Eh:錘擊試驗））（英
文版）。
    本部分是*版（（IEC 60068-2-75是*版）
    本部分等同采用的IEC 60068-2-75由IEC導則 104確定為安全性基礎標準
    本部分等同采用的IEC 60068-2-75由IEC導則 108確定作為基本環境試驗標準發布。
    為便于使用，本部分做了下列編輯性修改:
    a）   "IEC 60068的本部分”一詞改為“GB/T 2423的本部分”或“本部分，’;
    b） 用小數點“.”代替作為小數點的逗號“，”;
    C） 刪除標準的前言;
    d） 為了與現有 GB/T 2423其他各部分的名稱一致而將本部分改為當前名稱;
    e） 本部分在國標轉化過程中與 IEC 60068-2-75*版的出版有 5年的滯后。失去了5年的過渡
        期。為了便于使用時掌握，在“IEC 60068-2-75:1997*版1997年 8月出版的5年后將帶括
        號的量值刪除”語句中增加了版本號和出版日期，并保持與原文一致。
    本部分引用的規范性文件中有一部分目前尚未轉化為等同采用的國家標準，在引用這些規范性文
件時仍以 IEC/ISO的編號列出。
    本部分附錄 A和附錄 B為規范性附錄;附錄 C、附錄 D和附錄E為資料性附錄
    本部分由信息產業部電子第五研究所提出。
    本部分由中國電工電子產品環境條件與環境試驗標準化技術委員會歸口。
    本部分起草單位:信息產業部電子第五研究所、上海市電子儀表標準計量測試所。
    本部分主要起草人:盧兆明、紀春陽、龔彩萍、王學智、王忠。

GB/T 2423.55-2006/IEC 60068-2-75:1997
電工電子產品環境試驗
第 Z部分:試驗方法 試驗 Eh:錘擊試驗
范 圍
    GB/T 2423的本部分提供了對樣品進行包括撞擊的次數、能量和實施方向等規定的嚴酷度條件下
實施撞擊的三種等效的試驗方法。適用于按電氣安全性條款評定產品的堅固程度
    本部分適用于從 。.14焦耳（J）至 50焦耳（J）能量級
    本部分給出了適用于試驗的三種裝置。附錄 C提供了這方面的指南。
2 規范性引用文件
    下列文件中的條款通過本部分的引用而成為本部分的條款。凡是注日期的引用文件，其隨后所有
的修改單（不包括勘誤的內容）或修訂版均不適用于本部分，然而，鼓勵根據本部分達成協議的各方研究
是否可使用這些文件的版本。凡是不注日期的引用文件，其版本適用于本部分。
    GB/T 2421-1999 電工電子產品環境試驗 第 1部分:總則（idt IEC 60068-1:1988）
    GB/T 4796-2001 電T電子產品環境參數分類及其嚴酷程度分級 （idt IEC 60721-1;1990,
Amendment 1:1992 ）
    ISO 1052:1982 一般工程用鋼
    ISO 2039-2:1987 塑料洛氏硬度試驗方法
    ISO 2041:1990 機械振動和沖擊 術語
    ISO 2768-1:1989 一般公差 線性尺寸的未注公差
    ISO 6508-1986   6}-W # 1;1 砰彥試賒一洛 氏試盼 （A一H一〔、一仆 E一F一幾一H一K                                           kJ3）
錘擊試驗方法通則
3. 1 術語和定義
    GB/T 2423的本部分采用 ISO 2041:1990或 GB/T 2421-1999規定的術語和定義。下列附加的
術語和定義僅適用于本部分。第 4章和第 6章的試驗的術語將在對應的章里給出。
3.1.1
    固定點 fixing point
    樣品固定時，夾具與樣品的接觸點。
3. 1.2
    等效質f  equivalment mass
    試驗裝置的撞擊元件以及共有速度提供撞擊能量的有關部分的質量。
    注:擺錘裝置的特殊情況，見4. 1. 30
32 嚴酷度
3.2. 1 概述
    在 3. 2.2給出了供選擇的撞擊能量，撞擊次數見 3. 2. 3,
3.2.2 撞擊能f
    有關規范應確定下列能量值之一作為撞擊能量。