DSH 632（IEC 60065）帶熔斷器的插座的可觸及性/DSH 759（IEC 60950-1）光耦內(nèi)部電氣間隙與海拔高度

2021-10-19 08:27:19

DSH 632

Subject: Access to live parts on fuse holder

Background:

The combined appliance inlet / fuse-holder / voltage selector illustrated on page 2 has certification to IEC 60320 and is being used in audio equipment in the scope of IEC 60065. As can be seen from the, photographs, the fuse carrier cannot be removed before first pulling out the appliance coupler.However, when the fuse carrier is removed there is direct access to the live fuse clip using the standard finger.

Question:

Question 1- Should the tests for access to live parts be conducted assuming that the appliance coupler could subsequently be re-inserted?(c/f "Inadvertent reactivation" of safety interlock -clause 14.7)

Question 2- If the answer to question 1 is "yes", how do we determine whether or not the fuse carrier can be removed BY HAND?

Decision:

The answer to Question 1 is "yes".

The answer to Question 2:Use the following tests as appropriate:

a) 20N for 10s as per clause 9.1.7 b) using the test hook

b) 50N for 10s as per clause 8.14

背景：

有一種組合型器具插座（輸入插座、熔斷器座、電壓選擇器一體式）通過IEC 60320認(rèn)證，用于IEC 60065范圍內(nèi)的音頻設(shè)備。當(dāng)器具插座沒有被移出設(shè)備時，熔斷器是無法拆除的，但是如果移出熔斷器后，試驗指可以觸碰到帶電部件

問題一：

進行可觸及帶電零部件考核時，是否考慮器具插座會被重新插入設(shè)備？（關(guān)聯(lián)安全聯(lián)鎖裝置的意外復(fù)位）

問題二：

如果問題一的解答是需要考慮，那么該怎么考核熔斷器會被手動移除？

決定一：考慮

決定二：

酌情適用以下條款：

a）施加9.1.7 b）試驗鉤20N-10s

b）施加8.14 50N-10s

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DSH 759

Subject:

Internal clearances of optocouplers when used in high altitudes

Question:

Is it necessary to apply altitude correction to internal clearances of optocouplers?

Decision:

IEC 60950-1:2005: Only optocouplers that comply with 2.10.5.5 c) are internally not affected by altitude.

IEC 60950-1:2001: Only optocouplers that comply with subclause 2.10.8 are internally not affected by altitude.

問題：

是否需要對光耦內(nèi)部電氣間隙要求進行海拔高度修正？

決定：

IEC 60950-1:2005: 僅當(dāng)符合2.10.5.5 c）條款的光耦內(nèi)部電氣間隙要求不受海拔影響。

IEC 60950-1:2001: 僅當(dāng)符合2.10.8條款的光耦內(nèi)部電氣間隙要求不受海拔影響。

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