DSH 729/737(IEC 60065/60950-1)覆盖散热片的外壳温升/器具插座温升

2021-10-03 10:22:21

DSH 729

Subject: Temperature limit of main enclosure over heat sink


Question:

Can the 65 ° K temperature rise limit be applied for the surface of the main enclosure covering an internal heat sink in the same way as is applied for vacuum tubes following DSH-566?

Decision:

The 65 ° K rise limit may be applied to the enclosure covering an internal heatsink, if:

• the symbol (IEC60417, 5041) is marked on or adjacent to the heated area of the surface of the enclosure, and

• the minimum distance over the surface of the product between this area and any control intended to be operated during use is 150 mm or greater, and

• the instruction manual gives information regarding it.


问题:

覆盖内部散热器的外壳表面温升是否可以像DSH 566号决议的真空管一样使用65K限制?

决定:

65K限制适用于覆盖内部散热器的外壳,前提是:

1、在外壳表面受热区域或其附近有标记符号(IEC60417, 5041)

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2、在使用过程中,该区域与产品任意操作面的最小距离为150毫米或更大

3、说明书中提供了相关说明


DSH 566(IEC 60065)真空管的温升限值


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DSH 737

Subject: Application of IEC 60320-1 type appliance inlet


Question:

Does DSH-548 apply to end products only, or to other equipment, such as built-in power supplies, where the appliance inlet is likely to serve as (PLUGGABLE EQUIPMENT TYPE A) means for connection to the AC MAINS SUPPLY?

Decision:

DSH-548 applies to all PLUGGABLE EQUIPMENT TYPE A where the appliance inlet is used as means for connection to an AC MAINS SUPPLY.


问题:

DSH 548号决议是仅适用于终端产品,还是适用于其他设备,如内置电源,其中器具输入插座可能作为(A型可插式设备)连接到交流电网电源的方式?

决定:

DSH 548号决议适用于所有A型可插式设备,其中器具输入插座用于连接到交流电网电源。


DSH 548(IEC 60950-1)器具插座温升


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