1.范围IEC 79的本部分规定了额定电压不超过11 kV且保护封装类型为“m”的电气设备、电气设备部件和防爆部件的构造和测试的具体要求。这些具体要求补充了IEC 79-0“一般要求”，但以下情况除外。IEC 79-0中不适用的条款:4.2最高表面温度（适用于Ex组件）；5.2打开外壳前的时间延迟；6.2塑料外壳上的螺纹孔；8个紧固件；9联锁装置；15个电缆和导管入口；17开关柜；18根保险丝；20.2灯具的警告标签； 22.4.3.1耐冲击性试验（对于Ex部件）；22.4.4外壳防护等级试验；22.4.8爆炸性混合物中的试验；22.4.9电缆入口非铠装电缆夹紧试验；铠装电缆入口的夹紧试验。

1. ScopeThis part of IEC 79 prescribes the specific requirements for construction and testing of electrical apparatus, parts of electrical apparatus and Ex components which have rated voltages not exceeding 11 kV with the type of protection encapsulation ""m"".These specific requirements supplement IEC 79-0 ""General Requirements"" with the following exceptions.Clauses of IEC 79-0 which are not applicable:4.2 Maximum surface temperature (for Ex components); 5.2 Time delay before opening an enclosure; 6.2 Threaded holes in enclosures of plastic material; 8 Fasteners; 9 Interlocking devices; 15 Cable and conduit entries; 17 Switchgear; 18 Fuses; 20.2 Warning label for luminaires; 22.4.3.1 Test for resistance to impact (for Ex components); 22.4.4 Test for degree of protection for enclosures; 22.4.8 Test in explosive mixtures; 22.4.9 Test of clamping of non-armoured cables in cable entries; 22.4.10 Test of clamping of armoured cables in cable entries.