第一部分：插头，插座及连接器基础知识??基本符号及含义A——安培（ampere）V——伏特 (volt)~ ——交流电（alternating current）———直流电（direct current）L ——火线（line contact））earthing contact）IEC规定标识顺序为：先额定电流，后额定电压，再电源，额定电流和额定电压之间可用斜线或水平线分开。
For the marking with rated current and rated voltage the figures may be used alone. These figures shall be placed on one line separated by an oblique line or the figure for rated current shall be placed above the figure for rated voltage, separated by a horizontal line.The marking for the nature of supply shall be placed next to the marking for rated current and rated voltage.Note: The marking for current, voltage and nature of supply may be, for example, as follows (以下为IEC的规定标识例子)：16A 440V~ or 16/440~ or~第二部分：插头（Plug）主要内容：插头的种类1．按接线极来区分：a．两极插头● 无接地触头的可逆式两极插头，一般有两种，一种Pin脚为矩形，另一Pin为圆形，如下图所示：●无接地触头的不可逆式两极插头，一般有以下四种，如下图所示：● 带接地的两极插头，一般有以下几种 b．三极插头● 三极不带地线插头● 三极带地线插头圆Pin脚为地线Pin.● 三极带零线插头上方的Pin脚为零线Pin.2．按额定电流和额电电压来分类：● 15A 125V插头● 16A 250V 插头● 60A 250V 插头● 15A 220V 插头因各国使用电压不同，按此方式来分类的插头种类繁多。
第三部分：Connector?? 概述1．Connector是随计算机和集成电路的发展而产生并被广泛运用，相对于插头来说，Connector为一新生事物，因而有国际通用的标准，无地域差异。
2．此文是以IEC60320为依据，IEC60320是一本两极带地线或不带地线的通用Connector国际标准。
3．IEC60320的有关Connector规定介绍。
● This part of IEC60320 is applicable to two—pole applicable couplersfor a.c. only, with or without earthing contact, with a rated voltage notexceeding 250V and a rated current not exceeding 16A, for householdand similar general purposes and intended for the connection of asupply cord to electrical appliances or other equipment for 50Hz or 60Hz supply. IEC60320是一本两极带地线或不带地线的用于交流回路的Connector国际标准，此Connector适用最大额定交流电压为250V，最大额定交流电流为16A，是一种通用的，作为50Hz或60Hz电源和电器及电气设备之间的连接。
● Standard ratings：The standard rated voltage is 250V, the standard ratedcurrents are 0,2A, 2,5A, 6A, 10A, and 16A. 额定电压为250V, 额定交流电流为0,2A, 2,5A, 6A, 10A, 16A.0,2A 250V appliance coupler for classⅡequipment and cold condition． 2,5A 250V appliance coupler for classⅠequipment and cold condition.2,5A 250V appliance coupler for classⅡequipment and cold condition.6A 250V appliance coupler for classⅡequipment and cold condition.10A 250V appliance coupler for classⅠequipment and cold condition.10A 250V appliance coupler for classⅠequipment and hot condition.10A 250V appliance coupler for classⅠequipment and very hot condition.10A 250V appliance coupler for classⅡequipment and cold condition.16A 250V appliance coupler for classⅠequipment and cold condition.16A 250V appliance coupler for classⅠequipment and very hot condition.16A 250V appliance coupler for classⅡequipment and cold condition.● Marking： Connectors shall be marked with: rated current in amperes, except for 0,2A Connectors; rated voltage in volts; symbol for nature of supply; name, trademark or identification mark of the maker or responsible vendor; type reference. Connector需标明额定电流（除0,2A）；额定电压；电源；生产商或销售商的商标；型号。
● Classification (分类)：1.According to maximum pin temperature at the base of the pins ofthe corresponding appliance inlet, 根据器具的Pin脚的温度：a)appliance couplers for cold conditions (pin temperature notexceeding 70℃)b)appliance couplers for hot conditions (pin temperature notexceeding 120℃)c)appliance couplers for very hot conditions (pin temperature notexceeding 155℃)2.According to the type of equipment to be connected, 根据与其相连的器具来分：a)appliance couplers for class I equipmentb)appliance couplers for class II equipment3. According to the method of connecting the cord, 根据连接线：a) rewirable connectors可重接线的Connector(装配式).b) non-rewirable connectors不可重接线的Connector.?? 常见的connector1.可逆式connectorStandard Sheet C7 Standard Sheet C232.不可逆式connector3. 带地线的connector上方接线Pin 为地线Pin为零线Pin (W or N), 右下方接线PinNote: 接合面—插头插入插座的平面。
第四部分：美国和加拿大插头接线方式左方Pin脚为零线（W，N）Pin。
2．带接地的两极插头接线方式Pin 为地线Pin 为零线Pin( W or N), 右下方接线Pin 为火线Pin( L )。
Note ：1. 接合面 — 插头插入插座的平面。
2．对于三极插头具体接线比较复杂，遇到客户需要三极插时，请查美国和加拿大插头标准或IEC60083标准。
第五部分：英国两极带地线插头接线方式英国两极带地线插头一般有以下两种外型：上方接线Pin地线Pin（E orPin为火线Pin（L），右下方接线Pin为零Note: 1. 接合面—插头插入插座的平面。
2. 其它英国插头还需查资料后才能确定其接线方式。
Remark: 1. 以上所有资料依据IEC60320,IEC60083及《世界各国插头标准》编写。
2．其它国家暂无可靠资料，一旦有资料会及时补充和更新。
3. 各类插头标准资料现在保存在认证组，如需要可到认证组借阅。