一些电容表面、形状等看起来差不多，但其本质是完全不同的。就拿安规电容和普通电容举例说明，安规电容与普通电容有什么区别。

　　The surface and shape of some capacitors look similar, but their essence is completely different. Take the safety capacitance and ordinary capacitance as examples to illustrate the difference between safety capacitance and ordinary capacitance.

　　1.应用范围不同

　　Different applications

　　安规电容主要为为X电容和Y电容。

　　The safety capacitance is mainly x capacitance and Y capacitance.

　　X电容为抑制差模干扰，一般跨接与L与N之间（N代表零线，L代表火线），常见的是X1电容和X2电容。每个等级的耐压不同。失效时不会对人体产生危害。

　　In order to suppress the differential mode interference, X capacitor is usually bridged between L and n (n represents the zero line, l represents the live wire), and the common ones are X1 capacitor and X2 capacitor. The withstand voltage of each grade is different. Failure will not cause harm to human body.

　　安规Y电容又分为Y1电容和Y2电容，为抑制共模干扰，Y电容是安规系列的电容，在火线和地线之间以及零线和地线之间并接的电容统称Y电容。一般会有漏电流。

　　Safety y-capacitor is divided into Y1 capacitor and Y2 capacitor. In order to suppress common mode interference, y-capacitor is the capacitance of safety regulation series. The capacitance connected in parallel between live wire and ground wire and between neutral line and ground wire is collectively referred to as y capacitance. There will be leakage current.

　　安规电容主要适用于电源供电的电子仪器和电子设备，应用于开关、触点等产生火花放电的部位，能够起吸收脉冲干扰和减少电磁骚扰的作用。

　　Safety capacitor is mainly used for power supply of electronic instruments and electronic equipment, applied to switches, contacts and other parts of spark discharge, can absorb pulse interference and reduce electromagnetic interference.

　　普通电容器广泛应用于各类电子设备、微分电机、电动工具、照明灯具、空调器、电冰箱、洗衣机等家用电器以及电力系统中。

　　Ordinary capacitors are widely used in all kinds of electronic equipment, differential motors, power tools, lighting lamps, air conditioners, refrigerators, washing machines and other household appliances and power systems.

　　2.外观不同。

　　Different appearance.

　　像X类安规电容，一般都安装在塑胶外壳内，普通的CBB电容，多数都是环氧树脂包封。

　　For example, class X safety capacitors are generally installed in plastic cases. For ordinary CBB capacitors, most of them are encapsulated in epoxy resin.

　　3.认证不同。

　　Certification is different.

　　普通的CBB类电容，它不需要过任何认证，但安规电容一般要过很多认证，比如CQC、VDE、 UL、CUL等，而且过的认证越多越好。

　　Ordinary CBB capacitors do not need any certification, but safety capacitors generally have to pass a lot of certification, such as CQC, VDE, UL, cul, etc., and the more certification, the better.

　　4.价格不同。

　　Different prices.

　　同容量、同电压，安规电容相对要贵一些，因为这些电容每年要花大量的认证费用，而且制作工艺也不同。

　　With the same capacity and voltage, safety capacitors are relatively expensive, because these capacitors have to spend a lot of certification fees every year, and the manufacturing process is also different.

　　所以说，不同型号的电容有着不同的功能，只要我们根据使用需求选择适合的电容即可。

　　Therefore, different types of capacitors have different functions, as long as we choose the appropriate capacitor according to the use needs.