共查询到19条相似文献,搜索用时 140 毫秒
1.
2.
通过比较新旧版本间家用和类似用途插头插座尺寸检查用量规的变化,阐述了量规的型式、基本参数和尺寸的差异,分析了产生这种变化的原因以及因此而带来的影响,使生产单位和检测机构对自己拥有的设备作出相应的调整。对插头插座产品尺寸检查的严格要求有利于控制因用电不安全产生的灾害。 相似文献
3.
4.
5.
6.
插头插座是电力系统常用的电器附件。在我国GB11918~11919—2001“工业用插头插座和耦合器”标准中,把其分为插头、插座、器具输入插座和连接器4种。它们配对可组成:插头和插座、电缆耦合器(插头与连接器)、器具耦合器(连接器与器具输入插座)。 相似文献
7.
8.
9.
10.
单相插头插座是供可移式单相电气器具与电源连接的必不可少的配件之一。随着家用电器种类的增加和普及,单相插头插座的使用日多。插头插座的质量和安装使用是否正确与家庭安全用电有很密切的关系。当前,我国所使用的家用电器的插头,绝大部分是单相二极扁形或圆形插头(图1)。为了保证有金属外壳的家用电器的使用安全,解放以来曾先后推行过两种单相三极插头插座(图2、图3),1981年又发布了单相插头插座的国家标准。但由于各种原因,至今没有能 相似文献
11.
12.
提出一种家用和类似用途插座的耐久性测试系统.系统采用步进电机执行器取代气动杆执行器,三维装夹数控定位替代二维装夹人工定位,实施改进“电梯速度”曲线的模拟量控制测试行程速度策略.试验证明,系统具有运维成本低、测试精度高、一致性好、操作简便、运行可靠等优点. 相似文献
13.
14.
Many variants are known of expulsion-type semiconductor plugs for capacitive ignition systems for gas-turbine engines, which differ in the design of discharge chambers. A distinctive feature of serial-produced expulsion-type plugs, which are manufactured by domestic industry, is the relative arrangement of semiconductor element and side electrode, at which the working surface of semiconductor is located not along the plug axis, but at an angle. The working surface of the side electrode is near the discharge-chamber base. There is no systematized information on research on discharge processes in the expulsion-type plugs in the technical literature. This work is dedicated to the study of interrelation between the energy parameters of spark discharges, space–time characteristics of plasma ejection from the discharge chambers of plugs, and plug-ignition effectiveness. The oscillography, together with plasma-ejection high-speed photographing methods, are used as research techniques. A serial-produced semiconductor plug and a specially developed model of expulsion-type plug with a window made of organic glass were chosen as the objects of research. The organic-glass window made it possible to photograph the process of plasma-discharge development within the discharge chamber. The oscillograms of discharge current and voltage drops in the plugs were recorded with a two-beam oscilloscope using a noninductive coaxial shunt and a resistive voltage divider. The parameters of plasma ejection were correlated with the plug-ignition effectiveness. The obtained results complement the general understandings of the regularities of development of plasma ejection from the discharge chambers of semiconductor plugs and confirm that the discharge parameters have an effect on the initial ignition speed from the standpoint of thermal and chain igniting mechanisms. 相似文献
15.
16.
17.
18.
19.
对17K1-E和YOT51型液力偶合器在实际运行过程中经常出现的勺管卡涩、易熔塞熔化、轴承烧损、工作油压消失以及偶合器振动等故障进行了原因分析,并提出改进措施。 相似文献