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本标准规定了瓦斯环境用矿灯的产品分类、要求、试验方法、检验规则和标志等。本标准适用于煤矿瓦斯环境(Ⅰ类)用矿灯,包括与其他设备连接和为其他设备供电的矿灯。
本标准规定了安全防范系统中供电的技术要求,是安全防范系统供电的系统设计、设备选型、安装施工、检测和验收的基本依据。本标准适用于安全防范(以下简称安防)系统供电设计、安装施工、检测与验收。
GB/T 32580的本部分适用于室内或室外固定安装,运行频率50 Hz,且标称电压为25 kV、2×25 kV和50 kV电气化铁路用单相交流断路器。本部分适用的双极断路器的连接方式限定于:一极连接线路上的接触线,另一极连接正馈线,正馈线沿同一轨道架设,并通过按一定距离连接自耦变压器用以提高线路电压。整个回路的中性点直接接地。本部分也适用于断路器的操动机构及其辅助设备。仅依靠人力操动合闸机构的断路器不在本部分范围内。
本标准规定了教育机器人的基本安全要求、保护措施以及使用信息的要求和准则。本标准适用于教育机器人。如果一个机器人由未成年人来组装,本标准适用于可接触的每个零件和组装的机器人;如果一个机器人由成人(年满18周岁)组装或者在出厂时已经组装好,本标准适用于组装的机器人。
本规范适用于新建、改建和扩建的通信局(站)防雷与接地工程的设计。
本指导性技术文件描述低压交流电源(≤100OV)中的浪涌电压、浪涌电流环境,不包括其他的电能质量问题,如电压跌落、电噪声等。标准中所考虑的浪涌持续时间不超过半个工频周期,这些浪涌可以是周期性的,也可以是随机事件,可以出现在火线、零线以及地线之间。一般通过浪涌保护器(SPD)限制电压和电流的幅值来分流危险的浪涌能量,对于只会对设备造成干扰的浪涌一般采用其他方法消除。
本标准规定了航天器太阳电池阵-蓄电池组电源系统的设计依据、设计原则、设计内容、设计程序、设计方法和设计验证试验项目。本标准适用于航天器太阳电池阵-蓄电池组电源系统(以下简称电源系统)的设计,其他种类电源系统的设计可参照使用。
本标准规定了通信安装中缓解电磁故障的通用准则,并给出案例分析提出了几种解决EMC故障的方法,包括如何定位主要噪声源和缓解的工具装置。本标准适用于通讯安装中的电磁故障。
For the interrelationships of this Recommendation with other ITU-T G.99x-series Recommendations, see [b-ITU-T G.995.1]. This Recommendation describes the interface between the telecommunication network and the customer installation in terms of their interaction and electrical characteristics. The requirements of this Recommendation apply to a single asymmetric digital subscriber line (ADSL).
The purpose of this Recommendation is to provide performance requirements for PTC thermistors to ensure their satisfactory operation in telecommunication networks. This Recommendation also covers coordination of these devices fitted in the MDF and the equ
Expected surges on telecommunications and signalling networks due to lightning Study Group 5
1.1 These requirements cover manual signaling boxes for fire alarm systems intended for permanentinstallation and used in ordinary locations in accordance with the National Electrical Code, NFPA 70, and the National Fire Alarm Code, NFPA 72.1.2 A manual signaling box is an assembly of a mechanism having electrical contacts designed totransmit a signal when an integral part is operated manually. The signaling contacts are intended to beconnected to circuits of fire alarm systems. The types of boxes covered by these requirements are coded boxes and non-coded boxes, including signaling boxes, fire and guard’s tour reporting stations, and guard’s tour reporting stations for suppressed-signal tour combinations.1.3 A manual signaling box having a pre-wound signaling mechanism and equipped with a trippingelectromagnet to permit automatic actuation by separate detectors, and similar combination devices, shall be evaluated with regard to compliance with the applicable requirements for both manual signaling boxes and electrically-actuated transmitters.1.4 A manual signaling box shall be constructed for use with system-control units, electrically-actuatedtransmitters, or similar units that will permit its application in compliance with applicable codes andstandards of the National Fire Protection Association.1.5 These requirements do not cover electrically-actuated transmitters.