欢迎访问中科光析科学技术研究所官网!

免费咨询热线
|
自动电气控制器检测项目报价? 解决方案? 检测周期? 样品要求? |
点 击 解 答 ![]() |
《低压开关设备和控制设备》的本部分适用于在开关设备和控制设备中作控制、信号指示、联锁等用途的控制电路电器和开关元件。本部分适用于额定电压交流不超过1 000 V(频率不超过1 000 Hz)或直流不超过600 V的控制电路电器。对于工作电压低于交流或直流100 V的控制电路电器,见4.3.2.2。本部分适用于下列规定型式的控制电路电器:——人力操作控制开关,例如:按钮、旋转开关、脚踏开关等;——电磁操作控制开关,具有延时或瞬时动作,例如:接触器式继电器;——指示开关,例如:压力开关、温敏开关(热敏开关)、程控器等。——位置开关,例如:由机器或机械的一部分操控的控制开关;——有关的控制电路电器,例如:指示灯等。本部分也适用于与其他电器(其主电路符合其他标准)相关联的规定型式的开关元件,如:——开关电器(例如:接触器、断路器等)的辅助触头,该触头并不仅仅用于对开关电器线圈的控制;——外壳门上的联锁触头;——旋转开关的控制电路触头;——过载继电器的控制电路触头。接触器式继电器除符合本部分规定的使用类别外,还应符合IEC 60947-4-1:2009+A1:2012的有关要求及试验。本部分不包括GB/T 14598或IEC 61810系列标准中涉及的继电器或家用及类似用途的自动电气控制器件。指示灯、按钮等的颜色要求见GB/T 4025—2010,也可见照明委员会(CIE)出版的CIE S 0004/E—2001。本部分的目的是规定:a) 控制电路电器的特性;b) 有关下列内容的电气和机械要求:1) 需执行的各种工作制;2) 额定性能和标志的含义;3) 验证额定性能的试验。c) 控制电路电器应满足以下有关功能要求:1) 环境条件,包括封闭式装置的环境条件;2) 介电性能;3) 接线端子。
GB/T 27748的本部分是产品的安全标准,适用于固定式燃料电池发电系统,该系统可以是组装的,自成体系的或由工厂提供完整集成系统的形式,均通过电化学反应来发电。本部分适用于:——直接或通过转换开关与主网连接,或与独立配电系统连接的系统;——提供交流电或直流电的系统;——具有或不具有回收可用热量能力的系统;——使用以下各种燃料工作的系统:a) 天然气或其他来源于可再生燃料(生物质)或化石燃料的富含甲烷的气体,比如垃圾填埋气、沼气和煤层气等;b) 来源于石油精制的燃料,例如柴油、汽油、煤油以及液化石油气,如丙烷和丁烷;c) 来源于可再生燃料(生物质)或化石燃料的醇类、酯类、醚类、醛类、酮类、费托法合成液体和其他富氢的有机化合物,例如甲醇、乙醇、二甲醚、生物柴油等;d) 氢、含氢气的气体混合物,例如合成气、民用燃气等。本部分不适用于于:——微型燃料电池发电系统;——便携式燃料电池发电系统;——驱动式燃料电池发电系统。本部分适用于应用在商业、工业和家庭等领域,安装在室内和室外等无危害(未划分等级)区域的固定式燃料电池发电系统。本标准考虑了燃料电池发电系统在可预期的情况下和在制造商可预设条件下使用时,所有涉及燃料电池系统的重大危险、危险场景和事件,但不包括与环境兼容性(安装条件)有关的各种危险。本标准规定的危险情况仅限于可能对人身造成的伤害,或仅对燃料电池发电系统之外造成的破坏。本标准不涉及对燃料电池内部损坏的保护,只要这种内部损坏不会对燃料电池外部产生危害。本标准中的各项要求并非旨在限制创新,当考察本标准未曾涉及的燃料、材料、设计或构造时,这些替代方案需要被评估是否具备与本标准相当的安全、性能水平。
1 范围 本指导性技术文件规定了便携式质子交换膜燃料电池发电系统(包括直流型和交流型)的安全防护和结构的基本要求、检验项目和检验方法、标志、包装、储运以及给用户提供的说明文件的有关要求。本指导性技术文件适用于交流型和直流型便携式质子交换膜燃料电池发电系统。可用于商业、工业及住宅等无危险的室内或户外场所,本指导性技术文件不适用于道路车辆用燃料电池发电系统。 本指导性技术文件适用范围内产品可用的燃料包括:氢气、天然气、液化石油气(如丙烷、丁烷等)、液态醇类(甲醇、乙醇)、汽油、煤油、柴油、化学氢化物和金属(如锌和铝)。 类似燃料和除空气以外的氧化剂,如果与之相关的特殊危险通过附加措施得到控制,本指导性技术文件也不排除使用。1.1 系统边界 本指导性技术文件规定的便携式质子交换膜燃料电池发电系统(以下简称“便携式燃料电池系统”)总体设计应部分或全部地将下列子系统集成为一个整体,用以实现规定的功能。具体包括: ——燃料处理系统; ——氧化剂处理系统; ——热管理系统; ——功率调节系统; ——自动控制系统; ——燃料电池模块; ——燃料供应系统; ——辅助电源; ——通风系统; ——水处理系统。 便携式质子交换膜燃料电池发电系统的框图见图1。1.2等效安全要求 这些要求不排除本部分中没有明确规定的设计和结构,只要这些设计和结构经过了试验验证,并列入了便携式质子交换膜燃料电池发电系统(以下简称“便携式系统”)的文件之内。在选择设计和结构时,应当评估所采用的材料和工艺方法,使所选设计和结构能够符合本指导性技术文件规定的要求。 本指导性技术文件不包括便携式系统本身以外的气态或液态燃料容器及其连接构件。1.3说明 除另有说明外,本指导性技术文件中所有的压力均指表压。
本部分界定了动车组各部件和系统用词汇的术语、英语对应词和定义。本部分适用于动车组的标准、技术文件和科技出版物。
本标准适用于开关装置及控制装置中,作为控制、讯号、互锁等功能用之控制电路装置及开关操作元件。本标准适用于额定电压不超过交流1,000 V (频率不超过1,000 Hz)或直流600 V之控制电路装置。然而,关于使用电压低于交流100 V或为直流者,参照4.3.1.1之备考2。本标准适用于特定型式之控制电路装置,举例如下。- 人工控制开关,例:按钮、旋转开关、脚踏开关等。- 延时式或瞬时式电磁操作控制开关,例:接点式电驿(contactor relay)。- 操控开关(pilot switch),例:压力开关、温度感应开关(恒温器)、程式控制器等。- 位置开关,例:以机器或机构之一部分操作的控制开关。- 相关控制电路设备,例:指示灯等。备考1. 控制电路装置包含控制开关及相关装置,例:指示灯。备考2. 控制开关包含开关操作元件及致动系统。备考3. 开关操作元件可为接点元件或半导体元件。本标准亦适用于与其他装置(其主电路规定于其他标准中)联结之特定型式的开关操作元件,举例如下。- 开关操作装置之辅助接点(例:接点式电驿(contactor)、断路器(circuit breaker)等),此辅助接点并非专用于连接该装置之线圈使用。- 箱门之互锁接点。- 旋转开关之控制电路接点。- 过载电驿之控制电路接点。除使用类别应符合本标准外,接点式电驿亦应符合IEC 60947-4-1之要求及试验。本标准不包括IEC 60255或IEC 61810系列标准之电驿,亦不包括家用及类似用途之自动电气控制装置。指示灯、按钮等之颜色要求,列于IEC 60073及照明委员会(CIE)之第2号刊物中。
Replace the first paragraph of the scope by the following: This part of IEC 60730 applies to automatic electrical pressure sensing controls for use in, on or in association with, equipment. The equipment may use electricity, gas, oil, solid fuel, solar thermal energy, etc. or a combination thereof.
Replacement: This part of IEC 60730 applies to automatic electrical air flow, water flow and water level sensing controls for use in, or in association with, boilers with a maximum pressure rating of
This standard is Automatic electric controls for household and similar use - Part 2: Particular requirements for electrically operated gas valves, including mechanical requirements; Amendment 2.
This clause of part 1 is replaced as follows: \nReplacement:\n1 This part 2 applies to electrically operated gas valves for use in, on or in association with, equipment for household and similar use that use electricity, in combination with fuel in the gaseous state such as manufactured gas, natural gas or liquefied petroleum gas intended to be used for gas burning equipment.\nAdditional considerations may be necessary for gas with corrosive properties.\nThis part 2 also applies to electrically operated gas valves using NTC or PTC thermistors, requirements for which are contained in annex J.\n1.1 This part 2 applies to the inherent safety, to the operating values, operating times, and operating sequences where such are associated with equipment safety, and to the testing of electrically operated gas valves used in, or in association with, household or similar equipment.\nThis part 2 is also applicable to controls for appliances within the scope of IEC 335-1.\nThroughout this part 2 the word \"equipment\" means \"appliance and equipment\".\nThis part 2 does not apply to electrically operated gas valves designed exclusively for industrial applications.\nElectrically operated gas valves for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this part 2.\nThis part 2 identifies a number of mechanical features as \"under consideration.\" Until these mechanical requirements are incorporated in this part 2, each country using this part 2 will have to quantify these requirements.\nCompliance of an electrically operated gas valve with this part 2 does not imply that the valve is acceptable without further tests for these mechanical features.\n1.2 This part 2 applies to manual controls when such are electrically and/or mechanically integral with electrically operated gas valves.\nRequirements for manual switches not forming part of an electrically operated gas valve are contained in IEC 1058-1.\nThis part 2 does not apply to electrically operated gas valves of nominal connection size above DN 150.\nThis part 2 applies to electrically operated gas valves for maximum working pressures up to 400 kPa (4 bar).\nHereinafter, the term \"valve\" is used to denote an electrically operated gas valve (including prime mover and valve body).\n1.3 This part 2 does not apply to electric actuators which are covered by IEC 730-2-14.\n1.4 This part 2 also applies to valves utilized as part of a system, or valves mechanically integral with multifunctional controls.\n1.5 This part 2 does not apply to valves energized by thermoelectric energy generated in a thermocouple or thermopile inserted in a gas flame.\n2 This part 2 applies to valves with a rated voltage not exceeding 660 V and with a rated current not exceeding 63 A.\n3 Is not applicable.\n4 This part 2 applies also to valves incorporating electronic devices, requirements for which are contained in annex H.\n5 Normative references\nThis clause of part 1 is applicable except as follows:\nAddition:\nIEC 335-1: 1991, Safety of household and similar electrical appliances - Part 1: General requirements\nIEC 529: 1989, Degrees of protection provided by enclosures (IP Code)\nIEC 730-2-14: 1995, Automatic electrical controls for household and similar use - Part 2: Particular requirements for electric actuators\nIEC 1058-1: 1990, Switches for appliances - Part 1: General requirements\nISO 7-1: 1994, Pipe threads where pressure-tight joints are made on the threads —Part 1: Dimensions, tolerances and designation\nISO 228-1: 1994, Pipe threads where pressure-tight joints are not made on the threads -Part 1: Dimensions, tolerances and designation\nISO 274: 1975, Copper tubes of circular section - Dimensions ISO 301: 1981, Zinc alloy ingots intended for casting\nISO 4400: 1994, Fluid power systems and components - Three-pin electrical plug connectors with earth
This clause of part I is replaced as follows:Replacement:1.1 This part 2 of IEC 60730 applies to electrically operated gas valves for use in, on or inassociation with, equipment for household and similar use that use electricity, in combinationwith fuel in the gaseous state such as manufactured gas, natural gas or liquefied petroleumgas intended to be used for gas burning equipment.Additional considerations may be necessary for gas with corrosive properties.This part 2 also applies to electrically operated gas valves using NTC or PTC thermistors,requirements for which are contained in annex J.1.1.1 This standard applies to the inherent safety, to the operating values, operating times,and operating sequences where such are associated with equipment safety, and to the testingof electrically operated gas valves used in, or in association with, household or similarequipment, but also extended to industrial purposes when no dedicated product standardexists, such as that for central heating, air conditioning, process heating, etc.This part 2 is also applicable to controls for appliances within the scope of IEC 60335-1.Throughout this part 2 the word \"equipment\" means \"appliance and equipment\".This part 2 does not apply to electrically operated gas valves designed exclusively for industrialapplications.Electrically operated gas valves for equipment not intended for normal household use, butwhich nevertheless may be used by the public, such as equipment intended to be used bylaymen in shops, in light industry and on farms, are within the scope of this part 2.This part 2 identifies a number of mechanical features as \"under consideration\". Until thesemechanical requirements are incorporated in this part 2, each country using this part 2 willhave to quantify these requirements.Compliance of an electrically operated gas valve with this part 2 does not imply that the valve is acceptable withoutfurther tests for these mechanical features.1.1.2 This part 2 applies to manual controls when such are electrically and/or mechanicallyintegral with electrically operated gas valves.Requirements for manual switches not forming part of an electrically operated gas valve are contained inIEC 61058-1.This part 2 does not apply to electrically operated gas valves of nominal connection size aboveDN 150.This part 2 applies to electrically operated gas valves for maximum working pressures upto 400 kPa (4 bar).Hereinafter, the term \"valve\" is used to denote an electrically operated gas valve (incluclJngprime mover and valve body).1.1.3 An electric actuator that is submitted to the testing laboratory in combination with a gasvalve will be evaluated under this part 2. A separate electric actuator is evaluated underlEO 60730-2-14, which provides particular requirements for electric actuators.1.1.4 This part 2 also applies to valves utilJzecl as part of a system, or valves mechanicallyintegral with multifunctional controls.1.1.5 This part 2 does not apply to valves energized by thermoelectric energy generated in athermocouple or thermopile inserted Jn a gas flame.1.3 Is not applicable.
This standard is Automatic electric controls for household and similar use - Part 2-19: Particular requirements for electrically operated oil valves, including mechanical requirements; Amendment 2.
This clause of part 1 is not applicable.\nReplacement:\n1 This part 2 of IEC 60730 applies to electrically operated oil valves for use in, on or in association with equipment for household and similar use that use electricity, in combination with fuel in the liquid state such as distillates, residual fuels, etc.\nThis part 2 also applies to electrically operated oil valves using NTC or PTC thermistors, requirements for which are contained in annex J.\n1.1 This part 2 applies to the inherent safety, to the operating values, operating times, and operating sequences where such are associated with equipment safety, and to the testing of electrically operated oil valves used in, or in association with, household or similar equipment.\nThis part 2 is also applicable to controls for appliances within the scope of IEC 60335-1.\nThroughout this part 2 the word \"equipment\" means \"appliance and equipment\".\nThis part 2 does not apply to electrically operated oil valves designed exclusively for industrial applications.\nElectrically operated oil valves for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this part 2.\nThis part 2 identifies a number of mechanical features as \"under consideration\". Until these mechanical requirements are incorporated in this part 2, each country using this part 2 will have to quantify these requirements.\nCompliance of an electrically operated oil valve with this part 2 does not imply that the valve is acceptable without further tests for these mechanical features.\n1.2 This part 2 applies to manual controls when such are electrically and/or mechanically integral with electrically operated oil valves.\nRequirements for manual switches not forming part of an electrically operated oil valve are contained in IEC 61058-1.\nThis part 2 does not apply to electrically operated oil valves of nominal connection size above DN 150.\nHereinafter, the term \"valve\" is used to denote an electrically operated oil valve (including prime mover and valve body).\n1.3 An electric actuator that is submitted to the testing laboratory in combination with an oil valve will be evaluated under this part 2. A separate electric actuator is evaluated under IEC 60730-2-14, which provides particular requirements for electric actuators.\n1.4 This part 2 also applies to valves utilized as part of a system, or valves mechanically integral with multifunctional controls.\n1.5 Normative references\nThis clause of part 1 is applicable except as follows: Addition:\nIEC 60335-1:1991, Safety of household and similar electrical appliances - Part 1: General requirements\nIEC 60529:1989, Degrees of protection provided by enclosures (IP Code)\nIEC 60730-2-14:1995, Automatic electrical controls for household and similar use - Part 2: Particular requirements for electric actuators\nIEC 61058-1:1990, Switches for appliances - Part 1: General requirements\nISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation\nISO 228-1:1994, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation\nISO 274:1975, Copper tubes of circular section - Dimensions ISO 301:1981, Zinc alloy ingots intended for casting\nISO 4400:1994, Fluid power systems and components - Three-pin electrical plug connectors with earth contact - Characteristics and requirements\nISO 6952:1994, Fluid power systems and components - Two-pin electrical plug connectors with earth contact - Characteristics and requirements\nISO 7005-1:1992, Metallic flanges - Part 1: Steel flanges ISO 7005-2:1988, Metallic flanges - Part 2: Cast iron flanges
1.1 This part 2 of IEC 60730 applies to electrically operated oil valves for use in, on or inassociation with equipment for household and similar use that use electricity, in combinationwith fuel in the liquid state such as distillates, residual fuels, etc.This part 2 also applies to electrically operated oil valves using NTC or PTC thermistors,requirements for which are contained in annex J.1.1.1 This standard applies to the inherent safety, to the operating values, operating times,and operating sequences where such are associated with equipment safety, and to the testingof electrically operated oil valves used in, or in association with, household or similarequipment, but also extended to industrial purposes where no dedicated product standardexists, such as that for central heating, air conditioning, process heating, etc.This part 2 is also applicable to controls for appliances within the scope of IEC 60335-1.Throughout this part 2 the word \"equipment\" means \"appliance and equipment\".This part 2 does not apply to electrically operated oil valves designed exclusively for industrialapplications.Electrically operated oil valves for equipment not intended for normal household use, but whichnevertheless may be used by the public, such as equipment intended to be used by laymen inshops, in light industry and on farms, are within the scope of this part 2.This part 2 identifies a number of mechanical features as \"under consideration\". Until thesemechanical requirements are incorporated in this part 2, each country using this part 2 willhave to quantify these requirements.Compliance of an electrically operated oil valve with this part 2 does not imply that the valve is acceptable withoutfurther tests for these mechanical features.1.1.2 This part 2 applies to manual controls when such are electrically and/or mechanicallyintegral with electrically operated oil valves.Requirements for manual switches not forming part of an electrically operated oil valve are contained inIEC 61058-1.This part 2 does not apply to electrically operated oil valves of nominal connection size aboveDN 150.Hereinafter, the term \"valve\" is used to denote an electrically operated oil valve (includingprime mover and valve body).1.1.3 An electric actuator that is submitted to the testing laboratory in combination with an oilvalve will be evaluated under this part 2. A separate electric actuator is evaluated underIEC 60730-2-14, which provides particular requirements for electric actuators.1.1.4 This part 2 also applies to valves utilized as part of a system, or valves mechanicallyintegral with multifunctional controls.
1.1 These requirements cover antenna rotators intended for household and commercial use on supplycircuits in accordance with the National Electrical Code, NFPA 70.1.2 An antenna rotator generally consists of:a) A mast-mounted (generally outdoors), motorized drive unit that rotates the antenna to thedesired receiving azimuth,b) An indoor-located (usually near television- or radio-receiving equipment) user-operatedcontrol unit that delivers operating power and direction signals to the drive unit, and,c) A length of multiple-conductor Class-2 circuit cable to electrically interconnect the drive unitand the control unit. Some antenna rotating units may control antenna elevation separately or in addition to azimuth. In some cases, the drive unit may be located indoors.1.3 The power used to drive the motor of an antenna rotator is derived from a circuit complying with Class 2 limitations in accordance with Article 725 of the National Electrical Code, ANSI/NFPA 70.1.4 These requirements do not cover systems that use a stationary antenna and change or rotate thereceiving pattern by electronic or switching means. Such systems are covered by the Standard forAudio-Video Products and Accessories, UL 1492.
The following changes in requirements are being proposed: 1. Revised Label Requirements for Household Storage Tank Water Heater when Connected to a Supplemental Heat Source.
前沿科学
微信公众号
中析研究所
抖音
中析研究所
微信公众号
中析研究所
快手
中析研究所
微视频
中析研究所
小红书