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《低壓開關設備和控制設備》的本部分適用于在開關設備和控制設備中作控制、信號指示、聯鎖等用途的控制電路電器和開關元件。本部分適用于額定電壓交流不超過1 000 V(頻率不超過1 000 Hz)或直流不超過600 V的控制電路電器。對于工作電壓低于交流或直流100 V的控制電路電器,見4.3.2.2。本部分適用于下列規定型式的控制電路電器:——人力操作控制開關,例如:按鈕、旋轉開關、腳踏開關等;——電磁操作控制開關,具有延時或瞬時動作,例如:接觸器式繼電器;——指示開關,例如:壓力開關、溫敏開關(熱敏開關)、程控器等。——位置開關,例如:由機器或機械的一部分操控的控制開關;——有關的控制電路電器,例如:指示燈等。本部分也適用于與其他電器(其主電路符合其他標準)相關聯的規定型式的開關元件,如:——開關電器(例如:接觸器、斷路器等)的輔助觸頭,該觸頭并不僅僅用于對開關電器線圈的控制;——外殼門上的聯鎖觸頭;——旋轉開關的控制電路觸頭;——過載繼電器的控制電路觸頭。接觸器式繼電器除符合本部分規定的使用類別外,還應符合IEC 60947-4-1:2009+A1:2012的有關要求及試驗。本部分不包括GB/T 14598或IEC 61810系列標準中涉及的繼電器或家用及類似用途的自動電氣控制器件。指示燈、按鈕等的顏色要求見GB/T 4025—2010,也可見照明委員會(CIE)出版的CIE S 0004/E—2001。本部分的目的是規定:a) 控制電路電器的特性;b) 有關下列內容的電氣和機械要求:1) 需執行的各種工作制;2) 額定性能和標志的含義;3) 驗證額定性能的試驗。c) 控制電路電器應滿足以下有關功能要求:1) 環境條件,包括封閉式裝置的環境條件;2) 介電性能;3) 接線端子。
GB/T 27748的本部分是產品的安全標準,適用于固定式燃料電池發電系統,該系統可以是組裝的,自成體系的或由工廠提供完整集成系統的形式,均通過電化學反應來發電。本部分適用于:——直接或通過轉換開關與主網連接,或與獨立配電系統連接的系統;——提供交流電或直流電的系統;——具有或不具有回收可用熱量能力的系統;——使用以下各種燃料工作的系統:a) 天然氣或其他來源于可再生燃料(生物質)或化石燃料的富含甲烷的氣體,比如垃圾填埋氣、沼氣和煤層氣等;b) 來源于石油精制的燃料,例如柴油、汽油、煤油以及液化石油氣,如丙烷和丁烷;c) 來源于可再生燃料(生物質)或化石燃料的醇類、酯類、醚類、醛類、酮類、費托法合成液體和其他富氫的有機化合物,例如甲醇、乙醇、二甲醚、生物柴油等;d) 氫、含氫氣的氣體混合物,例如合成氣、民用燃氣等。本部分不適用于于:——微型燃料電池發電系統;——便攜式燃料電池發電系統;——驅動式燃料電池發電系統。本部分適用于應用在商業、工業和家庭等領域,安裝在室內和室外等無危害(未劃分等級)區域的固定式燃料電池發電系統。本標準考慮了燃料電池發電系統在可預期的情況下和在制造商可預設條件下使用時,所有涉及燃料電池系統的重大危險、危險場景和事件,但不包括與環境兼容性(安裝條件)有關的各種危險。本標準規定的危險情況僅限于可能對人身造成的傷害,或僅對燃料電池發電系統之外造成的破壞。本標準不涉及對燃料電池內部損壞的保護,只要這種內部損壞不會對燃料電池外部產生危害。本標準中的各項要求并非旨在限制創新,當考察本標準未曾涉及的燃料、材料、設計或構造時,這些替代方案需要被評估是否具備與本標準相當的安全、性能水平。
1 范圍 本指導性技術文件規定了便攜式質子交換膜燃料電池發電系統(包括直流型和交流型)的安全防護和結構的基本要求、檢驗項目和檢驗方法、標志、包裝、儲運以及給用戶提供的說明文件的有關要求。本指導性技術文件適用于交流型和直流型便攜式質子交換膜燃料電池發電系統。可用于商業、工業及住宅等無危險的室內或戶外場所,本指導性技術文件不適用于道路車輛用燃料電池發電系統。 本指導性技術文件適用范圍內產品可用的燃料包括:氫氣、天然氣、液化石油氣(如丙烷、丁烷等)、液態醇類(甲醇、乙醇)、汽油、煤油、柴油、化學氫化物和金屬(如鋅和鋁)。 類似燃料和除空氣以外的氧化劑,如果與之相關的特殊危險通過附加措施得到控制,本指導性技術文件也不排除使用。1.1 系統邊界 本指導性技術文件規定的便攜式質子交換膜燃料電池發電系統(以下簡稱“便攜式燃料電池系統”)總體設計應部分或全部地將下列子系統集成為一個整體,用以實現規定的功能。具體包括: ——燃料處理系統; ——氧化劑處理系統; ——熱管理系統; ——功率調節系統; ——自動控制系統; ——燃料電池模塊; ——燃料供應系統; ——輔助電源; ——通風系統; ——水處理系統。 便攜式質子交換膜燃料電池發電系統的框圖見圖1。1.2等效安全要求 這些要求不排除本部分中沒有明確規定的設計和結構,只要這些設計和結構經過了試驗驗證,并列入了便攜式質子交換膜燃料電池發電系統(以下簡稱“便攜式系統”)的文件之內。在選擇設計和結構時,應當評估所采用的材料和工藝方法,使所選設計和結構能夠符合本指導性技術文件規定的要求。 本指導性技術文件不包括便攜式系統本身以外的氣態或液態燃料容器及其連接構件。1.3說明 除另有說明外,本指導性技術文件中所有的壓力均指表壓。
本部分界定了動車組各部件和系統用詞匯的術語、英語對應詞和定義。本部分適用于動車組的標準、技術文件和科技出版物。
本標準適用于開關裝置及控制裝置中,作為控制、訊號、互鎖等功能用之控制電路裝置及開關操作元件。本標準適用于額定電壓不超過交流1,000 V (頻率不超過1,000 Hz)或直流600 V之控制電路裝置。然而,關于使用電壓低于交流100 V或為直流者,參照4.3.1.1之備考2。本標準適用于特定型式之控制電路裝置,舉例如下。- 人工控制開關,例:按鈕、旋轉開關、腳踏開關等。- 延時式或瞬時式電磁操作控制開關,例:接點式電驛(contactor relay)。- 操控開關(pilot switch),例:壓力開關、溫度感應開關(恒溫器)、程式控制器等。- 位置開關,例:以機器或機構之一部分操作的控制開關。- 相關控制電路設備,例:指示燈等。備考1. 控制電路裝置包含控制開關及相關裝置,例:指示燈。備考2. 控制開關包含開關操作元件及致動系統。備考3. 開關操作元件可為接點元件或半導體元件。本標準亦適用于與其他裝置(其主電路規定于其他標準中)聯結之特定型式的開關操作元件,舉例如下。- 開關操作裝置之輔助接點(例:接點式電驛(contactor)、斷路器(circuit breaker)等),此輔助接點并非專用于連接該裝置之線圈使用。- 箱門之互鎖接點。- 旋轉開關之控制電路接點。- 過載電驛之控制電路接點。除使用類別應符合本標準外,接點式電驛亦應符合IEC 60947-4-1之要求及試驗。本標準不包括IEC 60255或IEC 61810系列標準之電驛,亦不包括家用及類似用途之自動電氣控制裝置。指示燈、按鈕等之顏色要求,列于IEC 60073及照明委員會(CIE)之第2號刊物中。
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.
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