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热电偶用陶瓷绝缘管检测项目报价? 解决方案? 检测周期? 样品要求? |
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1.1 本标准给出了电子闪光装置的安全要求。 1.2 本标准适用于储能不超过2000J的不被水滴或水溅的下列摄影用电子闪光装置及其相关装置: a)单个闪光装置,可有一个以上可同时闪亮的闪光头。 b)连续多次曝光摄影用闪光装置。 c)与摄影用电子闪光装置连接的电池充电器和电源装置;它可能是电源插头的一部分。 d)附属装置,例如:说明书中列举的光量调节器及闪光同步器等。 本标准不适用于频闪装置。 就电源而言,适用于下列几种类型: a)用电网电源工作的闪光装置; b)用电池工作的闪光装置; c)电网电源和电池均可用的闪光装置。 1.3 本标准不适用于对地额定电源电压超过250V(有效值)的装置。 1.4 本标准仅涉及闪光装置的安全不涉及其他性能(见第3章)。
GB/T的本部分规定了各种结构构件在标准受火条件下确定其耐火性能的试验方法。
本标准规定了用熔丝法和比较法测量铂铑热电偶丝热电动势的方法。本标准适用于测量直径为0.05mm~0.1mm范围内的铂铑热电偶细丝。其他贵金属和贱金属热电偶细丝的热电动势测量也可参照进行。
本部分规定了使用250V以下直流电或50H<下标z>或60H<下标z>的1000V以下交流电的灯的控制装置的一般要求和安全要求。本部分还适用于尚未标准化的灯所使用的控制装置。本部分涉及的试验均为型式试验。
本标准规定了工业热电偶的分类、技术要求、试验方法、检验规则、包装和标志。本标准适用于分度表和允差符合GB/T 16839.1和GB/T 16839.2的可拆卸的、主要用于氧化气氛的工业热电偶。对于其他型式的工业热电偶,可参照采用本标准的全部或部分条文。
本规范适用于新建、改建及扩建的微组装生产线工艺设备的安装工程施工、调试、试运行及验收。
本规范适用于煤矿建设电气设备安装工程的施工及验收。
本规范适用于(300~1500)℃范围内包括带温控器和不带温控器的卧式管式热电 偶检定炉(以下简称检定炉)温度场的测试。对于立式管式检定炉、退火炉的温度场测试,可参照本规范执行。
本标准规定了引用标准、分类规则、产品分类。 本标准适用于仪器仪表材料产品,可作为计划、统计、管理、标准制订的依据。
The dodument cover requirements for electrically operated damper assemblies, that are intended for installation in the vent or chimney connector of automatically operated oil-fired appliances employing an atomizing type oil burner. The damper assembly is intended to restrict or block the connector opening when the burner is not firing. These requirements cover automatic vent or chimney connector dampers for oil-fired appliances having a flue gas temperature not in excess of 538 ?C (1000 ?F), unless marked for a lower temperature. The vent or chimney connector dampers covered under these requirements are not for use on oil-fired appliances that employ vaporizing type oil burners. Automatic vent or chimney connector dampers are intended for installation in accordance with the following standards of the National Fire Protection Association: a) Oil-Burning Equipment, NFPA 31. b) Chimneys, Fireplaces, and Vents, NFPA 211. c) National Electrical Code, ANSI/NFPA 70. A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.
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.
These revisions are to the UL 296 proposals announced in the March 18, 2005 issue of ANSI's \"Standards Action.
1.1 These requirements cover vane type waterflow indicators intended for use in fire protective signaling systems to be employed in ordinary indoor locations, in accordance with the National Fire Alarm Code, NFPA 72. 1.2 Waterflow indicators covered by these requirements include sizes 3/4 inch and larger. The indicator sizes refer to the nominal inside diameter of the main sprinkler pipe or tubing on which they are installed. 1.3 A vane type waterflow indicator is an assembly of a mechanism having electrical contacts arranged to transmit a coded or noncoded signal when the vane, located in the supply pipe (riser) of a sprinkler system, is moved by the flow of water in the pipe. This flow is normally caused by the opening of one or more sprinkler heads resulting from a fire condition. The signaling contacts are intended to be connected to circuits of private fire protective signaling systems. 1.4 These requirements do not cover pressure-operated waterflow indicators.