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BS 3L 122-1970 镁-铝(8)-锌(0.5)-锰(0.3)合金铸锭和铸件规范(固溶处理)

上一篇: BS 1090-1970 矿山用手持式电动钻机的防火规范
下一篇: BS 2L 126-1970 镁-铈(稀土金属)(3.0)-锌(2.3)-锆(0.6)合金铸锭和铸件规范(沉淀处理)

Product Code:SAE J2698
Title:Primary Single Phase Nominal 120 VAC Wiring Distribution Assembly Design - Truck and Bus
Issuing Committee:Truck And Bus Electrical Systems Committee
Scope:1.1This SAE Recommended Practice covers the design and application of primary on-board wiring distribution system harnessing for surface vehicles. This document is intended for single phase nominal 120 VAC circuits that provide power to truck sleeper cab hotel loads so that they may operate with the main propulsion engine turned off. The power supply comes from alternative sources such as land-based grid power, DC-AC inverters and auxiliary power generators. The circuits may also provide power to improve vehicle performance through charging batteries or operating cold-weather starting aids.1.2This document is not intended to provide guidance for electric or hybrid electric vehicle wiring circuits. Refer to SAE J1673 for high voltage automotive wiring assembly design.1.3Engine block heaters are 120 VAC devices that are used on a multitude of vehicle platforms in addition to trucks with sleeper cabs. Generally, the engine block heater circuit is wired independent of hotel loads. SAE J2698 does not apply to independently wired engine block heater circuits. Engine block heaters that are integrated with hotel loads are subject to the guidelines in this recommended practice.1.4It is understood that drivers may choose to operate 120 VAC devices with the truck moving or at rest. For example, a passenger may operate the microwave or watch television and need to operate an inverter. The environment that these devices are operated in can also vary with exterior ambient temperature extremes. Exposure to oil and vibration are other elements that typical household 120 VAC wiring would not normally be exposed to; therefore, the construction of this power distribution is made more robust for a mobile trucking environment. Driver interaction with the 120 VAC power through use of appliances or connection of cord sets requires special attention to safety aspects dictated in regulatory standards from Nationally Recognized Testing Laboratories (NRTLs) approved labs like Underwriter?s Laboratories (UL), Canadian Standards Association (CSA) or from the National Electric Code (NEC) that are not common practice with typical 12 VDC vehicle wiring. This recommended practice supports that all electrical materials, devices, components, appliances, fittings and equipment shall be Listed, Labeled or Certified to UL and CSA standards and shall be connected in an approved manner when installed. Detailed requirements are listed hereafter.【英文标准名称】:Precastconcreteproducts-Foundationelements;GermanversionEN14991:2007
【原文标准名称】:预制混凝土制品.地基构件
【标准号】:DINEN14991-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-07
【实施或试行日期】:2008-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电容性负载;CE标记;组件;混凝土;合格;建筑;施工材料;装配产品;控制图;定义;尺寸;土方工程;评估;地基;基础;负荷;作标记;普通混凝土;物理性能;桩基础;桩;预制混凝土部件;预制配件;合格试验;形状;规范(验收);应力;监督(认可);试验方法;测试;类型
【英文主题词】:
【摘要】:ThisEuropeanStandarddealswiththerequirementsandthebasicperformancecriteriaandspecifieswhereapplicableminimumvaluesforprecastfoundationelements(comprisingcolumnswithintegratedfoundationelements,pocketfoundationelements,sockets)madeofreinforcednormalweightconcreteforstructureofbuildingsaccordingtoEN1992-1-1.ThisEuropeanStandardcoversterminology,performancecriteria,tolerances,relevantphysicalpropertiesandspecialaspectsoftransportanderection.ThisEuropeanStandarddoesnotcoverthebearingcapacitydeterminedbytesting.
【中国标准分类号】:Q72
【国际标准分类号】:93_020
【页数】:31P;A4
【正文语种】:德语

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