MIL-HDBK-1798
作者:标准资料网 时间:2024-05-19 06:35:04 浏览:9016
来源:标准资料网
MIL-HDBK-1798 (NOTICE 1), DEPARTMENT OF DEFENSE HANDBOOK MECHANICAL EQUIPMENT AND SUBSYSTEMS INTEGRITY PROGRAM (19 DEC 1997) (SUPERSEDING MIL-STD-1798)., The purpose of this standard is to describe the general process (program) to achieve and maintain the integrity of aerospace and ground mission mechanical systems, subsystems, and equipment.
基本信息
| 标准名称： | 固体火箭发动机比冲效率的简化计算方法和计算机程序 |
| 中标分类： |
航空、航天 >>
航天器及其附件 >>
航天器动力系统 |
| 发布日期： | 1988-03-18 |
| 实施日期： | 1988-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 36页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 航空 航天 航天器及其附件 航天器动力系统
【英文标准名称】:Liveworking-Portableequipmentforearthingorearthingandshort-circuiting
【原文标准名称】:带电作业.便携式接地或接地短路设备
【标准号】:BSEN61230-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;耐久性;定义(术语);接地装置;接地装置;电气工程;电气安全;电气安全性;移动的;易动的;便携的;防电击;选择;短路电流;试验;测试;痕量元素分析;电压
【英文主题词】:Definitions;Devicesforearthing;Earthingdevices;Electricalengineering;Electricalsafety;Mobile;Portable;Protectionagainstelectricshocks;Selection;Short-circuitcurrents;Testing;Voltage
【摘要】:ThisInternationalStandardisapplicabletoportableequipment,withorwithoutmatchingconnectionpoints,fortemporaryearthingorearthingandshort-circuitingofelectricallyisolatedorde-energizeda.c.andd.c.installations,distributionandtransmissionnetworks,whethertheyareoverheadorundergroundorofloworhighvoltage.NOTEAnnexAprovidesguidanceforapplicationtorailwaysystems.Thisstandardcoversequipmentcomprisinganearthingorashort-circuitingoranearthingandshort-circuitingdeviceandinsulatingcomponent.AnexampleisgiveninFigure1aandFigure1b.Italsocovers:–earthingorshort-circuitingorearthingandshort-circuitingdevicesintendedtobeinstalledwithinsulatingmeans.AnexampleofanearthingdeviceisgiveninFigure1c;–separatecomponents,suchasconductiveextension(seeFigure1b)orclamporcablewithendfittings.Theperformanceofequipment,devicesandcomponentscoveredbythisstandardisbasedonelectro-dynamicandelectro-thermaleffectsactingduringshort-circuit.Thewithstandcapabilityofthedevicesandequipmentisexpressedbytheirratedvaluesofcurrent,timeandpeakfactor.Noratedvoltageisgiven,butthegeometricaldimensionsoftheequipmentarealsolinkedtothevoltageoftheinstallation.Examplesofconnectiondiagramsofearthingandshort-circuitingdevicesaregiveninFigures2and3.AssociatedusuallengthsofcablesaregiveninTable1.Notcoveredinthisstandardare:–insulatingmeans,suchasinsulatingsticks,telescopicsticks,insulatinghandles,insulatinggloves,aerialdeviceswithinsulatingbooms,insulatingropestobeusedtoinstalltheearthingandshort-circuitingdevice;–insulatingcomponents,exceptforbasicsafetyrequirementsfortheinsulatingelement;NOTEBasicsafetyrecommendationsforearthingsticksaregiveninAnnexB.–devicesmeantonlyforthedrainingofinducedcurrents;–relevantworkingproceduresforusingportableequipmentforearthingorearthingandshort-circuiting.NOTETheequipmentcomplyingwiththisstandardshouldbeusedaccordingtosafeworkingproceduresandaccordingtolocalornationalregulation,suchasliveworkingordeadworkingprocedures.
【中国标准分类号】:K47
【国际标准分类号】:13_260;29_260_99
【页数】:66P.;A4
【正文语种】:英语
