YBJ 221-1990 黑色冶金矿山井巷施工测量规范
时间:2024-05-15 18:45:23 来源: 标准资料网 作者:标准资料网 阅读:8039
基本信息
标准名称: | 黑色冶金矿山井巷施工测量规范 |
中标分类: |
矿业 >>
地质矿产勘察与开发 >>
采矿 |
ICS分类: |
采矿和矿产品 >>
采矿和挖掘
|
发布日期: | |
实施日期: | 1991-01-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 64页 |
适用范围
没有内容
前言
没有内容
目录
11
引用标准
111
所属分类: 矿业 地质矿产勘察与开发 采矿 采矿和矿产品 采矿和挖掘
MIL-M-21649C (NOTICE 1), MILITARY SPECIFICATION: MOUNT, RESILIENT, TYPE 5M10,000-H (27 MAR 1991)., MIL-M-21649C, dated 27 April 1983, has been reviewed and determined to bevalid for use in acquisition.【英文标准名称】:Audio,videoandsimilarelectronicapparatus-Safetyrequirements
【原文标准名称】:音频、视频及类似电子设备.安全要求
【标准号】:UL60065-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003-06-30
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:设备安全;电气工程;安全要求;视频设备;生产试验;定义;电子仪器;电气安全;音频设备;电子的
【英文主题词】:Audioappliances;Definitions;Electricalengineering;Electricalsafety;Electronic;Electronicinstruments;Equipmentsafety;Manufacturingtests;Safetyrequirements;Videoequipment
【摘要】:1.1.1DUThisInternationalStandardappliestoelectronicapparatusdesignedtobefedfromtheMAINSorf∞maSUPPLYAPPARATUSandintendedforreceptiongenerationrecordingorreproductionrespectivelyofaudio,videoandassociatedsignalsItalsoappliestoapparatusdesignedtobeusedexclusivelyincombinationwiththeabovementionedapparatusThisstandardconcernsonlysafetyaspectsoftheaboveapparatus;itdoesnotconcernothermatters,suchasstyleorperformanceForabove-mentionedapparatuswhicharefedfrOmasupplysourceotherthantheMAINSorfromaSUPPLYAPPARATUS,andwhichcontainaLASERSYSTEMorproduceaninternalOPERATINGVOLTAGEgreaterthan4000V(peak),thisstandardappliesasfarasapplicableNOTE1InAustralia.Canada,Denmark,Japan,Rumania,SouthAfdca,UnitedStatesofAmedcaandUnitedKingdomthisstandardis,whererelevant,usedasaguidefarthetestingofbanervoperatedapparatusThisstandardappliestotheabove—mentionedapparatus,ifitisdesignedtobeconnectedtotheTELECOMMUNICATIONNETWORKorsimilarnetwork,forexamplebymeansofanintegratedmodemSomeexamplesofapparatuswithinthescopeofthisstandardarereceivingapparatusandamplifiersforsoundand/orvisionindependentLOADTRANSDUCERSandSOURCETRANSDUCERSSUPPLYAPPARATUSintendedtosupplyotherapparatuscoveredbythescopeofthisstandard—ELECTRONICMUSICALINSTRUMENTS,andelectronicaccessoriessuchasrhythmgenerators,tonegenerators,musictunersandthelikeforusewithelectronicornon—electronicmusicallnstruments:audioand/orvideoeducationalapparatusvideoprojectors;videocamerasandvideomonitors;.h...o...u...s...e...h...o.—ld—videogamesandflippergamesNOTE2Videeandflippergamesforcommercialusearecoveredby+Eeee∞e,士*啊旦__丝jukeboxes‘FiguresinsquarebracketsrefertothebibliographygiveninannexPCopyrightbytheUnder~EiLersLaboratories]ncSunSep0510:34:852004
【中国标准分类号】:M70
【国际标准分类号】:33_160_01
【页数】:278P.;A4
【正文语种】:英语