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UL 651-2005 表40和80的硬质聚氯乙烯导管和配件

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【英文标准名称】:ULStandardforSafetySchedule40and80RigidPVCConduitandFittings
【原文标准名称】:表40和80的硬质聚氯乙烯导管和配件
【标准号】:UL651-2005
【标准状态】:作废
【国别】:美国
【发布日期】:2005-10-04
【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】:导(线)管;直径;装置用导管;电线;挤压的;配件;抗冲击(强度);米制的;小型断路器;管道配件;聚氯乙烯;聚氯乙烯管道;刚性;抗震性
【英文主题词】:Conduits;Diameter;Ductsforinstallations;Electricalcords;Extruded;Fittings;Impactresistance;Metric;Miniaturecircuit-breakers;Pipefittings;Polyvinylchloride;PVCpiping;Rigid;Shockresistance
【摘要】:TheserequirementscoverSchedule40andSchedule80extrudedrigidPVC(polyvinylchloride)electricalconduitandfittingsconsistingofelbowsandotherbendsmadefromandforusewiththisconduit.Theyalsocovercouplings,adapters,expansionjoints,andsimilarfittingsthatareconstructedofrigidPVC.Thedesignations"Schedule40"and"Schedule80"refertoUSAtradesizesofconduithavingiron-pipe-sizeoutsidediametersandspecificwallthicknesses.Couplings,adapters,expansionjoints,andsimilarfittingsareintendedtobeusedwithbothheavy-wallandthin-wallrigidPVCconduit,elbows,andotherbendsinaccordancewiththeNationalElectricalCode(NEC),NFPA70.
【中国标准分类号】:G33
【国际标准分类号】:29_120_10
【页数】:86P.;A4
【正文语种】:英语


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基本信息
标准名称:2706型功率放大器试行检定规程
中标分类: 综合 >> 计量 >> 无线电计量
发布日期:
实施日期:1996-04-01
首发日期:
作废日期:
出版日期:
页数:6页
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所属分类: 综合 计量 无线电计量
Product Code:SAE ARP958
Title:Electromagnetic Interference Measurement Antennas; Standard Calibration Method
Issuing Committee:Ae-4 Electromagnetic Environmental Effects (E3) Committee
Scope:This SAE Aerospace Recommended Practice (ARP) outlines a standard method for the checkout and calibration of electromagnetic interference measurement antennas. Its primary application is for use when measuring a source 1 m from the antenna in a shield room versus a source at a greater distance (far field). This is the typical distance used in performing military EMC testing. Thus, this is a method of calibration. Shield room characteristics are not considered. It does not address an unknown distributed source. Yet it is close to reality since it is based on another antenna that represents a distributed source. This document presents a technique to determine antenna factors for antennas used primarily in performing measurements in accordance with 2.1 and 2.2. The purpose of Revision B is to include the calibration of other antennas, such as small loop antennas that are also specified for use in these same references. Revision D includes a specific procedure for loop antennas that are separated by 1 m from the device under test.