“您好，这里是XX光缆公司，请问有什么可以帮您的？”……自打今天早上进办公室以后，电话就没停过，我是一手接电话，一手敲键盘，虽说现在金融危机正袭击全球，但好像对我们公司不太有影响，每天还是接不完的电话、订单，老板还不时地丢些新任务下来，照这样发展下去，估计“女超人”很快就要诞生了。没想到，说曹操曹操就到----“蔷薇啊，上次我们接洽的MR.Williams终于下单了，这可是个大客户啊，这笔生意做成了，对我们公司来说是质的飞跃啊。不过，对方要求我们的货要通过UL认证，你尽快整理份关于UL线材认证的材料给我”。
……UL认证是什么？这个词对于我这个才入行的新人来说是彻底陌生的（见识太少，大家不要笑我啊）。空想没用，还是去百度一下吧。别说，网上的资源还真多，不经意间看到有一个UL之窗的论坛，名字里有UL，应该能找到我想找的东西吧。进去找了下，还真被我找到了，原来UL认证是美国的一项产品质量检测标准，要想出口产品到美国，一般都要通过此项认证。我们公司是生产光缆的，我就重点搜了一下UL线材认证方面的资料，发现根据线材规格的不同，相对应的UL标准也是不尽相同的。现针对我公司主要生产地光缆方面向大家简单介绍一下相对应的UL标准。
UL光纤线缆标准是依照美国国家电工法规NEC(NationalElectricalCode)，将线缆分为主要两类：一为不带导电金属组件或材质，一为含导电组件；此外，依照光纤的布线环境及燃烧等级，可分为如下两种型号：PlenumFlameTest和RiserFlameTest。
目前UL是采用UL1651标准进行光纤线缆的安规结构及测试标准，不过其并未规范光纤及光纤披覆层的材质，而是以燃烧测试，即电缆线是否有延烧的可能性，来验证光纤电缆铺设于通讯环境中是否符合安全条件。此外，UL1651并不包含光纤性能测试，以及带电流的导体的相关测试。
主要检测范围如下：
A．Theserequirementscoversingleandmultipleoptical-fibercablesforcontrol,signaling,andcommunicationsasdescribedinArticle770andotherapplicablepartsoftheNationalElectricalCode(NEC).
Cablescomplyingwiththeserequirementsare:
TypeOFNP-Plenum-Anonconductivecableforuseinducts,plenums,andotherspacesusedforenvironmentalair.Anonconductivecablecontainsnometallicmembersandnootherelectricallyconductivematerials.
TypeOFCP-Plenum-Aconductivecableforuseinducts,plenums,andotherspacesusedforenvironmentalair.Aconductivecablecontainsnon-current-carryingconductivememberssuchasmetalstrengthmembersandmetallicvaporbarriers.
TypeOFNR-Riser-Anonconductivecableforverticaluseinshaftsorfromfloortofloor.
TypeOFCR-Riser-Aconductivecableforverticaluseinshaftsorfromfloortofloor.
TypeOFNandOFNG-GeneralPurpose-Nonconductivecablesforgeneralpurposeuse.
TypeOFCandOFCG-GeneralPurpose-Conductivecablesforgeneralpurposeuse.
B．Smokeandfireconsiderationsareasfollowsforthecablescoveredintheserequirements:
a)TYPEOFNPandOFCPCABLES?Cablesthatareintendedforinstallationinaccordancewithsection770-53(a)oftheNationalElectricalCode(ANSI/NFPA70-1993)inaduct,plenum,orotherspaceusedtotransportenvironmentalairwithoutthecablebeingenclosedinaracewayinthatspacearetestedforsmokeandflamecharacteristicsinaccordancewiththeTestforFlame-PropagationandSmoke-DensityValuesforElectricalandOptical-FiberCablesUsedinSpacesTransportingEnvironmentalAir(UL910).Acablethatcompliesexhibitsamaximumflame-propagationdistancethatisnotgreaterthan5ft,0inor152cm,apeakopticaldensityofsmokeproducedof0.50orless(32percentlighttransmission),andanaverageopticaldensityofsmokeproducedof0.15orless.
b)TYPEOFNRandOFCRCABLES?Cablesthatareintendedforuseinverticalrunsinashaft,orpenetratingmorethanonefloor,inaccordancewithsection770-53(b)oftheNationalElectricalCode(ANSI/NFPA70-1993)aretestedforflame-propagationcharacteristicsinaccordancewiththeTestforFlamePropagationHeightofElectricalandOptical-FiberCablesInstalledVerticallyinShafts(UL1666).Acablethatcomplieshasaflame-propagationheightlessthan12ft,0inor366cmandhasatemperatureof850.0EF(454.4EC)orlessataheightof12ft,0inor366cm.
c)TYPEOFN,OFNG,OFC,orOFCGCABLES?TypeOFNorOFCcablesthatareintendedforinstallationinaccordancewithsection770-53(c)or(d)oftheNationalElectricalCode(ANSI/NFPA701993)complywitha70,000Btu/h(20.5kW)vertical-trayflametestthat,atthecablemanufacturer'soption,iseitherofthefollowing.
1)TheULtestdescribedin9.3and9.4oftheserequirements.ThisULtestisessentiallythesameasthetestdescribedinANSI/IEEE383-l974(R1982).
2)TheCSAFT4testasdescribedin9.5oftheserequirements.ThistestdiffersfromtheIEEEandULtestsinloading(morecablesareused,withsmallcablesbundled,andthespacingbetweencablesorbundlesislimited),burnerangle,andfailurecriterion.
TypeOFCGandOFNGcablesmustcomplywiththeCSAFT4test.
C．CablescoveredintheserequirementsarenotrequiredbytheNECtobeusedinraceway.Thesecablesarecapableofusewithoutthephysicalprotectionofracewaybutmaybepulledintoconduitorinstalledinotherraceway.
D．Theserequirementsdonotcovercablesthatcontaincurrent-carryingconductors.Requirementsforcablesthatcontainelectricalandopticalfibermembersarefoundintheapplicablestandardfortheelectricalcable.
E．Theserequirementsdonotcovertheopticalperformanceofthecable.
F．Aproductthatcontainsfeatures,characteristics,components,materials,orsystemsnewordifferentfromthoseinusewhentheStandardwasdeveloped,andthatinvolvesariskoffireorinjurytopersons,shallbeevaluatedusingtheappropriateadditionalcomponentandend-productrequirementsasdeterminednecessarytomaintainthelevelofsafetyfortheuseroftheproductasoriginallyanticipatedbytheintentofthisStandard.
由于本人属于菜鸟一级，在此就不对以上英语内容做字面翻译了，以免误导大家，哪位高手如帮忙翻译整理本人将不胜感激。介绍有所不足之处烦请大家见谅，如果你们想找相关的材料，还是去专业的UL安规论坛上找吧，那里发布的信息权威、可信度高。不过，毕竟这是我牺牲大好休息时间整理出来的，大家可要帮忙顶顶啊，没有功劳也有苦劳嘛，不胜感激、不胜感激。