GB12976.1-1991 额定电压 35kV 及以下铜芯、铝芯纸绝缘电力电缆 第1部分 一般规定.pdf

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1、中华人民共和国国家标准额定电压35kV及以下铜芯、铝芯纸绝缘电力电缆GB12976.1一91第7部分:一般规定Copperoraluminiumconductorpaper-insulatedpowercableswithratedvoltagesupto35kVPart1:General1主题内容与适用范围1-1主题内容本标准规定了额定电压35kV及以下铜芯、铝芯纸绝缘电力电缆的材料、技术要求、验收规则、包装及贮运，1.2适用范围1.2.1本标准适用于交流额定电压35kV及以下铜芯或铝芯油浸纸绝缘金属套电力电缆。1.2.2本标准的油浸纸绝缘金属套电力电缆包括不滴流电缆和粘性油浸纸

2、绝缘电缆两个系列产品。1.2.3电缆的额定电压应适合使用电缆系统的运行情况，用Ua/rT(rim)表示，均为有效值，单位为kVoUo-一电缆设计用的导体与屏蔽或金属套之间的额定毛频电压。厂—电缆设计用的导体之间的额定工频电压。Um—设备最高电压(使用设备的系统最高电压的最大值)。三相系统用电缆的额定电压如表1规定。表1kvl.'=UUm第1类电绳第2类电缆11.20.60.633.61.名3‘667.2366101268.71517.58.7122024121835422126注打。按系统接地故障持续时间不同分为两类，具体分类如下:第I类电缆一用于单相接地故障时间每次一般不大于Im

3、in的系统亦可用于最长不超过8h,每年累计不超www.bzfxw.com过土26h的系统第2类电缆一用于接地故障时间更长的系统。对电缆绝缘性能要求较高的场合，也应采用第2类1.2.4本标准必须与GB12976.2,GB12976.3等一起使用。国家技术监督局1991一06一06批准1992一03一01实施GB12976.1一912弓I用标准GB469铅锭GB1196重熔用铝锭技术条件GB2951电线电缆机械物理性能试验方法GB2952电缆外护套GB3048电线电缆电性能试验方法GB3953电工圆铜线GB3955电工圆铝线GB3957电力电缆铜、铝导电线芯GB4005电线电缆交货盘G

4、B6995电线电缆识别标志GB7969电力电缆纸GB8170数值修约规则3术语3.1标称值制造厂必须保证的规定值.且都具有规定公差3.2假定直径为确定电缆护层各组成部分的厚度而规定的值。3.3测量值用规定方法测量或试验所获得的数值。4产品命名和代号4.1代号铜导体·············”···················································⋯⋯(丁)省略铝导体······························“······”·································⋯⋯L纸绝缘··········

5、”····················”·············，··························⋯⋯2铅套·························”··，······”···”·”··”···，···”····，·”·，·····“·⋯⋯Q铝套···························，··································，··············⋯⋯L分相电缆···········，··········································，·············⋯

6、⋯F不滴流电缆····················⋯⋯，’’········································⋯⋯D粘性电缆····················，···，·························，·············⋯⋯省略外护层代号···················································⋯⋯按GB2952规定4.2产品表示方法4.2.1产品用型号、规格(额定电压、芯数、标称截面)及标准编号表示。4.2.2举例a.铝芯不www.bzfxw.com滴流油浸纸绝缘分相铅套

7、钢带恺装聚氯乙烯套电力电缆，额定电压21/35kV.三芯，标称截面150mm"表示为:ZLQFD22-21/353又150GB12976.2b铝芯粘性油浸纸绝缘铝套聚乙烯套电力电缆，额定电压0.6/1kV，三个主线芯.标称截面150mm,.中性线芯标称截面70mmz，表示为:ZL.i.03-0.6/13X150-}-1X70GB12976.37GB12976.1一915材料5.1导体铜铝见GB3953,GB3955,5.2电力电缆纸见GB7969,5.3护套铅见GB4