UL 508A CRD-2015 UL Standard for Safety Industrial Control Panels - Section Paragraph Reference Table SB4 4 Subject Three phase transformer secondary available short circuit curre.pdf
《UL 508A CRD-2015 UL Standard for Safety Industrial Control Panels - Section Paragraph Reference Table SB4 4 Subject Three phase transformer secondary available short circuit curre.pdf》由会员分享,可在线阅读,更多相关《UL 508A CRD-2015 UL Standard for Safety Industrial Control Panels - Section Paragraph Reference Table SB4 4 Subject Three phase transformer secondary available short circuit curre.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared and published by Underwriters Laboratories Inc.(UL). It is normative for the a
2、pplicable UL Product Certification Program(s); however, it is currently notpart of the UL Standard(s) referenced below.Product Category (CCN): NITWStandard Number: UL 508AStandard Title: Standard for Industrial Control PanelsEdition Date: December 20, 2013Edition Number: 2Section / Paragraph Referen
3、ce: Table SB4.4Subject: Three phase transformer secondary available short circuit currentsDECISION:Table SB4.4 revised as noted below.Table SB4.4Three phase transformer secondary available short circuit currents (Amps)aColumn 1 Column 2Transformer Minimum Transformer Secondary Voltage (V)Max kVA 208
4、Y/120b208 240 480Y/277b480 600Y/347b6005 1,160 A 930 A 810 A 510 A 410 A 410 A 330 A10 2,320 A 1,860 A 1,610 A 1,010 A 810 A 810 A 650 A15 3,470 A 2,780 A 2,410 A 1, 510 A 1,210 A 1,210 A 970 A20 4,630 A 3,710 A 3,210 A 2,010 A 1,610 A 1,610 A 1,290 A25 5,790 A 4,630 A 4,010 A 2,510 A 2,010 A 2,010
5、A 1,610 A30 6,940 A 5,560 A 4,820 A 3,010 A 2,410 A 2,410 A 1,930 A45 10,410 A 8,330 A 7,220 A 4,520 A 3,610 A 3,610 A 2,890 A75 17,350 A 13,880 A 12,030 A 7,520 A 6,020 A 6,020 A 4,820 A100 23,140 A 18,510 A 16,040 A 10,030 A 8,020 A 8,020 A 6,420 AaZ assumed to be 2.1%.bShort-circuit current shown
6、 is line-to-neutral.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable SB4.4Three phase transformer secondary available short circuit currents (Amps)aColumn 1 Column 2Transformer Minimum Transformer Secondary Voltage (V)Max kVA 208Y/120b208
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- UL508ACRD2015ULSTANDARDFORSAFETYINDUSTRIALCONTROLPANELSSECTIONPARAGRAPHREFERENCETABLESB44SUBJECTTHREEPHASETRANSFORMERSECONDARYAVAILABLESHORTCIRCUITCURREPDF
链接地址:http://www.mydoc123.com/p-1068268.html