微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读

1. Scope 1.1 This Standard applies only to gapless metal oxide surge arresters of separate mounting or those supplied integrally with other equipment. The surge arresters are designed to limit voltage surges in 50 or 60 Hz alternating current power ci

定价: 455元 / 折扣价: 387

在线阅读 收 藏

2. Scope 2.1 Type of Equipment This standard applies to cast resin partitions pressurized with inert gases, eg, sulphur hexafluoride, carbon tetrafluoride, or a mixture of such gases, such as sulphur hexafluoride and nitrogen used in indoor and outdo

定价: 455元 / 折扣价: 387

在线阅读 收 藏
C22.2 NO. 201-M1984 (R2004) Metal-Enclosed High Voltage Busways 现行 发布日期 :  1970-01-01 实施日期 : 

1. Scope 1.1 This Standard applies to indoor and outdoor metal-enclosed busways for voltages from 751 V to 46 kV, inclusive, ac or dc, intended to be used in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I.

定价: 501元 / 折扣价: 426

在线阅读 收 藏

1. Scope 1.1 This Standard covers sprayed coatings of aluminum and zinc applied by powder, wire and molten metal processes for the protection of iron and steel against atmospheric corrosion. 1.2 This Standard excludes conduit coated with zinc by me

定价: 364元 / 折扣价: 310

在线阅读 收 藏