Download or read book GB T 21707 2018 Translated English of Chinese Standard GBT 21707 2018 GB T21707 2018 GBT21707 2018 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-08-10 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard gives the insulation specifications for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors, including terms and definitions, technical requirements and inspection rules. This standard is applicable to variable frequency adjustable speed definite purpose converter-fed three-phase induction motors with rated voltage of 1140 V and below.