Download or read book MT T 661 2011 Translated English of Chinese Standard MTT 661 2011 MT T661 2011 MTT661 2011 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-12-08 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of electrical apparatus used underground mines. This standard applies to electrical apparatus used underground mines.