... to strict technique. It has characteristic of high reliability, long service life. According to different environment, it can equipped with ... steam ect especial and important site.2.Executive Standard:2.1 GB6450-1986 dry power transformer2.2 GB/R1094-1996 power transformer2.3 ... 1 Safety, fireproofing, non- polluter, directly used in load center.4.2 High mechanical intension.4.3 Low loss, low noise, ...