Today I was in the ZUPE in Krolovo, told how they put 300 uninterruptors. They were in a separate room, a company came to install. I started testing, testing something. On the second day, they almost fainted when instead of a salutation they heard "Boys, if you didn't write in the instructions, you can't connect the input power plug with the output, we would probably never try it!" I will immediately say the result is unknown.