It all started about a year and a half ago, when one unlucky engineer, out of his own stupidity, climbed to roll the switch, not looking at the fact that the rogue partner "with three classes of the parish" turned the switch itself on. What came of it? Oh, just a short circuit that would have ended in burnt-out contacts, obscenities of superiors and deprivation of a premium, but the problem was that the cell was far from a sample of the operation of the operation services, and the switch itself was not new, as a result - a hefty electric arc that passed through a path of dust and dirt through the switch and my body,.