This morning at 10:07am, a flash fire broke out at the substation of the Singapore Power building on Somerset Road. This led to a blackout in the vicinity for some 20 minutes. During the same period, other areas experienced an over-voltage condition in the utility power supply. This was an extended period of elevated supply voltage, high enough to cause several problems at my workplace, causing disruptions to normal operations for many hours later even after the utility power was…