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Also, when conducting power supply lines, it is worth ensuring their separation by branches. That is, the automatic protection system should be cut into two parts, one of which would be responsible for turning off the lighting of the left side of the room, and the second, respectively, with the right. Thus, with an emergency shutdown of one of the parts, the equipment and lighting connected to the other will remain operational. When designing a system of power supply to the garage, it is worth laying several lines, one of which will power outlets, the other is to be intended for electrical equipment of the consumer a lot of energy.