Electrical equipment with a good heat dissipation effect comprises a transverse rack, a vertical rod and a power distribution cabinet body. An upper end surface of the power distribution cabinet bodyis provided with an accommodation chamber. The transverse rack comprises a main body. The main body is provided with slip grooves in a left and right peer mode, wherein the slip grooves are expanded back and forth and ports face towards the outside world. A front end of the main body is provided with a middle end rotation port located at a left and right middle end. A first leather strip wheel isrotatably installed in a middle end rotation port through a rotation column. A front end of each slip groove is provided with a side rotation port. Passing connection grooves which are mutually connected are arranged between the side rotation port and the middle end rotation port. A front slip block and a rear slip block which can move back and forth are installed in the slip grooves. A front screw joint rod and a rear screw joint rod are cooperatively installed in the front slip block and the rear slip block. The front screw joint rod and the rear screw joint rod are fixedly connected. A second leather strip wheel is installed in the side rotation port. The second leather strip wheel is fixedly connected to the front screw joint rod. The first leather strip wheel and the second leather strip wheel are equipped with leather strips. An outer side end of the front slip block is fixedly provided with a front connection rod which is expanded forwardly. An outer side end of the rear slip block is fixedly provided with a rear connection rod which is expanded backwardly.