求翻译：负荷等级为三级，单回路供电，电源由厂区配电室低压侧引入控制厂房内配电屏，低压侧设隔离开关以便于检修，低压配电设备选用 型抽出式开关柜及动力配电箱。是什么意思？

Load rating of three, single-loop power supply, power distribution from the plant control room to introduce low-pressure side of the distribution panel inside the plant, low pressure side of the isolating switch is located in order to facilitate maintenance, low voltage power distribution equipment

load rating is 3 level and single-loop power supply, power supply was 65,387,640 side low-voltage electrical distribution room introduced to control plant power distribution screen, low-voltage side include isolation switch to low-voltage electrical distribution equipment selection, overhauling the

The load rank is three levels, the single return route power supply, the power source controls in the workshop by the factory district transformer vault low pressure side introduction the switchboard, the low pressure side supposes the isolator to be advantageous for the overhaul, the low pressure s

Load rating for three-level, single-loop power supply, power supply control plants introduced by factory distribution room at low voltage side of distribution panel, set the low voltage side of isolating switch for easy maintenance, low-voltage distribution equipment selection-draw switch cabinet, p

The load grade is tertiary, the single return circuit supplies power, the power is introduced by the low-voltage side of electricity distribution room of factory and controlled the distribution in the factory building to reject, the low pressure sets up on both sides and isolates the switch in order