Characteristics of Pacific Control Cabinet

Characteristics of Pacific Control Cabinet

The secondary circuit of a general low-voltage electrical control cabinet has a small wiring cross-sectional area of 1.5 square meters for voltage lines and 2.5 square meters for current circuits. The current circuit refers to the current signal lines of current transformers, ammeters, power factor meters, and mutual inductance meters, etc. The current flowing through is 5 amperes. In addition, the power line is yellow green red, and the zero line is blue or light blue (some are gray because the standard also distinguishes between European and American standards). The main line of the circuit should have a black line of at least 1.5 square millimeters, the red line of the control line with an AC voltage of 1.0 square millimeters, and the blue line of the DC voltage of 1.0 square millimeters. The color of the signal line is not required.

Characteristics of Pacific Control Cabinet

Some electrical control cabinets have standards. Call it a standard cabinet, GGD。 The following standards are implemented for standard electrical control cabinets: "GB50054-1995" Design Specification for Low Voltage Electrical Appliances, "GB50055-1993" Design Specification for General Electrical Equipment, "GB50303-2002" Construction Design Specification for Industrial Automation Instrumentation Engineering, "GB7251-97" Control Equipment for Low Voltage Switchgear Sets, "GB50171-97" Construction and Acceptance Specification for Electrical Device Installation Engineering Panel, Cabinet and Secondary Circuit Wiring ". However, most electrical control cabinets are not standardized because you need to determine the size of the cabinet based on the actual situation when working on the project. Standard cabinets sometimes have too much space and are not practical.

A control cabinet is an assembly of switchgear, measuring instruments, protective appliances, and auxiliary equipment in a closed or semi closed metal cabinet according to electrical wiring requirementsScreen widthAbove, its layout should meet the requirements of normal operation of the power system, facilitate maintenance, and not endanger the safety of personnel and surrounding equipment. During normal operation, the circuit can be connected or disconnected using manual or automatic switches. When there is a malfunction or abnormal operation, use protective appliances to cut off the circuit or sound an alarm. Measuring instruments can display various parameters during operation, adjust certain electrical parameters, and provide prompts or signals for deviations from normal working conditions. Commonly used in various power generation, distribution, and substations