PGL dc vcb switchgear services can be used in power plants, substations, industrial and mining enterprises.
PGL low-voltage fixed switchgear (hereinafter referred to as power distribution panel), used in power plants, substations, industrial and mining enterprises, frequency 50Hz, rated voltage 380 (400) V and below low-voltage power distribution system, as power, lighting power distribution For use.
This product complies with GB7251.1 "Low-Voltage Switchgear and Control Equipment", IEC60439-1 "Low-Voltage Switchgear and Control Equipment" and other standards.
1. This product is fixed installation and is an open-type double-sided maintenance low-voltage power distribution device.
2. The basic structure is welded by thin steel plate and angle steel. There is a door in front of the screen, and an instrument panel above the screen. It is a small door that can be opened. Indicators can be installed for easy maintenance.
3. Combinations are spliced in parallel, and partitions are installed between the screens, which reduces the possibility of expanding accidents due to failures in a single screen. Above the frame behind the screen, there is a main busbar installed on the insulating frame, and there is no busbar shield. In order to prevent the vicious accident of the main busbar short-circuiting by falling metal objects from above. 4. This product has a good protective grounding system, the main grounding point is welded under the frame, and the meter door also has a grounding point to interconnect with the shell.
5. The neutral bus is installed on the insulator below the screen.
6. When multiple screens are in parallel, protective panels can be installed on the left and right sides of the start and end screens.
1 The ambient air temperature does not exceed 40℃, and the average value measured within 24h does not exceed 35℃, the lowest ambient air temperature -5℃:
2. The altitude of the installation site does not exceed 2000m;
3. The surrounding air is not significantly polluted by dust, smoke, corrosive and soluble gases, steam or salt spray;
4. Atmospheric conditions: The air is clean, and the relative humidity should not exceed 50% when the maximum temperature is +40℃. At a lower temperature, a higher relative humidity is allowed. For example: The relative humidity is 90% at +20°C. However, it should be considered that due to temperature changes, moderate condensation may occasionally occur;
5. When the equipment is installed, the inclination from the vertical does not exceed 5°;
6. The equipment should be installed in a place where there is no severe vibration and impact.
