1. Select the material and section of the neutral wire according to the standard requirements, and increase the wire diameter for special users or special sections.
2. Switches and fuses cannot be installed on the neutral line to prevent manual or mechanical misoperation of the switch, causing a broken line.
3. Repeat the grounding of the neutral wire. Once the neutral line is broken, the unbalanced load current can flow back to the neutral point of the power supply through the grounding device due to repeated grounding, thereby suppressing the offset of the neutral point of the load, so that the terminal voltage of the powered device is not excessively biased, thereby reducing The hazard caused by voltage fluctuations.
4. In dense residential areas, try to reduce the wiring method of the zero line in the building and the hutong line to avoid a zero line break and endanger one piece.
5. Strengthen the management of line equipment, check the reliability of patch cords and grounding devices regularly and regularly, and find problems in a timely manner.
Bimetallic thermometer combines two metals with different linear expansion coefficients, and one end is fixed. When the temperature changes, the thermal expansion of the two metals is different, which drives the pointer to deflect to indicate the temperature. This is bimetallic sheet thermometer, as shown in the figure on the above page. The temperature measurement range is - 80 ~ 500C, which is suitable for temperature measurement when the accuracy requirement is not high in industry. As a temperature sensing element, bimetallic sheet can also be used for automatic temperature control.
Bimetal Thermometer,Marine Bimetal Thermometer,Bimetallic Thermometer For Marine Pipeline,Bimetallic Thermostat Thermometer
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