Talking about the electrical problem when installing cold storage
2018-09-20 15:10
The power supply line for cold storage installation should be a dedicated branch circuit, and its capacity should be 1.5 times larger than the maximum current value of the system.
First of all, the cold storage power is very large, so it must be grounded; otherwise it will cause static or even leakage of the body shell, which will endanger personal safety; the power cord or control line should be strictly connected with the crimping card (wire clamp), otherwise it will Causes looseness and sparks and off-line, leaving hidden dangers.
In addition, it is strictly forbidden to use non-standard power cords; all the cold storage ground lines should be equipped with line protection devices such as air switch or leakage protection. Otherwise, the fire may be caused by the heat generated by plugs, sockets and wires; if there is no corresponding air switch Or leakage protection switch, it will not be able to prevent short circuit or electric leakage accident caused by equipment failure or accident, and it is impossible to disconnect the power supply in time, which may cause fire and personal injury.
It is forbidden to replace the fuse (wire) with copper wire or wire. After the fuse is blown, it should be replaced with the same type of fuse (wire); otherwise the fuse (wire) will not work, so that the circuit board will lose its protection and easily damage the chip and other components. And even burned the board.
The indoor and outdoor electrical connections of the cold storage installation shall be unaffected by tensile and torsional stresses; otherwise, short circuits or equipment failures and leakage accidents caused by the power lines may occur.
After the repair is completed, the system must be fully inspected for electrical safety to eliminate hidden dangers, including loose or aging of the terminal or cable connector, and whether the metal cover has a stuck wire or the like.
Compressor group design selection:
Regardless of the brand selection of the compressor group, it is determined according to the evaporating temperature of the cold storage and the effective working volume of the cold storage. In addition, the parameters such as the condensing temperature of the frozen or refrigerated goods, the storage quantity, and the frequency of the goods entering and leaving the warehouse are also referred to. .
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