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Selection of industrial plugs and sockets for containers
Source: Taixi electric Date: February 22, 2019

As the ports are all close to the sea or river, the waterproof of power plug-in must be considered, as well as the international specificity of containers, the mobility of some temporary handling equipment and the convenience of equipment maintenance power supply.

The power supply facilities of port and wharf must be matched with international shipping. In order to keep the freezing temperature in the container during the transfer, it is necessary to plug in the power supply on the wharf to continue refrigeration. This determines that the yard must be equipped with the same specification of the container socket. That is to use 380V 32A ground pole, 3 h, 4 pole, anti immersion industrial plug and socket.

Refrigerated container is a kind of special container which has good heat insulation and can maintain a certain low temperature. It is suitable for the transportation and storage of various perishable food. A container specially designed for the transportation of frozen or cryogenic cargo that requires a certain temperature. The operating temperature range is - 30 ℃~ 12 ℃, and the more general range is - 30 ~ 20 ℃

Because the temperature of the refrigerator is very low, there are also requirements for the special plug and socket of the container. The grounding wire is in the direction of 3 o'clock, which is what we call 3H. The conventional grounding wire is 6h (6 o'clock direction).

Let's take a look at the detailed drawing of the container plug and socket

Next, let's take a look at the comparison between the conventional industrial plug and socket 6h and the container special plug and socket 3H