How important is the voltage of the electric heating tube

How important is the voltage of the electric heating tube

When it comes to the understanding of the two concepts of rated voltage and working voltage, the main reason for writing this article today is that customers must distinguish between the rated voltage and the working voltage they use before purchasing our heating tubes. Otherwise, two common situations may occur. We will introduce the specific situation below. First, let's share the concept of rated voltage and working voltage with everyone!

1. Rated voltage

The rated voltage of the heating tube refers to the voltage specified and marked on the shell of the heating tube during the redesign, which is connected to the heating tube. Or to put it simply, the rated voltage is the voltage that the customer requests us to provide during processing and production. There are generally 24V, 48V, 110V, 220V, 380V, and so on.

2. Working voltage

For a single heating tube connected to the power supply, the working voltage of the heating tube refers to the voltage specified in the design when connected to the component, that is, the rated voltage.

For a group of electric heating tubes connected in series to the power supply, the working voltage of the heating tubes refers to the voltage specified in the design when connected to this group of heating tubes.

This involves the issue of whether multiple heating tubes are connected in series or in parallel. So when our salesperson is communicating with the customer about the voltage, if multiple heating tubes need to be connected, we need to ask the customer whether it is a series or parallel connection method when returning, so that we can determine the voltage of a single heating tube.

If the customer or our salesperson is not clear about the rated voltage and working voltage, there may be two situations when using it improperly. One is that the heating tube does not generate heat because the resistance of the heating tube is constant. If the voltage decreases, the power will decrease, so the heating tube may emit minimal heat. Another way is that the temperature of the heating tube is very high and it suddenly breaks down. Similarly, the resistance of the heating tube remains constant, and as the voltage increases, the power increases, causing the stainless steel heating tube to exceed the standard and even break down.

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