Five tests teach you how to choose a better silicone oil drum heater

Five tests teach you to choose a better silicone oil heater. Silicone rubber waterproof heating pad is a type of thin sheet that generates heat when energized. The core is made of nickel chromium wire or nickel chromium foil etched into a certain shape, so it has high reliability. It is generally printed on insulation materials with any paste such as graphite paste and resistance paste. In recent years, due to the greenhouse effect, the temperature of the cabinet dehumidifier heater has been increasing year by year, and the atmospheric environmental factors have gradually deteriorated, such as high temperature, high humidity and other variable climates, making the threat to indoor power distribution facilities increasingly apparent. The silicone rubber heater is mainly composed of nickel chromium alloy heating wire and silicone rubber high-temperature insulation layer. The high-temperature insulation layer of silicone rubber is a thin sheet (with a standard thickness of 1.5mm) composed of silicone rubber and glass fiber cloth, and the silicone rubber heater has good flexibility.

1. Conduct electrical strength testing.

A good product should be able to withstand a voltage of 50Hz for a short period of time under the electrical strength of cold state and working temperature. After cutting off the current for 5ma, there was no breakdown or flashover.

2. Conduct overload experiments.

Under exothermic conditions, power on the rated output power of 1.27 for 1.5 hours, cut off the cooling system, and conduct this hype 30 times through repeated data to see if there are any problems with the silicone rubber oil drum heater and if there is serious damage to the society.

3. Conduct leakage current experiments.

Place the silicone oil drum heater under heating conditions and supply power at 1.15 voltage. If the leakage current is less than 0.5MA, then this is a good product.

4. Conduct a sealing test.

This sealing test is mainly aimed at the silicone rubber oil drum heater shell. Place it in acidified water and expose both ends to see if its performance meets the requirements of items 1 and 3.

5. Test the sealant.

The main performance requirements are the same as the fourth item, but the experimental conditions are different. The experimental conditions are to place the product in an environment with a temperature of 60 degrees Celsius and a humidity of 95%.