Ability to withstand power outages

Ability to withstand power outages

The component should withstand 1000 cycles of heat resistance testing under the specified test conditions and voltage without any damage

Bad;

2 Heating time

Under the test voltage, the time for the component to rise from ambient temperature to test temperature should not exceed 15 minutes;

3 Rated power deviation

Under sufficient heating conditions, the deviation of the rated power of the component should not exceed the range specified below;

± 10% for components with rated power less than or equal to 100W.

For components with a rated power greater than 100W, it is+5% to -10% or 10W, whichever is greater;

4 Leakage current

The cold leakage current, as well as the leakage current after water pressure and sealing tests, should not exceed 0.5mA

The thermal leakage current at operating temperature should not exceed the calculated value in the formula, but the maximum should not exceed 5mA

I=1/6 (tT × 0.00001)

I - Thermal leakage current mA

T - Heating length mm

T-working temperature ℃

When multiple components are connected in series to the power supply, a leakage current test should be conducted on this group of components as a whole;

5 Insulation resistance

The cold insulation resistance during factory inspection should not be less than 50M Ω

After the sealing test, the insulation resistance after long-term storage or use should not be less than M Ω

The thermal insulation resistance at working temperature should not be lower than the calculated value in the formula, but the minimum should not be less than 1M Ω

R="(10-0.015T)/t" × zero point zero zero one

R - Thermal insulation resistance M Ω

T - Heating length mm

T - working temperature ℃;

6 Insulation and withstand voltage strength

The component should be maintained for 1 minute under the specified test conditions and voltage, without flashover or breakdown;

7. Ability to withstand power outages

The component should be able to undergo 2000 power on/off tests under the specified test conditions without damage;

8 Overload capacity

The component should withstand 30 cycles of overload testing under specified test conditions and input power without damage;

There are many factors that affect the quality and service life of electric heating tubes, including

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