Shanghai Safety Standard Electric Heating Tube Rapid Life Test Device

Shanghai Safety Standard Electric Heating Tube Rapid Life Test DeviceShanghai Safety Standard Electric Heating Tube Rapid Life Test Device
Overview
This device is specifically designed for rapid life testing of tubular electric heating components. The testing method of the device is based on the electric heating technology information provided by Kantar, a Swedish company. The known parameters are: the rated working voltage of the tubular electric heating component is U (volts); The rated power of tubular electric heating elements is P rated (watts). parameter setting value
1) Take the input test power to reach 5 times the rated power: that is, P test=5P rating. Therefore, in order to meet the requirements of the above equation,
Input the test voltage U=5 U, this value is calculated.
2) Connect the above test voltage to the output terminal of the electric heating element and ensure a power on time of 0.4 seconds.
3) Then, when the power is cut off for 0.8 seconds, repeat the above experiment, and continue the experiment until the power is turned on and off
The number of power outage cycles.
4) The above-mentioned electric heating elements are placed in a predetermined medium for heating tests.
Conclusion: The above power on time of 0.4 seconds plus power off time of 0.8 seconds is taken as one cycle, that is, each cycle is
0.4+0.8=1.2 seconds, and represents an actual lifespan of one hour when heated in the specified object. If after 3000 times
After the cyclic test, the resistance of this electric heating element is broken (damaged), indicating that the element is in the same geometric dimensions, electrical parameters, and
After heating in the simulated operating conditions, according to the Swedish Kantar data test regulations, the service life of the electric heating element is 3000 hours, which is accurate
The rate is 95%.
In order to meet the service life standard of JB/T2379-93 tubular electric heating elements of ≥ 3000 hours, that is, according to the above calculation
Calculation method test, as long as the time for rapid life test ≥ 3000 times is met, that is, 3000 times x 1.2 seconds/time=1
Hours, which means 3000 hours of power on and off cycles, can be used to determine the performance of this batch of tubular electric heating elements in just 1 hour
The service life can reach ≥ 3000 hours. This test method is applicable to any form of tubular electric heating element.
2 2 Technical indicators
2.1 Output voltage: adjustable from 30V to 520V
2.2 Output power: 15KVA
2.3 Three sets of telecommunication components can be tested simultaneously, with each test current ranging from 1.5A-30A.
2.4 Three windows display the number of cycles and lifespan of three channels respectively.
2.5 cycles: 0~99999 times, with a lifespan of 0~99999 hours.
2.6 Power on time: 0.4s, disconnect 0.8s.
2.7 Input power supply: 380V (three-phase four wire).
2.8 Dimensions: l × b × h, mm
700 × 700 × 1200 (including wheels)
2.9 Weight: 100kg