Professional Custom Lamp Holder Accessories Manufacturer

 Fixed parts of the insulation of the lamp holders and external electric shock insulation components, should be able to withstand the glow-wire test GB / T 5169.10 provides:
The sample for the finished lamp. To test unrelated parts removed from the lamp, but must ensure that the basic conditions of the test conditions and practical.
The sample was mounted on the stand, and 1N force is applied to the pressure at the top of the glow-wire, filament Preferably, the upper distance from the test piece of 15 mm or greater than 15 mm, while in the center of the test surface. Glow-wire penetration depth of the specimen to use mechanical method is limited to 7 mm.
Because sample is too small, and can not be tested by the above requirements, the desirable one of the same material as the test sample, the sample should be the square of 30 mm, its thickness is the minimum thickness of the finished sample.
The top of the glow-wire temperature of 650 ° C. 30 s after the sample away from the glow-wire.
Before starting the test, the glow-wire temperature and heating current constant of 1 min. However, to ensure that the thermal radiation during this period shall not affect the sample. Using the armored high sensitivity thermocouple wire to measure the temperature of the top of the glow-wire, thermocouple structure and calibration should be consistent with GB / T 5169.10 requirements.
Sample away from the glow-wire sample on any burning flame should be extinguished in the 30s, and burning the whereabouts of the material should not be ignited horizontally in the sample below, a distance of 200 mm ± 25 mm tissue paper.
The porcelain lampholders do not perform this test.