Professional Custom Lamp Holder Accessories Manufacturer

B22 Base: is a lamp holder, lamp power line is connected to the end of the interface used for the lamp, the lamp is fixed to the holder, so that the lamp and the lamp connected to the power components. The main use of electric light lamp holder naming method. Related symbols meaning: B bayonet cap, B behind the numbers indicate the diameter of shell, such as: B22D/25 × 26 - refers to the two contacts with a diameter of about 22mm bayonet cap; total length of about 25mm, skirts diameter of about 26mm.
B22 lamp light source lamp with a lamp light source interfaces for B22, 22MM diameter of the lamp has two protruding card shoots for Snap B22 lamps interface. Is the most commonly used interfaces bulb.
Prevention of electric shock
Self-ballasted electrodeless fluorescent structural design shall guarantee not equipped with any auxiliary lamps shaped shell case, when the lights screwed into line with GB 17935 requirements lamp, touch the metal parts inside the lamp is less than or cap on the charged metal parts.
In Figure 1 provides the qualification test finger, if necessary, the applied force of 10 N.
Using screw cap lamps, and its structure should be designed to meet the general lighting (GLS) to prevent accidental contact with the bulb requirements.
Can make use of GB 1483-2001 in 7006-51A E27 lamp holder required for testing gauge to test their eligibility.
B22 lamp holder on the use of self-ballasted electrodeless fluorescent lamp using the same inspection requirements and inspection requirements incandescent same.
In addition to head-carrying metal parts on the outside, lamp external metal parts should not be charged or easily charged. For testing, any conductive material should be removable without the use of a tool, the place where the most unfavorable.
With insulation resistance and dielectric strength test (see Chapter 7) to test their eligibility.
Wet insulation resistance after treatment and dielectric strength
Carrying metal parts of the lamp and the lamp may be accessible parts, have sufficient insulation resistance and dielectric strength.
Insulation resistance
Lights should be at a relative humidity of 91% to 95% of the wet box placed 48 h, inside air temperature should be controlled at 20 ℃ ~ 30 ℃ on any value between the temperature difference within 1 ℃.
The insulation resistance shall be measured in a wet chamber, first applied in light of the DC voltage of about 500 V, 1 min after the beginning of the insulation resistance test. Lamp-carrying metal parts and can be touched to the lamp assembly (the test of the lamp may touch the insulating member to a metal foil packet) between the insulation resistance of not less than 4 MΩ.
Note: Bayonet lamp housing and the insulation resistance between the contacts being studied.
Dielectric strength
Dielectric strength test immediately after the insulation resistance test. Test, in applying the provisions of the following parts of AC voltage test 1 min.
ES Base: screw base lamp housing and other parts can be touched between the (accessible to the insulating member of a metal foil package):
HV-type (220 V ~ 250 V): 4 000 V (rms)
BV-type (100 V ~ 120 V): 2U +1 000 V
U = rated voltage
During the test, lamp housing and the center electrode should be short-circuited.
Initially, the applied voltage does not exceed half the value of the specified voltage, and the voltage gradually increased to the predetermined value.
Test shall be carried out in a humid chamber, the test does not allow arcing and breakdown phenomena.
Metal foil and the distance between current-carrying parts are being studied.