First, structural inspection
Lighting fixtures inside and outside design is reasonable, such as the distance between the two contacts is large enough not to cause breakdown; replacement parts (bulbs) easy to replace, will not be dangerous; wire can not be arranged in sharp corners, interface, or light emitting parts, in order to avoid the friction of the insulated wire; metal mounting nut can not cross the line parts.
Second, the insulation properties
Electric shock rating, the lamp holders can be divided into Ⅰ, Ⅱ type, Ⅲ class.
Class I: not only basic insulation, as well as the ground wire ACCESSIBLE conductive parts in the basic insulation is invalid without conductive dangerous.
Class II: basic insulation and double insulation or reinforced insulation security measures.
Class Ⅲ: safety extra-low power to prevent electric shock. Safety Extra Low Voltage 42V to Under voltage.
Third, the temperature rise test
Temperature test is relatively complicated and time-consuming one test, but is essential. Point of the experiment heated up to the position of cloth, such as a wire connector, bulb contact parts, screws, etc., test the temperature rise curve points. In the experiment, the lamps easily accessible parts, insulating materials, the internal wiring or installation environment can affect the safety temperature is formed.
Temperature experiment as well as non-normal work state, measuring the temperature rise of the lamps in the simulated fault conditions, its purpose is to ensure that the family use foolproof. In this case, the member of the lamp, the temperature of the surface of the internal wiring and installation can not exceed a standard value.
Fourth, the durability test
Lamp durability test is also provided for one of the test project, lamps continuous work. Quantitative indicators for different products, such as incandescent as 240 hours, the fluorescent lamp 168 hours, with specific reference to the standard requirements.
, Outdoor lights IP test
Outdoor lights, garden lights, street lights, flood lights, pool lights must also IP test. IP level is dustproof and waterproof rating of electrical equipment is composed by two code:
Said one prevent solid foreign objects to enter inside the device:
The second bit of code indicates prevent water.
IP rating of the outdoor lights are usually at least meet the requirements of IP3.
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