Explosion-proof structure of LED tri-proof lamp electrical equipment and lighting fixtures
①The selection of LED tri-proof light parts should be conducive to inspection, maintenance or replacement.
②Try to avoid gaps, blind spots and indoor spaces where water and dirt are stored, and sufficient drainage pipe holes should be set in places where water is likely to be stored.
③ The inner wall and buried holes should be designed as buried holes as much as possible, which is conducive to drainage pipes and removal of moisture.
④ Prevent different metal materials from touching each other and prevent thermocouple erosion. cannot
When preventing, use metal composite materials or coatings that are allowed to touch, especially when fully immersed in aqueous solution, the two metal materials are not allowed to come into direct contact.
When it is necessary to use the structure, it can be adopted according to the standards of application standards, design scheme regulations, conductivity regulations, convenient maintenance and low cost.
Use one or more of the following protective measures:
A use a metal material or coating that both allow touch to carry out the adjustment connection;
Apply grease to the theme activity position of B, and paint the non-theme activity position;
C use plastic material insulation layer;
D tightness.
LED tri-proof light factory
(1) Sites with flammable vapors
Excessive flammable gas mixed with the gas will cause an explosion accident or ignition, and the risk level can be determined according to the existence time and high incidence of the risk atmosphere.
divided into three.
Flammable gases include flammable gases and [the vapors of inflammable chemical substances], which are classified according to their flammability levels and explosion levels. Electrical Equipment
The structure of LED tri-proof lamp lighting fixtures should be determined according to the type of flammable gas.
In order to better prevent the electrical equipment of such sites from becoming the root cause of fire when the actual operation is incorrect or a safety accident occurs, the basis for
The type of flammable gas applied and the type of risk site, the selection of household appliances suitable for this standard
ready.
The explosion-proof structure and characteristics of LED tri-proof lamp electrical equipment and lighting fixtures shall be in accordance with the Japanese Industrial Standard (JIS) (15] and the electrical equipment of the processing plant.
According to the requirements of the explosion-proof manual, the construction method should be implemented in accordance with the requirements of the electrical equipment standard specification.
(2) Sites with a lot of smoke and dust refer to the risk sites with combustible smoke and dust, powdery explosives, and flammable smoke and dust.
A place where a lot of this kind of smoke and dust floats or scatters in the air may generate an ignition source or the risk of reaching an explosive concentration value. Electrical equipment suitable for this type of smoke and site should be selected.
