What are the main contents on the nameplate of the LED explosion-proof lamp
Datetime: 2021-04-02 11:41:21
I believe that most of the operators who
have used LED explosion-proof lights know that there is a nameplate on the LED
explosion-proof lights, but how many people have actually seen what is recorded
on the nameplate of the LED explosion-proof lights? Today, we will introduce to
you what are mainly contained on the nameplate of the LED explosion-proof lamp.
1. Explosion-proof mark.
2. Basic signs: including product name, model,
manufacturer name, registered trademark, date of manufacture, etc.
3. Performance safety labels: including
rated voltage, current, nominal frequency, light source power and quantity,
allowable ambient temperature (the range is only -20~+40 degrees, not marked),
specific applicable environmental signs (if only applicable to A certain
explosive gas mixture product must be marked with the name or molecular formula
of the flammable gas, the classification mark of the lamp, etc.
4. The explosion-proof certificate number,
which proves that the product has been formally inspected by the
explosion-proof inspection station. Some products have an "x" symbol
after the explosion-proof certificate number, which indicates that the product
can only be used under certain special safe use conditions. The specified
conditions should be clearly and eye-catchingly indicated in the lamp housing
or product manual.
5. Additional explanation. In addition to
the above marks, the detailed instructions necessary to ensure correct
installation, use and maintenance should be given in the manufacturer\'s product
manual provided with the lamp, the ballast installed in the lamp, and the lamp.
(1) The allowable working position of
explosion-proof luminaires. Some explosion-proof luminaires are only allowed to
be installed and used in a certain position or a certain angle. This is because
of the change of working position, the heat distribution on the surface of the
explosion-proof luminaire and high surface temperature will occur. The main
reason for the limitation of the working position of explosion-proof lamps is
to control the high surface temperature so that it does not exceed the temperature
group marked by the explosion-proof lamps itself, resulting in dangerous
temperatures. In addition, the change of the working position will also affect
the life and performance of some light sources, as well as the insulating
materials, electrical components, and insulation performance of the different
wires of the lamps and lanterns, as well as the life. Therefore,
explosion-proof lamps with restrictions on the installation and use positions
must be clearly stated.
(2) In order to reduce the high surface
temperature of the explosion-proof lamps and reduce the product temperature
grouping level, the design and selection of special specifications of the
explosion-proof lamps must indicate the name of the light source, the model,
the shape and size of the bulb and the manufacturer. If not specified, when the
user changes to other bulbs of the same power, the high surface temperature of
the explosion-proof lamps may exceed the ignition temperature of the explosive
gas mixture in the use environment, posing an explosion hazard.
(3) Under the unfavorable conditions of
normal operation, if the insulating material of the power cable or wire is
subjected to high temperature in the lamp, if it exceeds 80 degrees, it should
be marked so that the corresponding cable and wire can be selected. When there
are special requirements for incoming cables or wires, the specification, model
and applicable temperature must be indicated.
(4) Lamps with accumulators must state the
type, nominal voltage and nominal capacity of accumulators to avoid loss and
danger.
(5) E For explosion-proof lamps with
condensing and similar performance, the short distance from the illuminated
object should be indicated to prevent the illuminated object from being
scorched and burnt.