The definition of LED lighting’s Grade of protection

- Jun 30, 2017 -

The composition and meaning of IP waterproof grade Code.

The composition of IP code:IP22)32)CM,

Letter code (International Protection)------------

The first number(0~6 or letter “x”)-------

The second number(0~6 or letter “x”)-------

Additional letter(optional)(A、B、C、D)-----

Supplementary letter(optional)(M、S)---

Letter(k)-----

If it is not requested specified characteristic number,it will replace by letter “X”.

If two letters,the lines are omitted,and show it with “XX”.

The additional and supplementary letters will be omitted,not need to be replaced.

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Stand for waterproof grade

Stand for dustproof grade

Stand for protection grade code


The name and definition of LED lights’ protection way and protection grade.

Prevent solid impurity(including dust) from going into the body(dust proof);

Prevent the water from going into the body(waterproof);

Prevent the person body from touching the inner dangerous parts.(avoid touching).

Test each protection request,make sure the housing meets all the protection requests.


Waterproof protection grade

Auto waterproof grade of protection and corresponding fixed place.


Auto Type

Fixed Place

Water Influence

The 2nd characteristic number/supplemental letter

car

Passenger carriage

No special influence

0

Engine bay with the downward opened cover

No influence by spraying water and splashing water,just slight spray on subordinate parts.

3

Engine bay with the downward opened mouth,the protected part

Indirectly influence by spraying water and splashing water after turning direction

4

Engine bay with the downward opened mouth,the exposed part

Directly influence by spraying water and splashing water

4k

External structure

Directly influence by spraying water and splashing water

4k

Bus,truck, specialized vehicles, trailer

Passenger carriage,cage

No special influence

0

Front position engine bay,protected part,closed black position engine bay.

Indirectly influence by spraying water and splashing water after turning direction

4

Front position engine bay,exposed parts,no protect the bottom of a chest.

Directly influence by spraying water and splashing water

4k

Suffer strong spraying water,such washing,fixing,inspecting

Estimated suffer specially strong pressure spraying water

6k

External structure

Directly influence by spraying water and splashing water

4k

Tractor and trailer

Instrument panel with top

No special influence

0

Instrument without top

Raining influence

3

All the without covered parts(exclude Instrument Panel)

Directly influence by spraying water and splashing water

4k

Motorcycle

Protected parts

Raining influence

3

Protected parts

Directly influence by spraying water and splashing water

4k

Steering gear,Instrument panel,under car frame

Water pressure in driving

6,7 or 8

All the parts exclude passage carriage

High pressure or spraying steam

9k


The 2nd characteristic number/supplemental letter

Prevent entering

request

0

No protection

no

1

Dipping water:vertical

vertically dipping water no harmful influence.

2

Dipping water:15゜

vertically dipping water no harmful influence.

3

Spraying water

Spray water in the scale of 60゜,all the vertical faces no harmful influence

4

Splashing water

Toward housing splash water from all the directions,no harmful influence

4k

Jetting water

Toward housing jet water,no harmful influence.

5

Spraying water

Toward housing spray water,no harmful influence.

6

Strongly spraying water

Toward housing strongly spray water,no harmful influence.

6k

High press and strongly spray water

Toward housing high pressure and strongly spray water,no harmful influence.

7

Soaking in a short time

Soaking into specified pressure water and specified time,the water inflow goes into housing,no harmful influence.

8

Soaking continuously

Soaking continuously  into specified condition,the water inflow no harmful influence.

9k

High pressure/steam spray washing

Toward all the direction spray water with strongly high pressure,no harmful influence.

No specified without supplemental letter waterproof protection of grade 9.