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61 LIGHT & FLASHLIGHT

The IP Protection Index ความหมายและนิยามของการปองกันฝุนละออง และน้ำ

The IP Protection Index is an international standard. This index classi es the
level of protection o ered by equipment against intrusions by solids (e.g. dust)
and liquids (e.g. water, oil).

How do you read the protection index?
Example: IP 67
The rst number indicates protection against solid objects.
The second number indicates protection against liquids.
The IP 67 notation therefore corresponds to a completely dustproof product
that is protected against the e ects of immersion in liquid.
Note: When a criterion has not been tested, the number is replaced by X
(e.g., IP X6 indicates that the product has not been tested for solids).

มีระดับ 0-6 : ใชในการปองกันฝุนละออง
IP X X

มีระดับ 0-8 : ใชในการปองกันน้ำ
(คาระดับยิ่งมาก ความสามารถปองกันฝุนและน้ำสูง)

The rst number indicates protection against solid objects: The second number indicates protection against liquids:
X = Not measured — X = Not measured —

0 = Not protected — 0 = Not protected —

1 = Protected against projection of solids ≥ 50 mm in 1 = Protected against vertically falling water drops
diameter

2 = Protected against projection of solids ≥ 12.5 mm in 2 = Protected against water drops (15° from vertical)
diameter

3 = Protected against projection of solids ≥ 2.5 mm in
diameter 3 = Protected against rain (60° from vertical)

4 = Protected against projection of solids ≥ 1 mm in 4 = Protected against sprayed water
diameter

5 = Protected against dust (limited ingress, no harmful
deposits) 5 = Protected against jets of water

6 = Completely protected against dust 6 = Protected against forceful hose-projected water

7 = Temporary immersion (-1 meter for 30 minutes)

8 = Prolonged immersion (deeper than 1 meter for
period de ned by manufacturer)

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