Degree of Protection
IP - 6 6 G
Protection Specification Code (International Protection) (IEC529)
Protection against solid foreign objects
Protection against harmful ingress of water
Japan Electrical Manufacturers Association's standards (JEM1030)
Protection against oil
Protection Against Solid Foreign Objects
Grade
Protection
Criteria
5
Limited ingress of dust permitted (no harmful deposit).
Dust protected
6
Totally protected against ingress of dust.
Dust-tight
Protection Against Harmful Ingress of Water
Grade
Protection
Criteria
Examination method
5
Protectedagainstlow-pressure Spray water from all directions for one minute per m2 of external sur-
jets of water from all directions; face area and for a total time of no less than 3 minutes using the test
Housing jets from all
directions
limited ingress permitted.
device shown below.
12.5 l/min
2.5 to 3 m
Discharging nozzle dia.: 6.3
6
Protected against strong jets of Spray water from all directions for one minute per m2 of external sur-
water, e.g. for use on ship- face area and for a total time of no less than 3 minutes using the test
Strong hosing jets from all
directions
decks; limited ingress permit- device shown below.
ted.
100 l/min
2.5 to 3 m
Discharging nozzle dia.: 12.5
JEM Standards
Protection Against Oil
Grade
Protection
Criteria
Criteria
F
Oilproof
Protected against improper op- No penetration of oil to the extent of interfering with proper operation
eration due to oil drops or spray after dropping the specified cutting oil on a test device for 48 hours at
from any direction.
a rate of 0.5 l per hour.
G
Oil resistant
Protected against penetration No penetration of oil after dropping the specified cutting oil on a test
of oil drops or spray from any device for 48 hours at a rate of 0.5 l per hour.
direction.
Total Counter/Time Counter H7GP/H7HP
C-59