RFID System
Operation Manual
Section 7 Degree of Protection
Section 7
Appendix
163
■ JEM (Japan Electrical Manufacturers' Association) Standard JEM 1030: 1991
“A” conforms to the first and second numbers of IEC 60529.
Note: Degrees h, c, d, and e are also defined.
3 Protection against sprin-
kled water
Protects against sprinkled
water approaching at a maxi-
mum angle of 60 from verti-
cal towards the product.
Water is sprinkled at a
maximum angle of 60 to
the left and right from
vertical for 10 min from
the test machine.
4 Protection against water
spray
Protects against water spray
approaching at any angle
towards the product.
Water is sprayed at all
angles towards the
product for 10 min from
the test machine.
5 Protection against water jet
spray
Protects against water jet
spray approaching at any
angle towards the product.
Water is jet sprayed at all
angles towards the prod-
uct for 1 min per square
meter for at least 3 min in
total from the test
machine.
6 Protection against high
pressure water jet spray
Protects against high-pres-
sure water jet spray approach-
ing at any angle towards the
product.
Water is jet sprayed at all
angles towards the prod-
uct for 1 min per square
meter for at least 3 min in
total from the test
machine.
7 Protection underwater Resists the penetration of
water when the product is
placed underwater at speci-
fied pressure for a specified
time.
The product is placed 1
m deep in water (if the
product is 850 mm max.
in height) for 30 min.
8 Protection underwater Can be used continuously
underwater.
The test method is deter-
mined by the manufac-
turer and user.
(B) Degree of Protection Against Ingress of Oil
Degree Protection
f Oil-proof No adverse affects from oil drops or oil spray from any direction.
g Oil-tight No ingress of oil drops or oil spray from any direction.
Degree Protection Test method (with fresh water)
0.07l/min
2.5 to 3 m
12.5l/min
Discharging nozzle: 6.3 dia.
Discharging nozzle: 12.5 dia.
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