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SECTION 7
Prot
ec
tive
Cons
tr
uct
io
n
CIDRW System
User’s Manual
SECTION 7
Appendix
Protective Construction
IP-
is governed by the test methods described below. Check in advance the seal characteristics under
the actual environment and conditions of use.
IP is the abbreviation of International Protection.
■
IEC (International Electrotechnical Commission)
Standard (IEC60529: 2001)
(A) First numeral in code: Class of protection against entry of solid foreign material
(B) Second numeral of code: Class of protection against the entry of water
Class
Degree of protection
0
No protection
1
Protected against access by solid objects with a diameter of 50 mm or greater (e.g., human hands).
2
Protected against access by solid objects with a diameter of 12.5 mm or greater (e.g., fingers).
3
Protected against access by wires and solid bodies with a diameter of 2.5 mm or greater.
4
Protected against access by wires and solid bodies with a diameter of 1 mm or greater.
5
Entry of volumes of dust that would cause difficulties in normal operation of devices or compromise
safety is prevented.
6
Entry of dust is prevented.
Class
Degree of protection
Outline of test methods (tests using water)
0
No special protection
No protection against the
entry of water.
No test
1
Protection against droplets
of water
The product suffers no ill
effects from droplets of water
falling vertically onto it.
Water droplets are
sprayed onto the product
from directly above for 10
minutes by water droplet
exposure test apparatus.
2
Protection against droplets
of water
The product suffers no ill
effects from droplets of water
directed at it at an angle of up
to 15
°
to vertical.
The water droplet expo-
sure test apparatus is set
to 15
°
from vertical and
water droplets sprayed
onto the product for 10
minutes (total of 25 min-
utes in each direction).
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