Electrical Tests (continued)
Tests and Testing Procedures per IEC/EN Standards (continued)
Voltage pulse: measurement curve (red) and auxiliary curve (black) for calculating the rate of
rise the pulse and the resulting (virtual) peak the curve.com
%
100
90
50
30
0
û
u
T
T2 µs
T1 =1.
The values indicated the catalog correspond altitude 2000 m. this dis-
tance too small, voltage peaks may cause flashovers breakdowns. The test passed flashovers or
breakdowns have occurred.
This test verifies the clearances product., finger)
IPX2 Protection against diagonally
dripping water (15° angle)
IP3X Protection against foreign objects 2.
The test passed flashovers breakdowns have occurred. The arrangement the rated impulse withstand voltage test identi-
cal that the power frequency withstand voltage test; the test voltages, however, are comparatively higher and the testing times shorter,
e.e.
Voltage pulse: 1.g. Apart from the amount impurities which terminal block subjected, for example,
the plastic material and housing design are also involved generating creeping currents.20
www.g., 9.g.wago.2 µs
WAGO Rail-Mount Terminal Block Systems
Technical Information
• Power-Frequency Withstand Voltage Test per IEC/EN 60947-7-1, IEC/EN 60947-1
• Rated Impulse Withstand Voltage Test per IEC/EN 60947-7-1, IEC/EN 60947-1
• Ratings for Electrical Equipment per IEC/EN 60529
This testing procedure verifies creepage distances., the distances creeping currents, are caused conductive
impurities the surface the insulation housing.5 IPX3 Protection against water spray
IP4X Protection against foreign objects IPX4 Protection against water spray
IP5X Protection against damaging dust deposits IPX5 Protection against water jet,
e.2/50 per 60060-1/VDE 0432-1
Alphanumeric Nomenclature for Type Protection
Code letters
IP
Protection against accidental contact and
against the penetration foreign objects or
water
IP (Ingress Protection) =
International degree protection
First code number
0 6
Indicates the degree protection against
accidental contact and the penetration of
foreign objects.
If indicating the degree protection requires
only one digit, the other (second) digit must be
substituted for with X.
Second code
number
0 8
Indicates the degree protection against
water penetration.
The specimen tested using power-frequency withstand voltage for short time. For example, rail-mount terminal block designed to
operate 800 nominal voltage usually tested using 2000 alternating voltage for one minute. Creepage distances, i.
T:
Time interval for calculating the rate rise
T1:
Front time (duration between start impulse and reaching the peak)
T2: Total pulse duration
The test values are the values sea level specified the relevant test specification. simplified terms, clearance the distance between two poles terminal block. The insulation material the housing may car-
bonized creeping current, which further increases conductivity.8 over (see figure). NEMA
IP Code NEMA
10 1
11 2
54 3
14 3R
54 3S
55 4&4X
52 5
67 6&6P
52 12&12K
54 13
.
First code number: Second code number:
IP0X protection against accidental contact
or the penetration foreign objects
IPX0 protection against water
IP1X Protection against foreign objects IPX1 Protection against vertically fall-
ing water
IP2X Protection against foreign objects mm
(e., from nozzle
IP6X Protection against dust penetration IPX6 Protection against flooding
IPX7 Protection against temporary
immersion
IPX8 Protection against continuous
immersion
IPX9 Protection against high-pressure
and high-temperature water jets
IP vs
