00193437-03_AI_PowerSupplyConversion_DE+EN.pdf - 第151页
Assembly Instructions, Converting the Powe r Supp ly 2 Safety check to DIN EN 60 204 12/2013 Edition 2.4 High-voltage test 149 2.3.3 Performing the insulation test Create a test set-up as illustrated in figure 2 - 3 . …
2 Safety check to DIN EN 60 204 Assembly Instructions, Converting the Power Supply
2.3 Insulation test 12/2013 Edition
148
2.3 Insulation test
2.3.1 Permissible minimum insulation resistance
The insulation resistance is measured at 500 VDC between the conductors of the main power cir-
cuits and the protective earth conductors. 2
The permissible minimum insulation resistance is > 1.0 MOhm. 2
PLEASE NOTE:
All the electrical connections must be fully installed on the machine, including those for the power
supply. 2
2.3.2 Insulation testers
2
2
Available testers
– GOSSEN-METRAWATT 204P (0.05 - 50 MOhm)
– METRAMACHINE 204/2,5 (complete system for tests to EN 60204-1
(VDE0113) consisting of Profitest 204, Profitest 204 HP, Signal 204,
Leadex 204, and Caddy 204
Measuring range 0.4 - 10 MOhm
Measuring voltage 500 VDC
Tab. 2 - 1 Insulation testers
Assembly Instructions, Converting the Power Supply 2 Safety check to DIN EN 60 204
12/2013 Edition 2.4 High-voltage test
149
2.3.3 Performing the insulation test
Create a test set-up as illustrated in figure 2 - 3.
Follow the instructions in the manual for the testing device.
Measure the insulation resistance at 500 VDC.
Enter the measured value into the test report.
If the measured value is > 1.0 MOhm, the machine has passed the insulation test and can be
released. If the measured value is smaller, the error must be eliminated and the test repeated.
Fig. 2 - 3 Insulation test set-up
2.4 High-voltage test
2.4.1 Minimum durations and voltages for the high-voltage test
The electrical system must withstand a test voltage applied between the conductors of all the
power circuits and the PE conductor system for at least 10 seconds. 2
The test voltage must 2
– be twice the rated voltage for the electrical system or 1000 VAC (Canada: 1500 VAC), which-
ever is the higher.
– have a frequency of 50/60 Hz and
– be powered by a transformer with a minimum rated output of 500 VA.
2
PE
N
L3
L2
L1
L1
L2
L3
N
PE
METRAWATT
tester
METRAWATT 204P, METRAMACHINE 204
grounding socket
three-phase current plug or
Distributor box with
Power cable
Probe tips
Machine,
WPC
CO table,
supply for
Power
2 Safety check to DIN EN 60 204 Assembly Instructions, Converting the Power Supply
2.4 High-voltage test 12/2013 Edition
150
WARNING 2
Parts of the system that are not rated for the test voltage must be disconnected. This particularly
applies to the monitor. 2
2.4.2 High-voltage testers
2
2.4.3 Performing the high-voltage test
– Disconnect the monitor.
– In the distributor box, connect the three-phase AC socket or socket with earthing contact to the
power cable for the machine, component table or MTC/MTC2. The test set-up is shown in fig-
ure 2 - 3
.
RISK OF DEATH 2
To protect the test set-up, you will need 2
a barrier chain
a red flashing light to signal the high-voltage tests and keep unauthorized personnel away from
the system.
Switch on the testing device and measure the equivalent leakage current with the following set-
tings:
- 1000 VAC (Canada 1500 VAC)
- Test duration 10 sec.
Measure the equivalent leakage current (active or apparent current).
Available testers
– GOSSEN-METRAWATT 204P
– METRAMACHINE 204/2,5 (complete system for tests to EN 60204-1
(VDE0113) consisting of Profitest 204, Profitest 204 HP, Signal 204,
Leadex 204, and Caddy 204
Power output 500 VA
Test duration 10 seconds
Tab. 2 - 2 High-voltage testers