00193437-03_AI_PowerSupplyConversion_DE EN - 第149页
Assembly Instructions, Converting the Powe r Supp ly 2 Safety check to DIN EN 60 204 12/2013 Edition 2.2 Testing equipment 147 2.2 T esting equipment 2.2.1 Three-phase AC socket with connecting cable for the insulation a…
2 Safety check to DIN EN 60 204 Assembly Instructions, Converting the Power Supply
2.1 Safety instructions 12/2013 Edition
146
2 Safety check to DIN EN 60 204
The safety check comprises: 2
– insulation test
– high-voltage test and
– PE conductor test on the machines and components.
2
To protect the test set-up, you will need 2
– a barrier chain
– a red flashing light to signal the high-voltage tests
– country-specific warning and identification signs to draw attention to the fact that work and
high-voltage tests are being carried out on the electrical system.
2.1 Safety instructions
RISK OF DEATH 2
Make sure that no unauthorized persons can come into contact with any parts of the machine.
Secure the testing area with a barrier chain and warning signs.
Also switch on a red flashing light during the high-voltage test.
2
Assembly Instructions, Converting the Power Supply 2 Safety check to DIN EN 60 204
12/2013 Edition 2.2 Testing equipment
147
2.2 Testing equipment
2.2.1 Three-phase AC socket with connecting cable for the insulation and
high-voltage test
For the insulation and high-voltage tests, you will need a three-phase AC socket with connecting
cable as shown in the following drawing. This is used to electrically connect the test piece to the
testing device in the distributor box. The ends of the cables may be plugs or sockets, depending
on the type of connection. 2
Fig. 2 - 1 Three-phase AC socket for the insulation and high-voltage test
2.2.2 Socket with earthing contact and connecting cable for the insulation and
high-voltage test
For the insulation and high-voltage tests, you will need a socket with earthing contact and a con-
necting cable as shown in the following drawing. This is used to electrically connect the test piece
to the testing device in the distributor box. The ends of the cable may be
plugs or sockets, depending on the type of connection. 2
Fig. 2 - 2 Socket with earthing contact for the insulation and high-voltage test
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