Siemens 8DB10 - Checking the Circuits of the Low-Voltage Equipment; Checking High-Voltage Connections; Checking Electrical Connections; Checking Protection against Environmental Influences

Installation
130/214 Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
29.3 Checking the circuits of the low-voltage equipment
➭ Check the current transformer circuits according to the circuit diagrams.
➭ Check the functions of all protection devices with a secondary test unit for relays.
29.4 Checking high-voltage connections
➭ Check the tightening torque of the fixing bolts of the cable plugs according to the
manufacturer's instructions.
➭ Check the earthing of the cable termination on all high-voltage cables.
29.5 Checking electrical connections
Checking device
connections
➭ Check the screw-type connections of the devices in the low-voltage compartment at
random with the torque wrench.
➭ Check the plug-in connections of the devices in the low-voltage compartment at random.
Checking auxiliary cable
connections
➭ Check auxiliary cable connections on devices and terminal blocks at random.
➭ Check all auxiliary cable connections on current transformer terminals including slides and
jumpers in the low-voltage compartment.
➭ Check the designation labels on the terminal blocks.
➭ Replace missing labels using the information given in the circuit diagrams.
29.6 Checking protection against environmental influences
For touching up doors and front parts there is a paint pen available.
➭ Touch up surface damages.
DANGER
The voltage transformer can explode!
➭ If the voltage transformer is short-circuited, there is risk of explosion.
Check the voltage transformer circuits up to the m.c.b. or the fuse for short-circuits.