2.3
ELECTRIC INSTALLATION OF THE SAFETY SWITCHES
All the works concerning the electrical equipment should only be carried out by specialized electri-
cians, skilled workers.
Before beginning operations, turn off the power of all the parts of the plant.
When laying the connection cables, take care that:
• unipolar cables have a double coating;
• the use and laying of the cables are carried out according to the EMV rules and regulations.
The safety switches disconnect the safety circuit of the elevator plant.
The following safety switches must be connected:
Fig. 1
Overspeed governor type R3
Safety switch
Fig. 4
Tension weight with horizontal counterweight
complete with safety switch (only in the plants in
conformity to EN 81).
46
Safety
switch
Fig. 2
Overspeed governor type
R5-R5R-R5SP
Safety
switch
Fig. 3
Overspeed governor type
R6-R6R-R6SP
Safety switch
Fig. 5
Tension weight with vertical counterweight com-
plete with safety switch (only in the plants in con-
formity to EN 81).