ABB UniSec Manual page 9

Switchgear ready for lifting: lifting hooks installed
Figure 19. 375 mm, 500 mm and 600 mm UniSec units
Figure 20. 750 mm UniSec unit
Lifting dimensions and angle
When lifting using a crane, proceed as follows:
a) Fit lifting ropes of an appropriate load capacity with spring
catches.
b) Keep an angle of at least 60° between the horizontal plane
and the ropes leading to the crane hook.
Figure 21. Dimensions and angles
CAUTION
Four lifting ropes of sufficient length must
be used when lifting several units or a
whole switchgear (4 units at the most, or a
maximum length of 2 m).
Lifting by crane
Figure 22. Lifting
Operations after lifting
a) Dismantle the lifting hooks.
b) The same hooks are used again for the next unit.
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