Siemens 3AH37 - Installation; Attachment in the Switching Cubicle

Installation
9229 9992 176 0D 43
2013-07-08
Installation
Attachment in the switching cubicle
The vacuum circuit-breaker is delivered in OPEN position. Before installing the
vacuum circuit-breaker, remove the transport aids (see “Unpacking (I)” on page 6,
“Unpacking (II)” on page 11 or “Unpacking (III)” on page 13).
Check data Before installing the vacuum circuit-breaker in a switching cubicle, check the details
on the rating plate (see “Rating plate” on page 34) in order to avoid confusion.
DANGER
High-voltage - danger to life
Touching live parts causes an electric shock.
• Do not touch live parts!
• When performing work on the switchgear, deenergise it and earth it.
• The work described in the following sections must only be performed when
the switchgear has been deenergised:
- Take safety measures to prevent reclosing.
- Observe industrial safety regulations.
- Ensure that the vacuum circuit-breaker is installed and commissioned only
by qualified personnel who are familiar with the operating instructions and
observe the warning notices.
WARNING
Risk of injury due to wrong transport means
Using wrong transport means may cause the vacuum circuit-breaker to fall and
injure persons.
• Observe weight
• Use means of transport suited to the requirements and load-carrying
capacity.
• The vacuum circuit-breaker must not fall over.
• Sharp edges may cause injury.
Note
For preliminary work, the vacuum circuit-breaker must be
• secured against falling over,
• placed onto a suitable support or
• suspended from a crane to prepare for installation.