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Installation
Important note: Note the following before installing:
Accessories
With the standard model, the following accessories are included in the scope of supply:
Ø Grading ring and struts (as applicable)
Possibilities for isolated installing:
Ø 3-hole mounting insulated Ø200 ... 276 mm [Fig. 10]
Ø 4-hole mounting insulated 200 × 200 mm² with screws M16 x 130 [Fig. 11]
Ø 4-hole mounting insulated 310 × 310 mm² with screws M20 x 140 [Fig. 12].
Possibilities for the terminals:
Ø terminal bolt, corrosion-resistant steel [Fig. 14],
Ø flat terminal, DIN, all hot-galvanised steel, [Fig. 15],
Ø flat terminal, NEMA, all hot-galvanised steel, [Fig. 16].
Place of installation
The range of protection offered by the arresters is restricted, which is why the surge arrester should be
installed as close as possible to that part of the system being protected. The distance between
grounded or live components and adjacent arresters or their control components should be selected on
the basis of the relevant regulations.
Note
The arresters must be installed or suspended vertically. If they need to be installed in a
non-vertical position, you should first contact the manufacturer.
Mounting the components
The individual components for mounting are shown in the drawing in [=> on page 15].
8
Warning
Before any work starts:
Ø
switch off and isolate
Ø
secure against reclosing
Ø
verity that equipment is dead
Ø
earth and short circuit the equipment
Ø
cover or fence off nearby live parts
Death, severe injury and considerable damage to
property and environmental damage may result if
the safety instructions are not followed.
Ø
Confirm that these safety measures have been carried out.
© Siemens AG • 07/2003
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