E M A X LI N K 2 A B B R E V I ATE D
LV S W I TC H G E A R A P P L I C AT I O N G U I D E
13
1. Before beginning the installation, ensure that
you have all necessary components:
• Switchgear sections
• Fastener hardware to connect sections
• Shipping split connection hardware
2. Check that all components are in good condition.
If there is any evidence of damage to the
equipment, contact an ABB representative to
evaluate the condition of the equipment before
proceeding with installation.
3. Carefully review all supplied project drawings
and notes to familiarize yourself with the layout
and construction of the switchgear.
4. Based on the footprint shown on the general
arrangement drawings, mark the floor for all
drill holes necessary to fasten the switchgear
or base frame to the floor, and for cable conduits
(if applicable). See Fastening Sections to a
Base Frame.
5. Install power and secondary (control) conduits
before moving the switchgear to the site. The
available space for conduits appears on the floor
plans supplied with the switchgear. Conduits
should not extend more than 1.0 in (24 mm)
above floor level.
Installation location requirements
The installation must meet the following
requirements:
• Indoor location protected from moisture and
dramatic temperature changes. For longest
equipment life, install the switchgear in an
enclosed room with temperature and humidity
control and filtered, and forced air ventilation.
• Level the site, preferably including a base frame
that is either embedded in the concrete floor or
rests on a false floor on supports. The floor must
be straight and level to +/- ¼ in (6 mm) over the
entire length of the line-up.
• Prepare proper openings in the floor, wall and
ceiling for cables, conductors, pipes, bars and
ventilation in accordance with the construction
drawings provided.
• Allow at least 2.5 ft (750 mm) from the top of the
highest section to the ceiling, and at least 3.0 ft
(920 mm) between the left and right end sections
and the walls.
• Allow at least 3.5 ft (1066 mm) between the unit
and the rear wall.
—
Installation guidelines
Clearances – front view
Clearances – side view
• For sections with left-mounted doors, provide at
least 3.0 ft (920 mm) between the left wall and the
left-end section so the doors can be opened more
than 120°.
• Ambient temperature is to be above -22 °F (-30 °C)
but not exceeding 104 °F (40 °C) at 90% non-
condensing humidity. If ambient temperatures
below 23 °F (-5 °C) will be experienced while in
service, the manufacturer should consider addition
of space heating or other means to help enable
proper circuit breaker operation.
• Allow sufficient space for future expansions,
if required
• Supporting brackets, beams, enclosures and
foundation frames should be painted or treated
with a corrosion-resistant coating. To facilitate
installation and maintenance, the site should
also have:
- Convenient alignment with other equipment.
- Accessibility for maintenance.
- Adequate lighting.
- Free access to the electrical equipment rooms.
Keep Area Free
3 ft Min.
(915 mm)
3.5 ft Min.
(1066 mm)
10 f
t M
in
.
(3
0
4
8 m
m)
12 f
t M
in
.
(3
0
4
8 m
m)
Front
Rear
3.5 ft Min.
(1066 mm)
3 ft Min.
(915 mm)
Keep Area Free
