ABB MNS-MCC, Инструкция по установке, эксплуатации и обслуживанию

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23 I N S TA L L AT I O N , O P ER AT I O N S A N D M A I N T EN A N C E M A N UA L
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29
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28
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28 Frame connection
using spacer bolts
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29 Tighten the bolts
Recommendations
• Supporting brackets, beams, enclosures and
foundation frames assembled and painted or
treated with other corrosion-resistant coating.
• Adequate lighting.
• Free access to the electrical equipment rooms.
Installation guidelines
Warning:
Follow all instructions related to
the installation of the MCC to avoid
potentially hazardous situations that could
result in death or serious injury.
• Use appropriate personal protective equipment
(PPE) and follow the safe electrical rules and work
practices for electrical installations as described
in standard NFPA 70E, and any other local safety
rules and practices.
• The MCC must be installed, operated and
serviced only by qualified personnel.
• If the installation is being done near operational
equipment, it may be appropriate to erect
temporary barriers between that equipment and
the MCC.
• If you are adding sections to an existing MCC,
turn off all power supplying this equipment
before working on it.
• Always use an appropriate voltage-sensing device
to confirm that the power is off prior to installing
or working with the MCC.
• Follow appropriate Lockout/ Tagout procedures.
Section installation sequence
Sections can be installed or added in any order,
and new sections may be added between existing
sections. If the sequential order designated during
manufacturing is altered on site by adding sections
to an existing lineup, the main bussing must match
and the related drawings updated. When adding,
removing or rearranging sections, do not exceed
the maximum amperage available on the horizontal
busing.
Installing and connecting shipping splits
a. Position the shipping splits in their final
arrangement and location. Connecting the
sections together before attaching them to the
floor (or wall) will simplify splicing the horizontal
bus.
If doors won’t close easily, or panels are twisted or
stressed, this may indicate that the site is not
leveled. You may be able to shim the sections to
level the site as necessary.
b. Connect the sections together, you can begin the
installation at either the left or the right end of
the lineup by connecting the frames of the
sections together. The left side of each frame is
fitted with threaded inserts. Sections are fitted
on the right side with the necessary screws.
Insert the bolts from the left side of one frame to
the inserts in the adjoining section to the right.
Section 1
Socket head
screw
Bolt hole 2187.5
mm from
bottom (front
and rear of
the section)
Bolt hole 112.5
mm from
bottom (front
and rear of
the section)
Bolt hole 1212.5
mm from
bottom (front
and rear of
the section)
Bolt hole 1012.5
mm from
bottom (front
and rear of
the section)
Section 2
C-Profile
section 1
C-Profile
section 2
Socket head
cap screw
M6-1.0x20
Conical
spring
washer M6