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5.2.6 cable into the line should be entered through the roof rack, unless
accompanied by overhead cabinets located in the equipment room floor. Such as
With overhead cabinets located in the equipment room floor, due at the end
of the cable into the cabinet line-bit.
5.2.7 Cabinets screwdriver bolt
should be firmly on the ground.
5.2.8 All protective shield for the shell
and the accessories for the manufacture of standard models.
5.2.9 of the
cabinets should be low in the former covered with two back-up in accordance with
GB1002-1996 of the 10A,
Standard 220V outlet. This socket should be
connected to 220VAC power supply equipment, power supply socket and from
contractors
Contractors.
5.2.10 equipment cabinets to be installed at
depths exceeding 800mm internal fluorescent lighting, automatic door
Bright
lighting for inside maintenance.
5.2.11 should pay particular attention to
the cooling rack, such as exhaust fans should be located in the cabinet in order
to ensure that the equipment cabinets in the
Environment acceptable, even
when the failure of air-conditioning equipment cabinets can function properly.
For
Contractor should be submitted to the temperature inside the equipment
cabinet, the cabinet can be to prove that the maintenance of equipment within
temperature specification
Temperature for the engineer for approval.
5.2.12 equipment layout should enable every pieces of equipment removed from
the external touch and get to replace.
5.2.13 regardless of color and trim,
cabinets, enclosures and other under the protection of public areas and
materials should be exposed near the
Consistent with the built environment,
which meet the requirements may be the difference between the various stations.
These were exposed
The color and finishing materials of the samples should
be submitted to the production of the project engineer for approval.
5.2.14
Except as otherwise provided, in the tunnel, station hall, the entrance of the
site and the installation of the equipment, components, cables and distribution
Items should be non-reflective nature.
Electronic assemblies and
components 5.3
5.3.1 Each insert components or printed circuit boards must
be able to insert the main system strong, and with the support structure to a
fixed
Components or circuit boards. In addition to computer equipment, the
port can not use print.
5.3.2 the need for printed circuit board thickness
sufficient to ensure its mechanical strength, to avoid the installation and
maintenance of
Circuit board damage.
5.3.3 according to the standard
printed circuit board design and production, including the conductor of the
standard thickness, width and spacing
And so on. Equipment under different
circumstances need different criteria selected.
5.3.4 Printed circuit board
can not use the jumper circuit.
5.3.5 plug-in module to be obvious to all
easy to identify, label module module need to include the name, part number,
serial
And its revised version number.
5.3.6 plug-in module or printed
circuit board LED display devices need to show the power and intelligence
components of the work
Status. LED display devices to be visible.
5.3.7
for static sensitive electronic components needed to take appropriate protective
measures.
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