a. It should not be
located in a room without an external wall, creating favorable conditions for
the hot air duct and the exhaust pipe to extend outside;
b. Try to avoid the main
entrance, facade and other parts of the building, so as to avoid the impact of
smoke exhaust and air exhaust.
c. Pay attention to the
impact of noise on the environment;
d. It should be close to
the substation of the building, which is convenient for wiring, reducing power
loss and facilitating operation management;
e. It should not be
located directly below the toilet, bathroom or other places where water is
often accumulated.
Layout of equipment in
the machine room: The equipment layout shall be based on the unit capacity and
number of units, and shall be compact, economical and reasonable, safe and easy
to maintain.
When there is only one
unit in the generator room, if the unit capacity is 500kW or less, there is
generally no control room. At this time, the power distribution screen and
control panel are conveniently arranged on the generator end or the generator
side. The requirements for its operation and maintenance channel are that the
screen front distance from the generator end should not be less than 2m, and
the screen front distance from the generator side should not be less than 1.5m.
For multiple units with
a single unit capacity of 500 kW and above, a control room should be provided
taking into account the convenience of operation and maintenance, management
and centralized control. Generally, the generator control panel, the unit
operating platform, the power control (screen) station, and the lighting
distribution box are placed in the control room. The layout of the control room
is the same as the technical requirements of the layout of the low voltage
distribution room.
In the machine room, the
unit should be arranged horizontally (vertically), so that the center line of
the unit is perpendicular to the central axis of the machine room, easy to
operate and manage, short in pipeline and compact in layout. When the generator
room is placed adjacent to the control and power distribution room, the
generator outlet end should be arranged near the control and power distribution
room.
Selection and laying of
power distribution wires in the machine room: power cables or insulated wires
should be selected according to the wet environment in the diesel generator
room; the lead wires from the generator to the power distribution screen should
be copper core cables or closed bus bars; strong electric control measurement
lines and excitation lines should be the copper core control cable or the
copper core wire; the control wiring, the excitation wiring and the power
wiring should be laid underground or laid along the cable trench, and the
excitation line and the main line can be worn in the same pipe when the steel
pipe is used for power distribution. The fixed lighting of the diesel generator room shall be connected to the emergency power supply.
Grounding of the machine
room: Three types of grounding are generally applied to the diesel generator
room:
a. working grounding:
grounding of the generator neutral point;
b. protective grounding:
grounding of the metal shell with normal electrical equipment without
electricity;
c. anti-static
grounding: grounding of the fuel system equipment and pipeline.
Various groundings can
share the grounding device with other groundings of the building, ie, a joint
grounding mode.
Storage of fuel: there
should be a daily fuel tank for 8 hours of continuous operation in the
generator room or in the oil storage room. However, when the oil volume exceeds
100L, it should be placed in the special oil storage room with a fireproof
partition wall in the machine room
The above information is shared by Jiangsu Starlight Electricity Equipments Co.,Ltd.
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