An electric fan is a blessing of science. During summer when
we feel hot an electric fan with its artificial winds refreshes us and makes cool.
An electric fan is simply an electric motor to which the blades are fixed so
that when the motor of the rotates the blades spared the air. There are three
different types of fans. These are(1)D.C table fan or ceiling fan,(2)A.C table
or ceiling fan, (3)A.C/DC table or ceiling fan. There is some different in the
mechanism of A.C fans form that of D.C. The rotating port of the A.C fan is
called rotor. And the stationary part of A.C .fan is called a starter or armature.
The speed of the fans is controlled by a
regulator. The main element of an electric ceiling fan are blade ,shank, motor,
black cover, head bolt .upper cover , capacitor, housing, split pin, hanging
rod etc. Now-a-days pedestal fan box fan and many other fans are generally used
.thus it is a great achievement of science. A electrical fan is a machine used
to flow within a fluid typically a gas such as air . The fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it is contained
within some form of house of case . This may direct the airflow or increase
safety by preventing objects form contacting the fan blades .most fan are
powered by electric motors , but other sources of power may be used. Electrical revolving blade fans are
made in a wide rang of designs.Ina home you can finds fans that can be put on
floor or table, or hung form the ceiling or are built into a windy. Basic
elements of a typical table fan blade base, armature angled motor blade motor
housing etc. Fans products air flow with high volume and low pressure, as
opposed to compressors which product . high pressure, as opposed to compressors
which produce high pressure ate comparatively low volume. A fan blade open rot
at whine exposed to an air stream, and devices that take advantage of this such
as often has designee, similar to that of a fan design .The industrials
revolution in the late 19th censure is built by in centrigul fan between has in 1998walter kobold invented HVLS calling
fan. Lifelong inventor boyar invented the HVLS calling difference in air temperature will affect
density of air and can be used to induce
air circulation through the mere
air mass this effect is so subtle and work at such law air pressures
that it does
Add caption
not appear to fit the definition of a fan technology however point
to the development of electric , can vocative
air flow was the primary method of including air flow in living spaces old
fashioned oil and cool furnaces were not electric and operated simply on the
principle of conversation to move the warm air. Outhouse commonly relying
simply enclosed air channel in a corner of the stricture to exhaust offensive odors
.
The
term electric means the system of electrical wires and components in a machine,
car, house etc. It is used for carrying an electric current to an appliance.
The regulation for electrical installation classify as indoor wiring ,outdoor wiring and temporary
wiring.
Indoor or outdoor wiring comprises
all the wires, cords and cables installing within a building together with their fixings and
their means of support and protection. Interior wiring can be installed either
unprotected or protected by the use of insulated wires. Such wiring can be
exposed or open or concealed (which is made under the plaster of the wall).
Outdoor wiring installed with
bear, protected or insulated wires and with cables which may be supported from
the outdoor surfaces of building walls, or strung on
Poles or the support. Temporary
wiring is installed or construction sites for lighting and other purposes and
is intended for a short period of service.
One type of wiring with which
most of us are familiar is that which uses insulated metal sheathed wire. The
commercial insulated metal –sheathed wire is rolled ups in a coil and supplied
in this form .This type consists of one or several insulated conductors
additionally provided with a common cost of insulating bacterial and a covering
metal.
When long lines of insulated
metal sheathed wire are to be installed , the electrical fitters usually take
wire directly off the coil. When short lines are to be installed the required length of the wire is measured out by
means of a rural and taking into account and making allowance
for the connection at branching boxes
etc. Cut of from the coil. Side nippers
are used for cutting the wire. Branch boxes, switches, and wall sockets are
fastened by means of wooden screws. The wire is securely fastened to the wall
by means of clips which are nailed with steel pain. When it is necessary to
bend the insulated metal –sheathed wire conduit bending tongs are used.
The type of wiring just described is suitable for many domestic
purpose, but are occasions, when it is desirable to pass the wires through a PVC pipe (poly vinyl chloride) or conduits (a tube for protecting insulated electric wires) to give added protection. One
type of conductor used consists of an
iron sheath coated with leads. New-a-days PVC pipes are mostly used. These
conduits are first installed according
to fixed routes . Nest, the branch boxes are mounted and finally the
electric wires are in the electric wires are in the conduits. For running the
wires into the conduits an inserting tape of steel is entrance point of the line. This point may be a branch box, ceiling outlet
or the point where a switch is to be connected . The inserting tape is then
pushed through to the next outlet and drawn until the eyelet of the inserting tape gets close to the entrance point. The conducting wires are bared at the ends twisted and tied to the eyelet.
In a factory wires have to be laid on the floor to connect machines. The wires
are usually laid in steel or mounted lining is similar to that of a conduit
with a lead coated iron sheath. It is because greater protection for the
conducting wires is necessary.
An electric fan is a blessing of science. During summer when
we feel hot an electric fan with its artificial winds refreshes us and makes cool.
An electric fan is simply an electric motor to which the blades are fixed so
that when the motor of the rotates the blades spared the air. There are three
different types of fans. These are(1)D.C table fan or ceiling fan,(2)A.C table
or ceiling fan, (3)A.C/DC table or ceiling fan. There is some different in the
mechanism of A.C fans form that of D.C. The rotating port of the A.C fan is
called rotor. And the stationary part of A.C .fan is called a starter or armature.
The speed of the fans is controlled by a
regulator. The main element of an electric ceiling fan are blade ,shank, motor,
black cover, head bolt .upper cover , capacitor, housing, split pin, hanging
rod etc. Now-a-days pedestal fan box fan and many other fans are generally used
.thus it is a great achievement of science. A electrical fan is a machine used
to flow within a fluid typically a gas such as air . The fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it is contained
within some form of house of case . This may direct the airflow or increase
safety by preventing objects form contacting the fan blades .most fan are
powered by electric motors , but other sources of power may be used. Electrical revolving blade fans are
made in a wide rang of designs.Ina home you can finds fans that can be put on
floor or table, or hung form the ceiling or are built into a windy. Basic
elements of a typical table fan blade base, armature angled motor blade motor
housing etc. Fans products air flow with high volume and low pressure, as
opposed to compressors which product . high pressure, as opposed to compressors
which produce high pressure ate comparatively low volume. A fan blade open rot
at whine exposed to an air stream, and devices that take advantage of this such
as often has designee, similar to that of a fan design .The industrials
revolution in the late 19th censure is built by in centrigul fan between has in 1998walter kobold invented HVLS calling
fan. Lifelong inventor boyar invented the HVLS calling difference in air temperature will affect
density of air and can be used to induce
air circulation through the mere
air mass this effect is so subtle and work at such law air pressures
that it does
