wires

~ many types of wire in industry for example, 1) overhead line 2) machine winding 3) wiring 

~ bare carries are used in overdue lines. it used to use copper wire but due to high cost of copper, its use has been negligible.

~ all aluminum conductor (AAC) is used in small distribution lines.

~ to increase the strength of the wire , the wire is made by laying steel wire in the middle and aluminum wire around it.

~ this is called ACSR the full from is ( aluminum conductor steel rainford) wire.

~ round enamel covered wire is used in the winding of low capacity machine.

~ larger machine use paper or cotton covered wired 

~ copper strip are also used in some place insulated copper and aluminum conductor are used for wiring copper and aluminum are also used in underground cables. 

                                                                        types of wire


1) PVC WIRE

2) Weather proof wire

3) lead covered wire

4) mineral insulated copper covered wire (micc)

5) VIR wire

6) cab tyre sheathed wire or tuff rubber sheathed wire

~ copper single - stranded wire is used to conduct low currents. and trade wire is used to carry excess current.

~ the wire inside the conductor is the target of a certain diameter it is represented by a gauge . the lower the gauge wire thickness .

~ that is an 18 gauge wire thicker than a 20 gauge wire.

~ the number of wire in the fraction and the gauge at the intersection are taken to indicate the conductor.

~ currently the area of the expressed in mm instead of the gauge. wire are used at different insulation levels.

~ it is insulated according to the voltage level the different types of wire information are show below.


1) PVC wire- this type of wire has pvc insulation on a copper or aluminum conductor. what are the benefits of using pvc as a reward pvc insulated wires are most useful for cable insulation.

~ Because of its resistance to fire and ease of use these wires have been most widely used for cable production.

~ Its durability also makes these wires ideally suited or construction of cables for modern buildings.

~ its dielectric strength is very high.

~ there is a lot of protection against moisture dose not allow the flame of the fire to move forward.

~ life is much longer.

2) weather proof wire - this type of wire can not be affected by external debts. this involves placing a rubbre layers on the copper wire and braiding the cotton on it.

~ it is the then depend in a waterproof compound to make it waterproof. this types of wire is available in single core or double core type.

~ since the upper layer is combustible it is not used in wood work and where there are combustible it is not used in wood work and where there are combustible material .

~ useful for service connection however at present the use of this wire is less

3) lead covered wire- this wire is covered with an insulating layer of rubber over the copper wire. it is covered with lead.

~ the rubber is not affected by moisture due to lead so it is suitable for use in humid spaces, since lead is soft it is prone to mechanical damage, so care must be taken in its use.

~ this wire can be used by placing it directly on the boton.

4) mineral insulated copper covered wire - in this type of wire a layer of magnesium oxide is applied to the copper wire as an insulator.

~ then a copper shell is placed used in humid environment it is coated with pvc. this type of wire is less affected by temperature.

~ this type of wire is used in wiring of mines factory , refineries etc...  

4) VIR wire- in such case the conductor wire is made of copper or aluminum.  it is vaccinated with  a rubber coating.

~ this layer is in one or tow layer is  in one or two layer. laminated cotton brading is applied by applying cotton tape on it this type of wire can withstand less mechanical force.

~ the effected of water moisture etc. on the insulator decreases its strength as an insulator. the wire is exposed to chemical quickly and is likely to be cut with a sharp weapon.

5) cab tyre sheathed wire or tuff rubber sheathed wire- this type of wire is coated with strong and durable rubber over copper wire its mechanical strength is higher than vie wire.

~ it is less affected by heat moisture and water. the wire is single core twine core and found in the core. it is used in surface wiring in grooved wiring and industrial wiring.

~ this types of wire are available in 250/440v and 650/1100v and rating 1/18, 1/20, 3/20, 7/20.