Aerial bundled cable

Aerial bundled cable mean?

Aerial bundled cable is in direction of transmission and distribution in the airline used, in fact, a bunch of power cables and coating that are in the rig and the foundations of the distribution of electricity, by a retainer installed and kept it.

Use the cable pull your for the first time to the mid-twentieth century AD, and France’s. with this, there is a history of using cables, over head line in the electricity network in Iran so long, but due to the numerous benefits had been welcomed and the position of the user right has. In fact, this cable characteristics better than conductors Anil not copper provide direct. Also, due to the insulation being, the possibility of a connection between the strings and also steal power disappears.

 

Cables, over head line can be divided into two categories, high and low pressure, the pressure, the average segmentation him. If we want the structure of the cable, and pull your review, we should say that theAerial bundled cable has XLPE insulation and conductors, aluminum, and also a wire retainer (Messenger)) which is The Wire for the cable 20 KV, steel, and for the cable tension of the aluminum alloy can be. In the structure of the Aerial bundled cable weak pressure of the wire holder, as the wire Nevele also will be used. Read on to detail to investigate a variety of cable pull your chart.

Aerial bundled cable weak pressure

 

Specifications Aerial bundled cable weak pressure

Classification and name, this cable pull your single phase and three phase low voltage based on the number of fields of ingredients is as follows:

  • six strings: the string phase, a string lighting passages, and a string is null, a string holder
  • five disciplines: three-strand phase, a string lighting passageways and a string Nevel holder
  • three strings: a string phase, a string lighting passageways and a string Nevel holder
  • two fields: a field phase and a string is null (for cable service to subscribers, and feeding single-phase)

Arrange the writing, the cross section stranded in cable, three-phase five-string is as follows:

3*A+L+M&N

Arrange the writing, the cross section stranded in Aerial bundled cable single-phase conductor, the brightness is as follows:

1*A+L+M&N

Also this way in the Aerial bundled cable single phase without a conductor, the brightness is as follows:

1*A+N+M

* A: cross-section nominal conductor phase

* L: cross-section nominal conductor, lighting, passages

* M&N: cross-section nominal conductor null anchoring

Section name Cable Pull your low voltage single phase and three phase standard, according to millimeters square as follows:

 

Aerial bundled cable three-phase (six-strand)

    • 3*25+25+16+16
    • 3*35+35+25+25
    • 3*50+50+25+25
    • 3*70+70+25+25
    • 3*95+95+25+25
    • 3*120+120+25+25

 

Cutting cross-section Aerial bundled cable 6 string

 

Index Description Unit Conductor phase Conductor null/Messenger
b Width of the bush, on semiconductor Mm 0.2 ± 1.0 0.2 ± 0.6
h Looming Bush, on semiconductor Mm 0.1 ± 0.5 0.1 ± 0.3
a The distance between two thorns Mm 1 ± 5 1 ± 3

 

  • Aerial bundled cable three-phase (five string)
    • 3*35+16+50
    • 3*50+16+50
    • 3*70+16+70
    • 3*95+25+70
    • 3*120+25+70

 

Cutting cross-section Aerial bundled cable 5 string

 

Index Description Unit Conductor phase Conductor null/Messenger
b Width of the bush, on semiconductor Mm 0.2 ± 1.0 0.2 ± 0.6
h Looming Bush, on semiconductor Mm 0.1 ± 0.5 0.1 ± 0.3
a The distance between two thorns Mm 1 ± 5 1 ± 3

 

  • Aerial bundled cable single-phase (four-string)
    • 1*25+25+16+16
    • 1*35+35+16+25

 

  • Aerial bundled cable single-phase (three-strand)
    • 1*16+16+35
    • 1*25+16+35
    • 1*35+16+50

 

Cutting cross-section Aerial bundled cable (three-strand)

 

Index Description Unit Conductor phase Conductor null/Messenger
b Width of the bush, on semiconductor Mm 0.2 ± 1.0 0.2 ± 0.6
h Looming Bush, on semiconductor Mm 0.1 ± 0.5 0.1 ± 0.3
a The distance between two thorns Mm 1 ± 5 1 ± 3

 

  • Aerial bundled cable single-phase (two-strand)
    • 2*16
    • 2*25

Conductor cable

Conductor phase and Lighting, Aerial bundled cable pressure, poor, etc. from the field type combed and compact, round and made of aluminum, H12, or EC1350 with a minimum purity 99/5 percent. also, the number of strands in the conductor, the phase and the lighting for cross-sections up to 50 mm, 7-string, and for the cross-section 70, at least 12-string and sections above, 19 string.

Stranded conductors null, preservatives, etc. from Type 7-strand spun and pressed round, and from aluminum alloy, magnesium سیلسیوم 6101 is.

Insulated cable

Insulated Aerial bundled cable pressure, poor, etc. of matter, heat, hardness, based on polyethylene, grid, and color is black. Should be insulated against atmospheric agents and radiation ultraviolet radiation of the sun and stretch and wear-resistant treatment.. Insulation to the method of extrusion on the conductor to be pulled.

 

Aerial bundled cable pressure temperature

Specifications Aerial bundled cable pressure temperature

Cable pull your average pressure in the cross-section of different production are that the size of the standard in the electrical industry in Iran includes a cable with a three-phase 35 of 70, 120 and 150 mm square. The airlines, in front of the natural factors such as beam, Ultra-Violet sunlight, and the like, it is essential that the insulation of the Outer it against the agents of the resistance is high that this is the most important structural differences the cable and the cable ground can be considered.

Cut the cross-sectional Aerial bundled cable pressure temperature

 

Layer ingredients Aerial bundled cable pressure, temperature as follows:

  1. Conductor: conductor Aerial bundled cable average pressure of the threaded aluminum non-alloy, multi-wire, pressed and twisted, and has a cross section of a round can be.
  2. Screen conductor: cover, semi-conductor the conductor with a minimum thickness of 0/30 mm and the average thickness 0/80 mm, a layer of extruded with the composition of polyethylene cross-linked in order to tension electro-static as well as the Uniform Building in the Square, directly on the conductor to be drawn in a way that perfectly insulated stick.
  3. Insulation: dielectric of poly-ethylene network (XLPE) for extruded according to the standard IEC 60502 – 2 on the layer of semi-conductor the conductor to be pulled.
  4. Screen insulation: cover the semi-conductor on the insulation with a minimum thickness 0/6 mm layer extruded in accordance with the standard IEC 60502-2, which is in the direction of uniformity of the field, and also increases the dielectric, etc. on the insulation of the cable to be pulled.
  5. Bar separator: a layer of semi-conductive with a minimum thickness of 0.1 mm, which is on the cover semi-conductor insulated cable placed.
  6. Shield metal: a metallic layer consists of a threaded copper wires, the center with a bar, copper wrapped around a core, etc., in accordance with the standard IEC60228 can be. Cross-section equivalent to the shield for the cable to cross the conductor 150 mm square, preferably to a total of 28 field with a diameter of 0/85 equivalent to 16 mm square can be.
  7. Bar separator shield metal of the sheath: this layer in the direction of separating the sheath and shield the metal from the right combination that would polypropylene, polyester and other plastics will seperate formed.
  8. The outer sheath: the last layer of the cable in accordance with ASTM standard D1248 of a veneer, PE, HDPE, etc., resistant against environmental conditions, is usually on the plated cable inserts can be.
  9. Wire holder,wire holder, bare, in accordance with Standard, ASTM B498 should be of strands twisted galvanized steel to be made. In areas where the probability of corrosion is large, can be made of annealed steel with aluminum cover used.

Cable pull your through earth wires, hold the holder in front of the added voltage caused by lightning protected, so the direction of the wire holder, cable pull your pressure temperature should be at intervals of less than 500 km, the land is crafted.

 

Standard cross section cable pull your average pressure in the distribution networks in Iran are as follows

Lines of 33 KV Lines 20 KV
3*35+43 3*35+43
3*70+60 3*70+60
3*120+60 3*120+60
3*150+87 3*150+60

 

The advantages of cable pull your

  • Reduce the amount of the ramifications of unauthorized
  • Beauty, urban furniture
  • Increase safety, cable pull your towards transmission lines, trendy safer they are.
  • Reduce the drain on minor
  • Possibility to install the cables, pull your weak pressure on the beam transmission lines, 20 كیلو volt
  • Low cost of installation and maintenance
  • Safety against short-circuit, but due to the insulation, the risk of a lot of electric shock random will decrease.
  • Easy installation, due to the lack of need for insulators
  • Place of use in tight areas and narrow
  • The possibility to perform a service on the hot line
  • Take advantage of the beam transfer lines shorter, because of the insulation of the cable
  • Possible to install new lines on the beams of electricity and increase the capacity of line
  • The vibrations more than bare wire according to the structure of your Mira sell cable
  • Resistance, high corrosion and tear
  • The possibility of installing a fiber optic phone lines on a common base
  • Reduce losses
  • Reduce the cost of accessories, transmission lines, such as branches, mowing, trees
  • Reactance-less cable pull your towards the lines wired air (about 1/4)
  • Detailed, easy, due to being just a conductor requires the joint tensile is.
  • A fire caused by a short circuit is very low occurs.
  • The cost of the implementation of transmission lines through the Aerial bundled cable 10 to 60% less than the airline sex can be.
  • Likely added voltage caused by lightning is low.

Disadvantages of cable pull your

  • Repair Cable Pull your a long and time consuming and also special equipment for repair need.
  • Insulation Cable Pull Your also can sometimes problem is. Due to exposure to the sun, the insulation degradation can be certain problems it creates.
  • Problem being network connection copper wire and Aerial bundled cable