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A

Presentation on

CABLE

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CABLE

Most often refers to two or more wires running parallel and bonded,

twisted, or braided together to form a single assembly.

In mechanics cables are known as wire ropes, are used for conveyingforce through tension.

In electrical engineering cables are used to carry electric currents.

In telecommunication an optical cable used for data transmission.

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Cable Construction

Based on construction and cable properties, they can be sorted into the

following:

Multicore cable (consist of more than one

wire and is covered by cable jacket)Twisted pair

Twinax cable

Coaxial cable Mineral-insulated copper-clad cable

Bowden cable

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Non-metallic sheathed cable (or non-metallic building wire, NM, NM-B)

Metallic sheathed cable (or armoured cable, AC, or BX)

Single cable

Special Construction

Arresting cable

Direct-buried cable

Elevator cable

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Constructional materials for polymer insulated

cables

Metallic conductors- Copper, aluminum

Polymeric materials for insulation

PVC

XLPE

EPR

Silicone Rubber Blends (e.g. EVA+EPDM)

Protective Sheaths

Thermoplastic Sheaths

Polyamide and Polyurethane

Elastomer Sheath

Armor- Steel, Aluminum Electrical Screening

Semiconducting Shields

Metallic Screening

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Designation

It includes

Abbreviated description of the cable design and its component

materials

Number of cores by nominal cross-sectional area of conductor (mm2)

Indications of shape and type of conductor Rated Voltage (kV)

Voltage designation

Additional symbols for cables

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Cable Design

Current carrying capacity and selection of cross sectional area

Electrical stress and Insulation Thickness

Dielectric Properties

Compound Design

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Manufacturing Process

Conductor forming includes drawing and annealing of wires, coating

(tinning and plating) of wires

Insulating and sheathing (consists of mixing/compounding, extrusion and

curing)

Assembling including laying up of cores, taping, braiding and armoring

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Fig. depicting manufacturing process for PVC insulated cables

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Testing

The Insulated Cable Engineers Association (ICEA) develops cable standards for

the electric power, control and telecommunications industries which includes

Characteristics of insulated cable

Physical and electrical properties of conductors used in overhead lines

Cable tray flame tests Communications wire cabling

Telecommunications cable

Partial discharge test procedures

AC/DC resistance ratios

Fiber optics

Telephone cordage

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Special Purpose Elastomeric Cables

Fire Survival Cables

Silicone rubber insulated cables

Mica/glass and EPR insulated cables

Radiation Resistant Cables

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Application

Audio-visual cable

Bowden cable for bicycle

Communications cable

Computer cable

Mechanical cable

Sensing cable

Submersible cable

Wire rope (wire cable)

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References

Anil K. Bhowmick, Malcolm M. Hall, Henry A. Benarey, 1994, Rubber Products Manufacturing Technology, Marcel Dekker

Inc.

D. Pollard, C. M. Blow, C. Hepburn, 1985, Cables, Rubber Technology and Manufacture, 2nd edition, Butterworths for the

Institution of the Rubber Industry

http://www.ihs.com/products/industry-standards/organizations/icea/index.aspx

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