Medium Voltage Power Cables - AEC Online...Preface The Medium Voltage Power and Special Application Cables are used in various indoor and outdoor applications in industries, switchboards

Medium VoltagePower Cables

1 Introduction Preface

General Information

Definitions

Introduction to XLPE Insulated Cables

Design of Medium Voltage Cables

Construction of Medium Voltage Cables

2 Medium Voltage Cables 3.6/6 kV Single-core & Three-core Cables, Unarmoured With Copper Conductors

3.6/6 kV Single-core & Three-core Cables, Tape Armoured With Copper Conductors

3.6/6 kV Single-core & Three-core Cables, Wire Armoured With Copper Conductors

3.6/6 kV Single-core & Three-core Cables, Unarmoured With Aluminum Conductors

3.6/6 kV Single-core & Three-core Cables, Tape Armoured With Aluminum Conductors

3.6/6 kV Single-core & Three-core Cables, Wire Armoured With Aluminum Conductors

6/10 kV Single-core & Three-core Cables, Unarmoured With Copper Conductors

6/10 kV Single-core & Three-core Cables, Tape Armoured With Copper Conductors

6/10 kV Single-core & Three-core Cables, Wire Armoured With Copper Conductors

6/10 kV Single-core & Three-core Cables, Unarmoured With Aluminum Conductors

6/10 kV Single-core & Three-core Cables, Tape Armoured With Aluminum Conductors

6/10 kV Single-core & Three-core Cables, Wire Armoured With Aluminum Conductors

8.7/15 kV Single-core & Three-core Cables, Unarmoured With Copper Conductors

8.7/15 kV Single-core & Three-core Cables, Tape Armoured With Copper Conductors

8.7/15 kV Single-core & Three-core Cables, Wire Armoured With Copper Conductors

8.7/15 kV Single-core & Three-core Cables, Unarmoured With Aluminum Conductors

8.7/15 kV Single-core & Three-core Cables, Tape Armoured With Aluminum Conductors

8.7/15 kV Single-core & Three-core Cables, Wire Armoured With Aluminum Conductors

12/20 kV Single-core & Three-core Cables, Unarmoured With Copper Conductors






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INDEX

......... Continued

Medium Voltage Cables 18/30 kV Single-core & Three-core Cables, Unarmoured With Copper Conductors






3 Cables For Special Applications Lead Sheathed Cables

Low Smoke Halogen Free Cables

Other Types / Characteristics

4 Technical Data Annex A : Continuous Current Ratings

Annex B : Recommendations

Annex C : Tests

Annex D : Formulas

Annex E : Derating Factors

Annex F : Short Circuit Current

Annex G : Materials Properties

Annex H : Coding Key

Annex I : Information And Agreements

Annex J : Conversion Table

5 Product Range

6 Contact Us

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INDEX.......

PrefaceThe Medium Voltage Power and Special Application Cables are used in various indoor and outdoor applications in industries, switchboards and power stations.Our products conform to various IEC and BS standards. They are tested at leading laboratories and are approved by many utility companies, ministries and major industries. brand is the manifestation of ’s constant endeavor for providing a comprehensive range of construction materials to satisfy its customers with products of the highest quality standard and safety, coupled with prompt services. Our cables factory is one of the major industrial units in the ultramodern, fully-integrated Industrial Complex.

From its headquarters in Riyadh, Saudi Arabia, operates a fu l ly- in tegrated g lobal network of manufacturing facilities, design & development centers, and branches in Dubai (UAE), Doha (Qatar), Cairo (Egypt), Damascus (Syria), Chennai (India) and many other countries.

Our major businesses and services include: Electrical Manufacturing, Electrical Construction, Marketing and Distribution, Building Industry, Real Estate Development, Information Technology and Communication.

Industries Group Overview Industrial Complex – located in Riyadh – houses several industrial units for manufacturing medium/low voltage products, wires and cables, transformers, wooden reels (for coiling cables) and PVC compounds (for insulation and jacketing materials).

Apart from the manufacturing units, the Industrial Complex also houses a commercial zone, a data/communication center and other facilities.

The Industrial Complex is symbolic of ’s consistent growth representing its bright future.

The following factors are important when selecting a suitable cable construction which is required to transport electrical energy from the power station to the consumer:

General Information

Jacket Marking

Standard embossed outer jacket marking consisting of:1. Name of manufacturer 2. Type designation, size of conductor, rated voltage3. "ELECTRIC CABLE"4. Year of manufacture 5. Continuous length marking every meter 6. Any special part number, on request

Weights and Dimensions

Weights and dimensions characteristics are approximate and any deviations are due to manufacturing tolerance.

Standards

The cables described in this catalogue are all standard types, and their performance has been proved in operation. Construction and tests are in accordance with the recommendations of IEC or BS publications where applicable. Power cables in accordance with other standards (VDE, NEMA or ICEA) can be manufactured upon a customer's request.

Selecting a Power Cable

Maximum operating voltage Insulation level Frequency Load to be carried Magnitude and duration of possible loadMode of installation, either underground or in air Chemical and physical properties of soil Maximum and minimum ambient air temperature and soil temperature Specification and requirements to be met

1

Definitions

Definitions of Dimensional Values

Definitions Concerning Tests

1. Nominal valueA value by which a quantity is designed and which is often used in tables; usually, in IEC standard, nominal values give

rise to values to be checked by measurements taking into consideration the specified tolerances

2. Approximate valueA value which is neither guaranteed nor checked; it is used, for example, for the calculation of other dimensional values

3. Median valueWhen several test results have been obtained and sorted in an ascending or descending order, the median value is the middle value if the number of available values is odd, and the mean of the two middle values if the number of available values is even

4. Fictitious valueValue calculated according to the "fictitious method" described in Annex A of IEC 60502-2 or Annex E of BS 6622 (where applicable)

1. Routine tests Tests made by the manufacturer on each manufactured length of cable to check that each length meets the specified requirements

2. Sample testsTests made by the manufacturer on samples of completed cable or components taken from a completed cable, at a specified frequency, so as to verify that the finished product meets the specified requirements

3. Type tests Tests made before supplying on a general commercial basis, a type of cable covered by this standard, in order to demon-strate satisfactory performance characteristics to meet the intended application. These tests are of such a nature that, after they have been made, they need not be repeated, unless changes are made to the cable materials or to the design or manufacturing process, which might change the performance characteristics

4. Electrical tests after installation Tests made to demonstrate the integrity of the cable and its accessories after installation


Advantages of XLPE Insulation

High Continuous Current Ratings:Higher continuous operating temperature of 90 °C for conductor permits XLPE Cables to withstand higher current ratings than PVC or PILC Cables.

High Short Circuit Ratings:Maximum allowable continuous temperature during short circuit is 250 °C, which is vastly increased as compared to PVC or PILC Cables.

Little Deformation at High Temperature:Under combined heat and mechanical pressure XLPE suffers less deformation compared to other solid dielectrics.

High Emergency Load Capacity:XLPE cables can be operated at 130 °C during emergency. This should not exceed 1500 hours during the lifetime of a cable. Due to this, 20% higher current than the specific rating may be carried for this period.

Low Dielectric Loss:The dielectric loss angle of XLPE is much lower than conventional dielectric. The dielectric losses are quadratically dependent on the voltage. Hence use of XLPE Cables at higher voltages would generate considerable saving in costs.

Low Charging Currents:The charging currents are considerably lower than other dielectrics. This permits close setting of protection relays.

Lighter Weight:XLPE Cable is easier to handle because of its light weight. Its small bending radius enables very easy laying and installa-tion.

XLPE Insulated cables have been used for distribution in public supply systems for about 25 years now. Because of their numerous advantages they have steadily displaced the classical Paper-Insulated cables in many countries.

XLPE is an abbreviation of Cross-linked polyethylene. This has been recognized worldwide as an excellent dielectric for wires and cables. It first went into commercial production in 1960. Polyethylene, which is a thermoplastic material, is converted into a thermosetting material by a process similar to vulcanization of rubber. By cross-linking, the linear chain structure of polyethylene is changed into three-dimensional network structure. By this change, polyethylene, which has outstanding dielectric properties, is made resistant to extremes of temperature.

The high resistance to heat deformation and ageing in hot air provide important advantage in cable ratings and is of special significance at locations where the ambient temperature is high. These, along with better resistance to environmen-tal stress cracking and low dielectric constant make XLPE Cables particularly suitable for medium voltage applications.

XLPE Insulated Cables

3

Processing of XLPE Insulation

Cross-linked polyethylene via organic peroxide has emerged as the dominant process technology employed throughout the world for medium voltage cables. The choice of the cross-link additives and the stabilizer has a significant influence on the short and long term performance of medium voltage cables as well as the extrusion characteristics of the insulation compounds.

Cross-linked polyethylene is obtained through a first order reaction of high molecular polyethylene with the thermally driven hemolytic cleavage of the peroxide bond (Fig. 1).

ROOR 2 ROPH + RO P + ROH2 P P-P

WhereROOR : PeroxideRO : Alkoxy radicalP : PolymerP : Polymer radical

Fig. 1: Peroxide Cross-linking Reaction Sequence in Polyethylene

Rated Temp.

Minimum tensile strengthMinimum elongation at breakRelative permittivity ( Dielectric constant )Thermal resistivity Specific gravityDielectric power factor at max. conductor temperature (tan δ)Heat deformation at 150 ºCSolvent resistanceSplicing & terminationEnvironmental stress cracking

- Normal- Emergency- Short circuit

90 °C130 °C250 °C12.5 N / mm2

200 %2.53.5 °C.m / W0.93 g / cm3

40 x 10-4

GoodGoodEasyGood


The modern manufacturing process for XLPE insulation consists of triple extrusion of peroxide-cross-linkable polymeric cable component layer on a copper or aluminum conductor, followed by a continuous vulcanization process and a cooling step. The peroxide containing polymer compounds are extruded in the range of 110 °C to 140 °C at various line speeds, followed by vulcanization under 100~200 psi of dry hot nitrogen in a tube with a residence time to obtain the desired cross-linking of the compounds. The temperature is the key factor to induce decomposition of the peroxide, which initiates the cross-linking process in the polymer compounds. Therefore, the cross-linking condition is very sensitive to the heat transfer condition of the continuous vulcanization (CV) tube and cable construction.

The quality of the vulcanizable insulation compounds is strongly dependent on the efficiency of an organic peroxide concentration level. It is very important to understand the cure kinetics to define a proper cross-linking performance in the commercial CV tube conditions for optimum cable manufacturing process. One of the critical elements in the processing of XLPE insulation for medium voltage cables is the perfection of the interfaces between the insulation and the semi-conductive inner and outer shields forming the three layers of insulation. This concern rises up the importance of the simultaneous extrusion of the inner semi-conductive, insulation and outer semi-conductive layers, which is achieved by the specially developed high performance triple heads using super smooth, extra clean raw materials with immediate curing on the continuous vulcanization (CV) line.

The one step continuous process guarantees the following features:

• Homogenous insulation, free from micro-voids• Very smooth interfaces between the insulation and the semi-conductive layers• High impulse and AC breakdown strength• Long life and service reliability

5

Fig. 2 Continuous Vulcanization (CV) Line Fig. 3 Triple-Head Extrusion System

Design Features


=Ε

i

ax

ox

rr

r

U

ln.

Medium voltage cables have common design features independent of the rated voltage and operating frequency. The components that essentially determine the electrical and thermal behavior of the cable are the conductor, the insulation with inner and outer semi-conductive layers and the metallic screen.

Medium voltage cables of rated voltages from 6 kV up to 30 kV (rated voltage of 35 kV is defined and included in some countries, like in Saudi Arabia) are designed as so-called Radial Field Cables.

The main XLPE insulation of a medium voltage cable can be regarded as a homogenous cylinder. Its field distribution or voltage gradient is therefore represented by a homogenous radial field. The value of the voltage gradient at a point x within the insulation can therefore be calculated as:

(kV/mm)

WhereUo : Operating voltage (kV).rx : Radius at position x.ra : External radius over insulation.ri : Radius of the inner semi-conductive layerNote: All dimensions are in mm.

The electrical field strength is maximum at the inner semi-conductive layer and minimum above the insulation (below the outer semi-conductive layer, where rx = ra).

To ensure a defined cylindrical field and to withstand the field strength that occur, all medium voltage cables of rated voltages 6 kV and above, independent of their type of dielectric, require field limiting or field smoothing layers, widely known as semi-conductive layers, in the interface between conductor and insulation (Conductor screen) and between insulation and metallic screen (Insulation screen). These semi-conductive layers have two principal purposes:

1. Equalizing and reduction of the electrical stress in the cable dielectric by preventing local field enhancement in non-homogenous areas such as the individual wires of the conductor. The semi-conductive layers eliminate the effect of the individual wires on the field distribution (see Fig. 5). 2. Prevention of the formation of gaps or voids between the voltage-carrying components of the cable (conductor and metallic screen) and the insulation layer due to mechanical stress, e.g. bending of the cable or differential expansion of the various materials under varying thermal stress. A solid and permanent bond between the semi-conductive layers and the insulation effectively prevents the occurrence of partial discharges; an essential feature in the case of polymer-insulated cables.

The grounded metallic screen, which is always needed, provides effective electrical screening of the cable. The cable environment is thus free of electrical fields.

Fig. 4: Field distribution within a medium voltage

XLPE cable

x

rrx a

E


The cable is finally given an overall sheath of suitable thermoplastic material to protect the metallic screen along with the complete cable from moisture and corrosion damages.

7

Fig. 5: Principle of field equalization over stranded conductor by using a conductive layer.

Without conductor screen: Stress enhancement by small radius of single wires

With conductor screen: Cylindrical field distribution (radial field)

Components

The principle components of the common types of medium voltage cables have already been examined briefly under the heading “design features”. The most important properties and the function of these components will now be described in so far as they apply in general to the types of cables being covered by this catalogue.

These principle components described here below represent our standard models of cables, however any other models as for the customer’s standard are also available.

Conductor

The task of the conductor is to transmit the current with the lowest possible losses. The decisive properties for this function result in the first place from the conductor material and design. The conductor also plays a decisive part in the mechanical tensile strength and bending ability of a cable.

The conductor material shall be either of plain annealed copper or plain aluminum. The most important properties of the two conductor materials are compared here below.


Property

Density in g/cm3

Spec. resistance in Ω.mm2/mTensile strength in N/mm2

8.890.017241200 … 300

2.7030.02826470 … 90

Copper Aluminum

Properties of Al and Cu conductor materials:

XLPEInsulatedCables

The conductor behavior is characterized by two particularly noteworthy phenomena: the skin effect and the proximity effect.

The skin effect is the concentration of electric current flow around the periphery of the conductors. It increases in proportion to the cross-section of conductor used.The proximity effect is generated from the short distance separating the phases in the same circuit. When the conductor diameter is relatively large in relation to the distance separating the three phases, the electric current tends to concentrate on the surface facing the conductors. The wires of the facing surfaces indeed have a lower inductance than wires that are further away (the inductance of a circuit increases in proportion to the surface carried by the circuit). The current tends to circulate in the wires with the lowest inductance. In practice, the proximity effect is weaker than the skin effect and rapidly diminishes when the cables are moved away from each other.

The proximity effect is negligible when the distance between two single core cables in the same circuit or in two adjacent circuits is at least 8 times the outside diameter of the cable conductor.

There are two designs of conductor, stranded compacted circular conductors and stranded segmental (Milliken) conductors.

Compacted round conductors are composed of several layers of concentric spiral-wounded wires. Due to the low resistance electrical contacts between the wires in the compacted round stranded conductors, the skin and proximity effects are virtually identical to those of solid plain conductor. This structure is reserved for cross-sections up to and including 800 mm2.

Segmental conductors, also known as “Milliken” conductors, are composed of several segment-shaped conductors assembled together to form a cylindrical core. This structure is reserved for large cross-sections of 1000 mm2 and above. The “Milliken” type structure reduces the highly unfavorable skin and proximity effects.


9

Fig. 6: Conductor designs for medium voltage cables

Segmental “Milliken” conductor Compacted round stranded conductor

Conductor Screen

Conductor screen of an extruded semi-conducting compound shall be applied over the conductor to prevent the electric field concentration in the interface between the XLPE insulation and the conductor.

Insulation

As its name suggests, the insulation insulates the conductor when working at a certain voltage from the screen working at earthing potential. The insulation must be able to withstand the electric field under rated and transient operating conditions. The insulation for medium voltage cables shall be dry-cured XLPE compound with a thickness to meet dimensional, electrical and physical requirements specified by the design standard such as IEC, BS, ICEA, etc.

The compound shall be high quality and heat, moisture, ozone and corona resistant. The insulation shall be suitable for operation in wet or dry locations at conductor temperature not exceeding 90 °C for normal conditions, 130 °C for emergency overload conditions and 250 °C for short circuit conditions.

Insulation Screen

This layer has the same function as the conductor screen, where it is a progressive transition from an insulating medium, where the electric field is non-null, to a conductive medium (the cable metallic screen) in which the electric field is null.

The insulation screen shall be applied direct upon the insulation and shall consist of an extruded semi-conducting compound. The extruded semi-conducting compound can be firmly bonded to the insulation or easily strippable from the insulation. The volume resistivity of the extruded semi-conducting screens applied over the conductor (conductor screen) and over the insulation (insulation screen) shall not exceed 1000 Ω.m and 500 Ω.m, respectively

Fig. 7: Conductor screen, XLPE insulation and insulation screen of medium voltage cable.

XLPE Insulation

Conductor Screen

Insulation Screen

Metallic Screen

When the voltage reaches tens or even hundreds of kV, a metallic screen is necessary. Its main function is to nullify the electric field outside the cable. In addition to the task of electrostatic screening already mentioned, the metallic screening also has to fulfill the following functions: Return of the capacitive charging current under operating conditions. Conduction of the earth fault current in case of a fault until the system is switched off. Reduction of the electrical influence on the cable surroundings in case of an earth fault. Provision of protection against accidental contact.

The metallic screen in medium voltage cables shall consist of one or more tapes, or a concentric layer of wires or a combination of wires and tape(s). When choosing the material of the screen - which is normally of copper – special consideration shall be given to the possibility of corrosion, not only for mechanical safety but also for electrical safety.

Armour

The armour protects the cable against mechanical stresses. For multi-core cables, galvanized steel is used as an armour material in one of the following forms:

1. Wires: Single layer applied concentrically over the bedding. Wire armour is recommended for cables which will be subjected to a horizontal mechanical stresses.

2. Tapes: Two tapes applied helically over extruded bedding in two layers so that the outer tape is approximately central over the gap of the inner tape. The gap between the adjacent turns of each tape shall not exceed 50 % of the width of the tape. Tape armour is recommended for cables which will be subjected to a vertical mechanical stresses.

Single core cables in single or three-phase AC (alternating current) systems are not armoured as a rule, in order to avoid additional losses. However, armour of non-magnetic material (aluminum) has to be provided wherever mechanical damage or higher tensile stresses are to be expected during or after laying the cable.


11

Anti-Corrosion Protective Jacket

Metallic screen or other metal sheaths require additional protection against mechanical damage and, above all, against corrosion caused by water in conjunction with electrolytically active components in the soil. The outer jacket must withstand the mechanical stresses encountered during installation and service, as well other risks such as termites, hydrocarbons, etc. It shall consist of thermoplastic compound (PVC, PE or similar materials) extruded continuously over the metallic layer.

13 The above data is approximate and subject to manufacturing tolerance.We reserve the right to change the above figures as a result of product development and/or changes in standard.

Single-Core Cables, with Copper Conductors, XLPE Insulatedand PVC Sheathed

APPLICATION Suitable for installations indoors: mostly in power supply stations and outdoors: in cable ducts, underground, and on cable trays for industries, switch-boards and power stations.

APPLICABLE STANDARDS medium voltage cables are designed and tested to meet or exceed the requirements of IEC 60502-2 standard. However, can also supply a range of alternative designs to meet customer-specified requirements.

CABLE CONSTRUCTION

ConductorPlain annealed stranded circular compacted copper conductor (Class 2).

Conductor ScreenExtruded layer of a cross-linkable semi-conducting compound as a stress control layer.

InsulationExtruded layer of cross-linked polyethylene (XLPE).

Insulation ScreenExtruded layer of a cross-linkable semi-conducting compound firmly bonded to the insulation.

Metallic ScreenFlat plain copper tape helically applied over the insulation screen with suitable overlap.

Outer JacketExtruded layer of Polyvinyl chloride (PVC). Note: The conductor screen, XLPE insulation and the insulation screen are extruded simultaneously in one process using triple extrusion method (Continuous Vulcanization Line). Triple extrusion method not only assures clean interfaces between the insulation and stress control layers, but also assures a construction free of Partial Discharge with high operational reliability.

TECHNICAL DATA Rated voltage Uo / U (Um) 3.6 / 6 (7.2) kVImpulse test voltage (peak value) 60 kVPower frequency test voltage for 5 minutes 12.5 kVMax. conductor operating temperature at Normal conditions 90 °CMax. conductor operating temperature at Emergency conditions 130 °C Max. conductor operating temperature at Short circuit conditions 250 °CMin. bending radius during installation in terms of cable outer diameter 20 Ø

Metallic Screen

Outer Jacket

Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Constructional Data

Conductor

Nominalarea of

conductor

Approx.conductordiameter

Insulation Screen Armour Packing

Thickness of insulation layers

C.S XLPE I.S

Min. Nom. Min.

Approx. metallic

screen tape thickness

N / AApprox. overall diameter

Approx. overall weight

Standard cutting length± 5 %

mm2 mm mm mm mm mm mm mm m kg / km

Cable Code

C316XF1BB0MRDXXI0MRC317XF1BB0MRDXXI0MRC318XF1BB0MRDXXI0MRC319XF1BB0MRDXXI0MRC345XF1BB0MRDXXI0MRC346XF1BB0MRDXXI0MRC347XF1BB0MRDXXI0MRC348XF1BB0MRDXXI0MRC349XF1BB0MRDXXI0MRC350XF1BB0MRDXXI0MRC351XF1BB0MRDXXI0MRC352XF1BB0MRDXXI0MFC353XF1BB0MRDXXI0MFC354XF1BB0MRDXXI0MFC755XF1BB0MRDXXI0MF

MEDIUM VOLTAGE CABLES

3.6 / 6 kV

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

---------------

16.217.218.620.222.023.325.026.729.432.435.639.643.447.955.5

467572720935120514611731211626923330419453676665851410712

10001000100010001000100010001000100010001000500500500500

Electrical Data

Nominalareaof

conductor DC at20 °C

Electrical Characteristics Continuous Current RatingsBuried directin the ground In single-way ducts In air

Max. ConductorResistance

AC at90 °C

Reactance(60 Hz)

Impedance(90 °C, 60 Hz)

Capacitance Trefoil Flatspaced TrefoilFlat

touched TrefoilFlat

touched

mm2 Ω / km Ω / km Ω / km Ω / km μF / km A A A A A AA

Fig. (a) Fig. (b) Fig. (d) Fig. (e) Fig. (f) Fig. (g)Fig. (c)

Flatspaced

25355070951201501852403004005006308001000

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.04700.03660.02830.02210.0176

0.92720.66850.49390.34240.24710.19650.15990.12870.09930.08070.06510.05320.04420.03780.0250

0.1530.1450.1360.1280.1230.1190.1160.1120.1090.1070.1040.1020.0990.0970.094

0.9400.6840.5120.3660.2760.2300.1980.1700.1470.1340.1230.1150.1090.1050.098

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

126151178217259293327368425476535599664725891

132157185226269304340382439491550612675733829

114137162198238270303343397448508573643709842

114137162198237269301340393441497557618676782

14017020425531135940947055663873584696310811387

14317420926231936841948156865174785696910801359

1702072493113804364975696697678781007114012711503

Fig. (a) Fig. (b) Fig. (c) Fig. (d)

0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)


Three-Core Cables, with Copper Conductors, XLPE Insulatedand PVC Sheathed


APPLICABLE STANDARDS

medium voltage cables are designed and tested to meet or exceed the requirements of IEC 60502-2 standard. However, can also supply a range of alternative designs to meet customer-specified requirements.

CABLE CONSTRUCTION






FillerNon-hygroscopic polypropylene filler suitable for the cable’s operating temperature.


TECHNICAL DATA

Rated voltage Uo / U (Um) 3.6 / 6 (7.2) kVImpulse test voltage (peak value) 60 kVPower frequency test voltage for 5 minutes 12.5 kVMax. conductor operating temperature at Normal conditions 90 °CMax. conductor operating temperature at Emergency conditions 130 °C Max. conductor operating temperature at Short circuit conditions 250 °CMin. bending radius during installation in terms of cable outer diameter 15 Ø

Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Outer Jacket

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic






Cable Code

C316XF3BB0MRDXXI0MRC317XF3BB0MRDXXI0MRC318XF3BB0MRDXXI0MRC319XF3BB0MRDXXI0MRC345XF3BB0MRDXXI0MRC346XF3BB0MRDXXI0MRC347XF3BB0MRDXXI0MRC348XF3BB0MRDXXI0MFC349XF3BB0MRDXXI0MFC350XF3BB0MRDXXI0MFC351XF3BB0MRDXXI0MF


3.6 / 6 kV

2535507095120150185240300400

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.10

0.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.0

0.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

-----------

33.235.438.242.045.748.752.156.061.868.275.1

1507184423013018385746795522675485851062013361

1000100010001000100010001000500500500500

Electrical Data

Nominalareaof


Electrical Characteristics Continuous Current RatingsBuried directin the ground

In a buried duct In airMax. ConductorResistance

AC at90 °C

Reactance(60 Hz)


Capacitance

mm2 Ω / km Ω / km Ω / km Ω / km μF / km A A A

Fig. (a) Fig. (b) Fig. (c)

2535507095120150185240300400

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.0470

0.92720.66850.49400.34260.24740.19680.16030.12920.10000.08150.0661

0.1410.1330.1240.1180.1130.1100.1070.1030.1000.0990.097

0.9380.6820.5090.3620.2720.2250.1930.1650.1420.1280.117

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.625

128152179218260294329371426478536

106127151185222253284322374422477

141171204254309355403462542619708

Fig. (a) Fig. (b)0.3 x De

Fig. (c)


Single-Core Cables, with Copper Conductors, XLPE Insulated,Tape Armoured and PVC Sheathed

APPLICATION Suitable for installations indoors: mostly in power supply stations and outdoors: in cable ducts, underground, and on cable trays for industries, switch-boards and power stations. Due to the good laying and mechanical characteristics, this cable is suitable when mechanical protection is required or in applications where mechanical damages are expected to occur.


CABLE CONSTRUCTION ConductorPlain annealed stranded circular compacted copper conductor (Class 2).





BeddingExtruded layer of Polyvinyl chloride (PVC).

ArmouringDouble layer of non-magnetic (aluminum) tapes.



Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Outer Jacket

Tape Armouring

Bedding

Metallic Screen

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Tapethickness

Approx. overall diameter




Cable Code

C316XF1BBBMRDXXI0MRC317XF1BBBMRDXXI0MRC318XF1BBBMRDXXI0MRC319XF1BBBMRDXXI0MRC345XF1BBBMRDXXI0MRC346XF1BBBMRDXXI0MRC347XF1BBBMRDXXI0MRC348XF1BBBMRDXXI0MRC349XF1BBBMRDXXI0MRC350XF1BBBMRDXXI0MRC351XF1BBBMRDXXI0MRC352XF1BBBMRDXXI0MFC353XF1BBBMRDXXI0MFC354XF1BBBMRDXXI0MFC755XF1BBBMRDXXI0MF


3.6 / 6 kV

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

0.500.500.500.500.500.500.500.500.500.500.500.500.500.500.50

20.822.023.225.026.628.129.631.534.237.240.444.648.652.960.9

6918189731220150017842061248230933769467459197290917511532

10001000100010001000100010001000100010001000500500500500

Electrical Data

25355070951201501852403004005006308001000

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.04700.03660.02830.02210.0176

0.92720.66840.49380.34230.24700.19620.15960.12830.09880.08010.06440.05230.04320.03670.0247

0.1720.1640.1520.1450.1380.1340.1290.1240.1200.1170.1140.1110.1080.1050.101

0.9430.6880.5170.3720.2830.2370.2050.1790.1560.1420.1310.1230.1160.1110.104

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

127151178217258291326366421473530592652705831

132157184224265298331369419464513564597622662

171207248308373426482548639723817924100610801201

14717821426632337042048056264073083092110051188

14417520926131736441447455863973384194910541296

116139163199237267298334381425473524562591643

116139164200239271303341393441496556610657743

Nominalareaof




AC at90 °C

Reactance(60 Hz)



touched TrefoilFlat

touched



Flatspaced

Fig. (a) Fig. (b) Fig. (d)

0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)Fig. (c)


Three-Core Cables, with Copper Conductors, XLPE Insulated,Tape Armoured and PVC Sheathed



CABLE CONSTRUCTION








ArmouringDouble layer of galvanized steel tapes.


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Bedding

Tape Armouring

Outer Jacket

Nominalareaof




AC at90 °C

Reactance(60 Hz)


Capacitance



Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic






Cable Code

C316XF3BBGMRDXXI0MRC317XF3BBGMRDXXI0MRC318XF3BBGMRDXXI0MRC319XF3BBGMRDXXI0MRC345XF3BBGMRDXXI0MRC346XF3BBGMRDXXI0MFC347XF3BBGMRDXXI0MFC348XF3BBGMRDXXI0MFC349XF3BBGMRDXXI0MFC350XF3BBGMRDXXI0MUC351XF3BBGMRDXXI0MU


3.6 / 6 kV

2535507095120150185240300400

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.10

0.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.0

0.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

0.500.500.500.500.500.500.500.500.500.500.80

37.840.443.247.050.754.157.761.667.674.282.9

22862716323740424967591568718200102091244416251

10001000100010001000500500500500400400

Electrical Data

2535507095120150185240300400

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.0470

0.92720.66850.49400.34260.24740.19680.16030.12920.10000.08150.0661

0.1410.1330.1240.1180.1130.1100.1070.1030.1000.0990.097

0.9380.6820.5090.3620.2720.2250.1930.1650.1420.1280.117

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.625

122146171208248280313352404451506

104125147180216245276312360405458

132160190235285325369419489555633


Tapethickness


Fig. (c)


Single-Core Cables, with Copper Conductors, XLPE Insulated,Wire Armoured and PVC Sheathed



medium voltage cables are designed and tested to meet or exceed the requirements of IEC 60502-2 standard and/or BS 6622 standard with rated voltage 3.8 / 6.6 (7.2) kV. However, can also supply a range of alternative designs to meet customer-specified requirements.

CABLE CONSTRUCTION ConductorPlain annealed stranded circular compacted copper conductor (Class 2).






ArmouringSingle layer of round non-magnetic (aluminum) wires.



Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Bedding

Wire Armouring

Outer Jacket

Nominalareaof




AC at90 °C

Reactance(60 Hz)



touched TrefoilFlat

touched



Flatspaced

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Wirediameter





Cable Code

C316XF1BBAMRDXXI0MRC317XF1BBAMRDXXI0MRC318XF1BBAMRDXXI0MRC319XF1BBAMRDXXI0MRC345XF1BBAMRDXXI0MRC346XF1BBAMRDXXI0MRC347XF1BBAMRDXXI0MRC348XF1BBAMRDXXI0MRC349XF1BBAMRDXXI0MRC350XF1BBAMRDXXI0MRC351XF1BBAMRDXXI0MRC352XF1BBAMRDXXI0MFC353XF1BBAMRDXXI0MFC354XF1BBAMRDXXI0MFC755XF1BBAMRDXXI0MF


3.6 / 6 kV

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

1.601.601.601.601.601.601.602.002.002.002.002.502.502.502.50

22.723.725.126.728.529.831.534.236.739.742.948.352.356.664.6

79992210941338164019162218273333424039497364257835977212208

10001000100010001000100010001000100010001000500500500500

Electrical Data

25355070951201501852403004005006308001000

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.04700.03660.02830.02210.0176

0.92720.66840.49380.34230.24690.19620.15950.12820.09860.07980.06410.05190.04260.03610.0246

0.1790.1700.1580.1490.1430.1380.1340.1300.1250.1220.1180.1170.1130.1100.106

0.9440.6900.5190.3730.2850.2400.2080.1830.1600.1460.1350.1280.1210.1160.109

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

127152178216256286317353399439473513551583626

131155180214249270292317346369388411434456493

118140164198234260286316353385410442472499540

116138161193225246268293321345362386409429465

1481792142653203664134695426116797578359071022

150182217267320361403453514571618676733784876

173208247303361402446495555608661722782841947


0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)Fig. (c)


Three-Core Cables, with Copper Conductors, XLPE Insulated,Wire Armoured and PVC Sheathed


APPLICABLE STANDARDS medium voltage cables are designed and tested to meet or exceed the requirements of IEC 60502-2 standard and/or BS 6622 standard with rated voltage 3.8 / 6.6 (7.2) kV. However, can also supply a range of alternative designs to meet customer-specified requirements.

CABLE CONSTRUCTION








ArmouringSingle layer of round galvanized steel wires.


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Bedding

Wire Armouring

Outer Jacket

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Wirediameter





Cable Code

C316XF3BBWMRDXXI0MRC317XF3BBWMRDXXI0MRC318XF3BBWMRDXXI0MRC319XF3BBWMRDXXI0MRC345XF3BBWMRDXXI0MFC346XF3BBWMRDXXI0MFC347XF3BBWMRDXXI0MFC348XF3BBWMRDXXI0MFC349XF3BBWMRDXXI0MFC350XF3BBWMRDXXI0MUC351XF3BBWMRDXXI0MV


3.6 / 6 kV

2535507095120150185240300400

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.10

0.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.0

0.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

2.002.502.502.502.502.502.502.502.503.153.15

40.043.646.450.253.957.360.964.870.879.386.8

307939524560547965217554862610069122871576819124

1000100010001000500500500500500400350

Electrical Data

Nominalareaof




AC at90 °C

Reactance(60 Hz)


Capacitance



2535507095120150185240300400

0.72700.52400.38700.26800.19300.15300.12400.09910.07540.06010.0470

0.92720.66850.49400.34260.24740.19680.16030.12920.10000.08150.0661

0.1410.1330.1240.1180.1130.1100.1070.1030.1000.0990.097

0.9380.6820.5090.3620.2720.2250.1930.1650.1420.1280.117

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.625

123146171208247278309345391431475

106126149182217245274307351389431

135163193238287327369417482541606

TECHNICAL DATA



Fig. (c)


Single-Core Cables, with Aluminum Conductors, XLPE Insulatedand PVC Sheathed

APPLICATION

Suitable for installations indoors: mostly in power supply stations and outdoors: in cable ducts, underground, and on cable trays for industries, switch-boards and power stations.


CABLE CONSTRUCTION

ConductorStranded circular compacted aluminum conductor (Class 2).






TECHNICAL DATA


Metallic Screen

Outer Jacket

Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Nominalareaof




AC at90 °C

Reactance(60 Hz)



touched TrefoilFlat

touched



Flatspaced

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic






Cable Code

A316XF1BB0MRDXXI0MRA317XF1BB0MRDXXI0MRA318XF1BB0MRDXXI0MRA319XF1BB0MRDXXI0MRA345XF1BB0MRDXXI0MRA346XF1BB0MRDXXI0MRA347XF1BB0MRDXXI0MRA348XF1BB0MRDXXI0MRA349XF1BB0MRDXXI0MRA350XF1BB0MRDXXI0MRA351XF1BB0MRDXXI0MRA352XF1BB0MRDXXI0MRA353XF1BB0MRDXXI0MRA354XF1BB0MRDXXI0MFA755XF1BB0MRDXXI0MF


3.6 / 6 kV

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

---------------

16.217.218.620.222.023.325.026.729.432.435.639.643.447.955.5

3133584285176307308459851215147018042237272934144257

1000100010001000100010001000100010001000100010001000500500

Electrical Data

25355070951201501852403004005006308001000

1.20000.86800.64100.44300.32000.25300.20600.16400.12500.10000.07780.06050.04690.03670.0291

1.53861.11300.82210.56840.41090.32520.26520.21170.16220.13070.10310.08190.06580.05410.0389

0.1530.1450.1360.1280.1230.1190.1160.1120.1090.1070.1040.1020.0990.0970.094

1.5461.1220.8330.5830.4290.3460.2900.2390.1950.1690.1470.1310.1190.1120.102

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

98117138168201228254287333375427485547610728

102122144176210237266300346389441499560620703

89106126154184210236268311352403461525590692

89106125154184209235267309349398453511570657

1081321581982422793183674355035866857939081131

1111351622032482863263764465145986978049161127

13216119424229534038744652760670381894110701265


0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)Fig. (c)


Three-Core Cables, with Aluminum Conductors, XLPE Insulatedand PVC Sheathed




CABLE CONSTRUCTION








TECHNICAL DATA


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Outer Jacket

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic






Cable Code

A316XF3BB0MRDXXI0MRA317XF3BB0MRDXXI0MRA318XF3BB0MRDXXI0MRA319XF3BB0MRDXXI0MRA345XF3BB0MRDXXI0MRA346XF3BB0MRDXXI0MRA347XF3BB0MRDXXI0MRA348XF3BB0MRDXXI0MFA349XF3BB0MRDXXI0MFA350XF3BB0MRDXXI0MFA351XF3BB0MRDXXI0MF


3.6 / 6 kV

2535507095120150185240300400

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.10

0.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.0

0.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

-----------

33.235.438.242.045.748.752.156.061.868.275.1

10451202142417642132248628643361415450406191

1000100010001000100010001000500500500500

Electrical Data

Nominalareaof




AC at90 °C

Reactance(60 Hz)


Capacitance



2535507095120150185240300400

1.20000.86800.64100.44300.32000.25300.20600.16400.12500.10000.0778

1.53871.11310.82210.56850.41100.32540.26540.21200.16260.13120.1037

0.1410.1330.1240.1180.1130.1100.1070.1030.1000.0990.097

1.5451.1210.8310.5810.4260.3430.2860.2360.1910.1640.142

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.625

99118139169202229256289335377429

8299117144172197221252293333382

109132158197240276313361425488566


Fig. (c)


Single-Core Cables, with Aluminum Conductors, XLPE Insulated,Tape Armoured and PVC Sheathed



CABLE CONSTRUCTION






BeddingExtruded layer of Polyvinyl chloride (PVC). ArmouringDouble layer of non-magnetic (aluminum) tapes.

Outer JacketExtruded layer of Polyvinyl chloride (PVC).

Note: The conductor screen, XLPE insulation and the insulation screen are extruded simultaneously in one process using triple extrusion method (Continuous Vulcanization Line). Triple extrusion method not only assures clean interfaces between the insulation and stress control layers, but also assures a construction free of Partial Discharge with high operational reliability.

TECHNICAL DATA


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Outer Jacket

Tape Armouring

Bedding

Metallic Screen

Nominalareaof




AC at90 °C

Reactance(60 Hz)



touched TrefoilFlat

touched



Flatspaced

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Tapethickness





Cable Code

A316XF1BBBMRDXXI0MRA317XF1BBBMRDXXI0MRA318XF1BBBMRDXXI0MRA319XF1BBBMRDXXI0MRA345XF1BBBMRDXXI0MRA346XF1BBBMRDXXI0MRA347XF1BBBMRDXXI0MRA348XF1BBBMRDXXI0MRA349XF1BBBMRDXXI0MRA350XF1BBBMRDXXI0MRA351XF1BBBMRDXXI0MRA352XF1BBBMRDXXI0MRA353XF1BBBMRDXXI0MRA354XF1BBBMRDXXI0MFA755XF1BBBMRDXXI0MF


3.6 / 6 kV

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

0.500.500.500.500.500.500.500.500.500.500.500.500.500.500.50

20.822.023.225.026.628.129.631.534.237.240.444.648.652.960.9

5376046818029251053117513511616190922842789335440755077

1000100010001000100010001000100010001000100010001000500500

Electrical Data

25355070951201501852403004005006308001000

1.20000.86800.64100.44300.32000.25300.20600.16400.12500.10000.07780.06050.04690.03670.0291

1.53861.11300.82200.56830.41080.32510.26500.21150.16190.13030.10260.08130.06500.05330.0387

0.1720.1640.1520.1450.1380.1340.1290.1240.1200.1170.1140.1110.1080.1050.101

1.5481.1250.8360.5860.4330.3510.2950.2450.2020.1750.1530.1370.1260.1180.109

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

98117138168201227254287331374424481540597694

103122143175208235261294337376422472513549593

90108128156187212237269311350399454508560635

91108127156185210235265305342387436479517569

1121351632032462843233714395055866827858911078

1141391662072522903293784455115906837758671022

1331611932412923353804355105826687688589441063


0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)Fig. (c)


Three-Core Cables, with Aluminum Conductors, XLPE Insulated,Tape Armoured and PVC Sheathed

APPLICATION

Suitable for installations indoors: mostly in power supply stations and outdoors: in cable ducts, underground, and on cable trays for industries, switch-boards and power stations. Due to the good laying and mechanical characteristics, this cable is suitable when mechanical protection is required or in applications where mechanical damages are expected to occur.



CABLE CONSTRUCTION








ArmouringDouble layer of galvanized steel tapes.


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Bedding

Tape Armouring

Outer Jacket

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Tape thickness





Cable Code

A316XF3BBGMRDXXI0MRA317XF3BBGMRDXXI0MRA318XF3BBGMRDXXI0MRA319XF3BBGMRDXXI0MRA345XF3BBGMRDXXI0MRA346XF3BBGMRDXXI0MFA347XF3BBGMRDXXI0MFA348XF3BBGMRDXXI0MFA349XF3BBGMRDXXI0MFA350XF3BBGMRDXXI0MFA351XF3BBGMRDXXI0MU


3.6 / 6 kV

2535507095120150185240300400

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.10

0.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.0

0.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

0.500.500.500.500.500.500.500.500.500.500.80

37.840.443.247.050.754.157.761.667.674.282.9

18242074236027883242372242134807577868649081

10001000100010001000500500500500500400

Electrical Data

Nominalareaof




AC at90 °C

Reactance(60 Hz)


Capacitance



2535507095120150185240300400

1.20000.86800.64100.44300.32000.25300.20600.16400.12500.10000.0778

1.53871.11310.82210.56850.41100.32540.26540.21200.16260.13120.1037

0.1410.1330.1240.1180.1130.1100.1070.1030.1000.0990.097

1.5451.1210.8310.5810.4260.3430.2860.2360.1910.1640.142

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.625

95113133162192218244275318357406

8197114140168191215244284321368

103124147183221253287328385439508

TECHNICAL DATA



Fig. (c)


Single-Core Cables, with Aluminum Conductors, XLPE Insulated,Wire Armoured and PVC Sheathed

APPLICATION




CABLE CONSTRUCTION





Metallic ScreenFlat plain copper tape helically applied over the insulationscreen with suitable overlap.


ArmouringSingle layer of round non-magnetic (aluminum) wires.


TECHNICAL DATA


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Bedding

Wire Armouring

Outer Jacket

Constructional Data


3.6 / 6 kV

Nominalareaof




AC at90 °C

Reactance(60 Hz)



touched TrefoilFlat

touched



Flatspaced

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Wirediameter





Cable Code

A316XF1BBAMRDXXI0MRA317XF1BBAMRDXXI0MRA318XF1BBAMRDXXI0MRA319XF1BBAMRDXXI0MRA345XF1BBAMRDXXI0MRA346XF1BBAMRDXXI0MRA347XF1BBAMRDXXI0MRA348XF1BBAMRDXXI0MRA349XF1BBAMRDXXI0MRA350XF1BBAMRDXXI0MRA351XF1BBAMRDXXI0MRA352XF1BBAMRDXXI0MRA353XF1BBAMRDXXI0MRA354XF1BBAMRDXXI0MFA755XF1BBAMRDXXI0MF

25355070951201501852403004005006308001000

5.856.908.109.7011.3012.6014.1015.8018.1020.5023.1026.5030.0534.0040.00

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

2.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.3

0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076

1.601.601.601.601.601.601.602.002.002.002.002.502.502.502.50

22.723.725.126.728.529.831.534.236.739.742.948.352.356.664.6

64570880292010651185133216021865217925833295389946725753

1000100010001000100010001000100010001000100010001000500500

Electrical Data

25355070951201501852403004005006308001000

1.20000.86800.64100.44300.32000.25300.20600.16400.12500.10000.07780.06050.04690.03670.0291

1.53861.11300.82200.56830.41080.32500.26500.21140.16180.13020.10240.08100.06460.05280.0387

0.1790.1700.1580.1490.1430.1380.1340.1300.1250.1220.1180.1170.1130.1100.106

1.5491.1260.8370.5880.4350.3530.2970.2480.2050.1780.1560.1420.1310.1220.113

0.2550.2830.3170.3620.4070.4440.4860.5330.5770.6000.6250.6640.7420.8310.992

99118139169200225251281321357394437479518561

103121142171200221242266296320344372399425463

92109128156185208230257291322351386421453495

91108127153180200220244272297320347374399435

115139166207250288326372435495562640721800908

117142169210252288324368424477530593656715805

135163194240288326364409467520577643709775878


0.5 x De

Fig. (e)

0.5 x De

Fig. (f)

De

0.5 x De

Fig. (g)Fig. (c)


Three-Core Cables, with Aluminum Conductors, XLPE Insulated,Wire Armoured and PVC Sheathed

APPLICATION




CABLE CONSTRUCTION








ArmouringSingle layer of round galvanized steel wires.


Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Metallic Screen

Filler

Bedding

Wire Armouring

Outer Jacket

Constructional Data

Conductor

Nominalarea of

conductor




C.S XLPE I.S

Min. Nom. Min.

Approx. metallic


Wirediameter





Cable Code

A316XF3BBWMRDXXI0MRA317XF3BBWMRDXXI0MRA318XF3BBWMRDXXI0MRA319XF3BBWMRDXXI0MRA345XF3BBWMRDXXI0MFA346XF3BBWMRDXXI0MFA347XF3BBWM

Documents

Medium Voltage Power Cables - AEC Online...Preface The Medium Voltage Power and Special Application Cables are used in various indoor and outdoor applications in industries, switchboards