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Page 1: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore
Page 2: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

CAllied Cables

1

INTRODUCTION

The foundation of Allied Group was laid by Mr. Aftab Ahsan in the year 1981, keeping in view the

growing demand of quality product of Manufacturing Copper Rod, Enameled Copper Wire and

Copper Strip. The Group Imported latest Furnace and plant for manufacturing Copper Rod. These

products initially were manufactured under the technical Collaboration of Hitachi Japan.

With the passage of time the Company groomed by providing quality product and making its own

position as market leader. The Company flourished Vertically & horizontally and by Grace of God

today we are the largest Manufacturer of Copper Rod with installed capacity of producing 80,000

Metric Tons per Annum. High Quality (Grade-A) LME Registered Copper Cathode is Continuously

Casted and hot rolled (Micro Processor Controlled) to produce Copper Rod of having purity of

99.99% which is basic raw material for all Wire & Cables Industries which includes House Wiring

Distribution & Power Cables, Enameled Copper Wires & Copper Strip Paper Coated & Bare and

The Copper Rod Produce by us conform to all International Quality Standards.

As stated above we are in the market for over 25 years producing Copper Rod & Copper

Enameled Wire, Our products are widely used in the entire country in almost all Electrical

equipments. It is being tried & considered as most satisfactory product by our valued clients, In

this connection we reproduce on next pages three of the country's largest producers of best

quality equipments in Pakistan namely Siemens Pakistan Engineering Co. Ltd, Phillips Electrical

Industries of (Pakistan) Ltd. and Pak Elektron Ltd. popularly known as PEL.

The Company Goal is to accelerate further to use its best quality raw material in Pakistan resulting

in the reduction of cost with quality assurance by providing 99.99% pure quality Copper products

to produce Wire & Cables with the aim to reduce consumption of electricity by providing easy flow

of current with minimum resistance to reduce electricity Bill and optimum performance.

Telephone Cables.

Page 3: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

(TECHNICAL COLLABORATION )

2

Page 4: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Oc tober 31 , 2005

TO WHOM IT MAY CONCERN

This is to certify that we purchased 'MOON STAR' Brand

Copper Enameled Wire from M/S. ALLIED INDUSTRIES HUB

(PVT) LTD., Karachi since 1995.

Our entire requirement for manufacturing of transformer

and motors have been fulfilled by them and we are fully

satisfy for the material supplied by them as per our

specifications.

Further certified that we have not received any complaint

In quality during these years.

PAKISTAN ENGINEERING CO. LTD

SIEMENS

SIEMENS

(Irfan Umar)(M.Sohail)

3

Page 5: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

PHILIPS

PHILIPS

Philips Electrical Industries of Pakistan Limited

F-54, S.I.T.E., P.O. Box No. 7101, Karachi-75730. Tel: 021-2560071-82 Fax: 021-2563826 / 2562386

Jan 02 , 2003

TO WHOM IT MAY CONCERN

It is certified that we are procuring Enameled Copper Wire under the brand name 'Moon

Star' which is produced and supplied by M/s Allied Industries Hub (Pvt.) Limited,

Karachi.

We have been doing business with M/s Allied Industries since 1996 and maintain that our

entire requirements for Copper Wire have been fulfilled by them over these years with

the material being as per our specifications.

FAISAL RAZI AZEEM

Logistics Officer

Philips Lighting Pakistan

4

Page 6: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

PAK ELEKTRON LIMITED Works :

Phones:Grams :E-mail :

14-Km, Ferozepur Road, Lahore-54760, Pakistan. G. O. O. Box : 1614, Lahore - 540005811952 - 57 (6 Lines) Telex : 44249 PEL PK.PELEKTRON Lahore Fax : 5810156- 5822682c f m @ p e l . i c c i . l h r . e r u m . c o m . p k

No. P&P/- Date 0 8 - 11 - 9 8

To WHOM IT MAY CONCERN

Certified that we have been getting EnamelledCopper Wire "Moon Star Brand" produced & supplied byM/s.Allied Industries Hub (Pvt) Limited, Karachi since1985. We have also been using their Allied Copper Rod for manufacturing of Copper Strip.

Our entire requirement for manufacturing of transformers for WAPDA & KESC have been full filled by them& we found the material to our entire satisfaction,

for PAK ELECTRON LIMITED

(S.M. USMANI)GENERAL MANAGER PROD. (T&M)

5

Page 7: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

CAllied Cables

Cables for wiring installations 450/750 and 300/500 volt to BS 6004 (metric units)

have good physical and electrical properties

have bright colours for identification

are easy to handle and strip

are chemically inert (except in abnormal chemical concentrations)

are unaffected by dampness.

Allied Cables for wiring installations include conduit wires and flat surface wiring cables together witha range of circular multicore cables, which are made to Pakistan and British Standard qualityand dimensions are specified by renowned architects engineers and contractors for all type of domestic. Commercial, industrial and public buildings.

Allied Cables has been manufacturing Copper Rod & Enameled Wire since 1984 and are consistently expanding with passage of time. The cables described in this publication, which conform to the new British Standards in metric units, continue this progress in keeping with the legal adoption of metric standards in Pakistan.

LIST OF CABLES

PVC insulated, non sheathed general purpose cablesingle core 450/750 volts

PVC insulated, PVC sheathed light non flexible cables, circular single, twin, 3 core, 4-core and 5-core

300/500 volts

PVC insulated. PVC sheathed cables withoutearth continuity conductor, flat twin 300/500 volts

BritishStandard

Specification

BS 6004

BS 6004

BS 6004

Page No.

11

12-13

14

CAllied Cables

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Page 8: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

ALLIED Wiring Cables satisfy the requirements of the most exacting installation and the needs of

contractors for reliable easy to instal and readily available supplies of wiring cables for all types of buildings.

ALLIED Wiring Cables are suitable for industrial, domestic, public and commercial buildings, farms and garages. They withstand effects of dempness, building materials, corrosive atmosphere and mechanical damage.

ALLIED Wiring Cables are pliable enough to adapt to any configuration of wall surface yet arerigid enough to permit threading through holes or along runs. They are easy to strip and to terminatein wiring fittings or accessories.

ALLIED Wiring Cables Provide all round performance, reliability and ease of handling. They arereadily available from local branches and depots and users can rely on the technical backing and service of the AC organization .

General

Allied Cables to metric dimensions comply with the following British Standards andare suitable for all installations conforming to the Institution of Electrical Engineers (IEE)Regulations for the Electrical Equipment of Building and the relevant British Standardcodes of practice:

BS 6004 :

BS 6360 :

BS 6746 :

PVC insulated cables (non-armoured) for electric power and lighting (metric units)

Copper conductors in insulated cables and cores (metric units)

PVC insulation and sheath of electric cables (metric units)

CAllied Cables

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Page 9: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Insulation materials

Allied Cables PVC compounds which comply with BS 6746. PVC is brightly coloured for identification, is easy to strip and does not support combustion. It has good resistance to chemical attack generally and resists attack by most building materials, but it should not be allowed to remain in permanent contact with oils, greases, fats or creosote, nor with the fumes of substances or solutions used as wood preservantIt does not support mould growth and is suitable for used in tropical climates, but cables insulated other than Black PVC, should not be permanently exposed to direct tropical sunlight. PVC graduallyhardens as the temperature decreases but recovers its flexibility on returning to normal temperature

Polyvinyl chloride (PVC)

Operating temperatures Maximum service operating temperatures of 70 C for PVC insulated wiring cables and conduit wires indicate that a normal service life can be expected when the combined ambient temperature and the conductor temperature due to the current does not exceed these figures. PVC compound will withstandoccasional overloads of short duration due to fault currents without deterioration. If PVC wiring cables are being installed at temperatures below 0 C, care must be taken not to bend them sharply. It is preferable

to keep the cable in a warm place for 24 hours before�installation�under�these�condition.�

Current ratings In normal practice, the recommended current rating as given in the IEE Regulations for the Electrical Equipment of Buildings, should be followed. In cases of doubt or in exceptional circumstances, advice should be sought from the Allied technical advisory service.

Cable diametersThe diameters of the PVC cables given in this publication correspond to the nominal diameters given in BS 6004 subject to tolerances allowed.

CAllied Cables

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Page 10: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Installation

PVC (non-armoured) wiring cable to metric standards should be installed in accordance withIEE regulations, the following dimensions for fixing criteria being applicable.

Fixing criteria

Bending radius (IEE REGULATIONS)

Internal radil of bends for fixed wiring

Cable diameter or axis dimensions Bending radius

Not exceeding 10 mm10 mm to 25 mmexceeding 25 mm

75 mm100 mm450 mm

Spacing of clips(IEE REGULATIONS)

Overall diameter of cable* Horizontal runs Vertical runs

not exceeding 9 mm

exceeding 9 mm notexceeding 15 mm

exceeding 15 mm notexceeding 20 mm

exceeding 20 mm notexceeding 40 mm

250 mm

300 mm

350 mm

400 mm

400 mm

400 mm

450 mm

550 mm

ConstructionPVC wiring cables Conductor

Core insulation / identification

Plain annealed copper strand or single wire complying with BS 6360.

PVC complying with BS 6746 applied by extrusion and coloured as follows

for both circular and flat cables:

Single core - Red or black

Four core - Red, yellow, Two core - Red and black Three core - Red, yellow, blue

blue, black Five core - Red, yellow, blue, black and green

Sheath

PVC complying with BS 6746 applied by extrusion. Flat cables sheath coloured black sizes21 mm2 to 16 mm Circular cables single sheath coloured black or Grey on red or black core.

2 2Sizes 1.0 mm to 35 mm Multicore, twin, three, four and five core cables sheath coloured black2 2on all sizes 1 mm 16 mm .

PVC Conduit wires Conductor Plain annealed copper strand or single wire complying with BS 6360

Insulation

PVC complying with BS 6746 applied by extrusion, coloured red, black, yellow, blue, green.

Voltage The rated voltages recognized for the purpose of BSS 6004 are 300/500 V Multicore or 450/750 volts Single Core

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Page 11: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

TABLE 1

Details of conductors

Can be supplied both in solid and stranded formations.

These are supplied in COMPACTED with different wire sizes and varying number of wires, which

will not affect conductor resistance at 20 C.

Note: Compacting sometimes entails a change in the number and size of wires therefore conductor sizes

should be designated by nominal cross - sectional area rather than by stranding configuration.

Nominal

conductor

area Minimum

Number

of wires

Nominal diameter of

conductor

Maximum

plain conductor

resistance at 20 C

2mm ohm/1000 m

Compacted

circular

mm

1.13

1.38

1.78

2.55

3.12

4.05

5.10

6.42

7.65

8.90

10.70

12.60

14.21

15.75

17.64

20.25

22.68

25.65

28.80

32.70

-

-

-

-

-

-

-

-

7.34

8.54

10.27

12.10

13.64

15.12

16.93

19.44

21.77

24.63

27.98

31.45

18.1

12.1

7.41

4.61

3.08

1.83

1.15

0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991

0.0754

0.0601

0.0470

-

-

1

1

1

7

7

7

6

6

6

6

12

15

18

18

30

34

34

61

61

91

Circular

mm

1.0

1.5

2.5

4

6

10

16

25

35

50

70

95

120

150

185

240

300

400

500

630

+

+

*

*

*

*

*

*

*

*

*

*

*

Packaging Single Core Wiring cables are normally supplied in Box of 90 Metres length and others

supplied in coils.

Technical advisory serviceAllied Cables maintains a free technical advisory service for the selection and application of any type of

cable for further information please contact our Marketing Office.

CAllied Cables

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Page 12: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

TABLE 2

CIRCULARPVC insulated non-sheathed general purpose Cable 450/750 volt

- Single core

Nominal cross-sectional areaof conductor

mm 2

Radialthickness of insulation(nominal)

mm

Mean overalldiameter

(upper limit)

mm

Approximateweight of

cable

kg/100 m

1.0

1.5

2.5

4

6

10

16

25

35

50

70

95

120

150

185

240

300

400

500

630

0.7

0.7

0.8

0.8

0.8

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

2.0

2.2

2.4

2.6

2.8

2.8

3.05

3.3

3.9

4.8

5.4

6.8

8.0

9.8

11.0

13.0

15.0

17.0

19.0

21.0

23.5

26.5

29.5

33.5

37.0

41.0

1.55

2.13

3.45

5

7

12

18

28

38

51

72

99

123

151

188

246

307

394

493

629

- Please reffer to Table 1 for details on conductor size

- Size 1.0 mm2, 1.5mm2, 2.5mm2 are manufactured in solid conductor but on special request can be made in stranded conductor Cable Sizes 3/029, 3/036, 7/029 are also manufactured by us.

CAllied Cables

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Page 13: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

TABLE 3

CIRCULARCircular PVC insulated PVC sheathed 300/500 volt - Single Core

Nominal conductor

area mm 2

Radialthickness of insulation

mm

Approxthicknessof innercovering

mm

Radialthicknessof sheath

mm

Mean Overall diameter

LowerLimit

UpperLimit

mm

Approximateweight

of cable

kg/100 m

1.01.52.546

10162535

0.6

0.7

0.8

0.8

0.8

1.0

1.0

1.2

1.2

-

-

-

-

-

-

-

-

-

0.8

0.8

0.8

0.9

0.9

0.9

1.0

1.1

1.1

4.4

4.8

5.7

6.5

7.2

8.0

10.0

12.1

13.2

2.8

3.4

4.9

7.5

9.9

15.5

22.5

34.0

44.5

3.8

4.2

4.8

5.4

6.0

7.2

8.4

10.0

11.0

1.01.52.546

1016

0.60.70.80.80.81.01.0

0.40.40.40.40.40.60.6

1.21.21.21.21.21.41.4

7.68.49.6

10.511.515.016.5

8.510.011.212.013.017.020.0

8111521264360

Two Core

Three core

1.01.52.546

1016

0.60.70.80.80.81.01.0

0.40.40.40.40.40.60.8

1.21.21.21.21.41.41.4

7.88.8

10.011.012.515.518.0

9.210.512.013.015.519.021.5

10131825345477

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Page 14: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

TABLE 3

CIRCULARCircular PVC insulated PVC sheathed 300/500 volt - Four Core

Nominal conductor

area

mm 2

Radialthickness of insulation

mm

Approxthicknessof innercovering

mm

Radial thickness of sheath

mm

Mean overall diameter

LowerLimit

UpperLimit

mm

ApproximateWeightof cable

Kg/100m

1.0

1.5

2.5

4

6

10

16

0.6

0.7

0.8

0.8

0.8

1.0

1.0

0.4

0.4

0.4

0.4

0.6

0.6

0.8

1.2

1.2

1.2

1.4

1.4

1.4

1.4

8.4

9.6

11.0

12.0

14.0

17.0

20.0

9.8

11.5

13.0

14.5

17.0

20.5

23.5

12

16

23

30

44

68

98

1.0

1.5

2.5

4

6

10

0.6

0.7

0.8

0.8

0.8

1.0

0.4

0.4

0.4

0.6

0.6

0.6

1.2

1.2

1.2

1.4

1.4

1.4

9.2

10.0

11.5

13.5

15.5

18.5

10.5

12.0

14.0

16.0

18.5

22.0

14

18

26

38

54

82

Please reffer to Table 1 for details on conductor size

- Five core

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Page 15: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

TABLE 4

FLAT

Flat PVC insulated PVC sheathed 300/500 volt - Two core

Nominal

conductor

area

2mm

Radial

thickness of

insulation

mm

Radial Thickness

of sheath

mm

Mean overall

diameter

mm

Approximate

weight

Kg/1000 m

1.0

1.5

2.5

4

6

10

16

0.6

0.7

0.8

0.8

0.8

1.0

1.0

0.9

0.9

1.0

1.0

1.1

1.2

1.3

6.7

7.2

8.6

10.7

12.0

14.9

17.2

4.4

4.6

5.4

6.5

7.3

8.8

10.1

x

x

x

x

x

x

x

54

67

99

150

205

325

465

Pleas reffer to Table 1 for details on conductor size

CAllied Cables

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Page 16: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Current ratings for insulated cablesThe current ratings quoted in Tables 5 to 7 aregenerally as detailed in the relevant tables of the IEE Regulations. The head of each tablestates whether the current ratings relate to close or coarse excess-current protection. Where the class of excess-current protection differs from that stated in the heading of the table the appropriate rating factor must be applied.

Close excess-current protection Excess-current protection which will operate within fourhours at 1.5 times the designed load current of the circuitwhich it protects. Devices affording close excess-currentprotection include:

(I)

(ii)(iii)

(iv)

BS 88 fuses fitted with fuse links marked to indicate a class P or class Q1 fusing factor. Fuse fitted with fuse-links complying with BS 1361.Miniature and moulded-case circuit-breakers complying with BS 3871. Circuit-breakers set to operate at an overload not exceeding 1.5 times the designed load current of circuit.

Coarse excess-current protection

Excess-current protection which will not operate withinfour hours at 1.5 times the designed load current of the circuit which it protects. Devices affording coarse excess. Current protection include:

(i)

(ii)

BS 88 fuses fitted with fuse-links marked to include aclass Q2 or class R fusing factor. Semi-enclosed (rewirable) fuses complying withBS 3036: 1958.

The IEE “Defined conditions” of installations

The current ratings in the columns of the tables headed

“Defined conditions” apply to cables run under the

conditions defined below.

For cables spaced by distances less than those described

below, the current ratings in the columns headed “Clipped

direct to a surface....” Should be applied.

(a) Single core cables

(1) Two or three single core cables are installed one above

the other, fixed to the vertical surface of a wall or open

cable trench as follows, the distance between the wall and

the surface of the cable being at least 20 mm in each

instance.

Cables in which the conductor cross-sectional area does2not exceed 185 mm are installed at a distance between

centres of twice the overall diameter of the cable

Cables in which the conductor cross-sectional area2exceeds 185 mm are installed at a distance between

centres of about 90 mm.

The ratings for two cables may be applied with safety in

instances where such cables are installed in horizontal

formation on brackets fixed to a wall, spaced as indicated

above or touching throughout

(2) Three single core cables are installed in trefoil formation

fixed to the vertical surface of a wall or open cable

trench, the cables touching throughout and the distance

between the wall and the surface of the nearest cable being

at least 20 mm, or, alternatively, three single core cables

are installed in trefoil formation and laid on a non-metailic

floor, the cables touching each other and the floor through-

out.

The ratings given apply provided that the sheaths of single core metal sheathed cables are electrically bonded ateach end of the run.

The cables are assumed to be remote from iron, steel, or

ferro-concrete, other than the cable supports.

(B) Multicore cables,

(1) Cables of all types other than single core cables are

installed singly, fixed to the vertical surface of a wall or

open cable trench, the distance between the surface of the

cable and the wall being at least 20 mm in every instance.

Voltage drop.

Voltage drop is normally only of importance for cables of

voltage rating not exceeding 450/750 volts. If the installation

is to be in compliance with IEE Regulations, it is stipulated that

the voltage drop for any particular cable run must be such that

the total voltage drop in the circuit of which the cable forms a

part does not exceed 2 ½ per cent of the nominal voltage,

(i.e. 6 volts for a single-phase 240 volt supply).

Values of voltage drop are tabulated for a current of one

ampere for a run, i.e. For a distance of 1 m along the route

taken by the cables. And represent the result of the voltage

drops in all the circuit conductors. For balanced three.

Phase ac circuits, the values relate to the line voltage. For

any given run the values need to be multiplied by the length

of the run (in metres) and by the current (in amperes) that

the cables are to carry.

Example: Consider a route of 200 metres of cable, to be

installed in air and to carry 100 ampere load. The supply

voltage being 415 volt 3Ph. 50 Hz. And the cable to be

stranded copper PVC/SWA/PVC.

Let Vd be the voltage drop in volts

Vd=mV x I x L

1000or: mV=

Vd x 1000

1 x L

Where IL

mV

===

Current in amperesRoute length in metresApproximate voltdrop/ampere/metre

Maximum permissible volt drop = 2 ½ per cent of 415 volts = 10.4 volts

Substitute for current, route length and maximum permis-sible volt drop

then mV =10.4 x 1000

200 x 100= 0.52 mV

Where the actual current to be carried differes greatly fromthe current rating tabulated, the results obtained by multi-plying the tabulated voltage drop values in this wayare approximate only: for a more accurate assessment, allowance should be made for the change in conductorresistance with operating temperature.

It is considered that the most practical approach to thequestion of voltage drop is to tabulate those values whichrelated to the worst conditions, viz, where the phase angleof the load is equal to that of the cable. However, it shouldbe noted that in many cases knowledge of phase angle of the load is not readily available. For cables up to and

2including 120 mm the tabulated voltage drop values apply with sufficient accuracy where the power factor of the loadlies between 0.6 lagging and 1.0, and for large cables where the power factor of the load does not exceed 0.8 lagging. In cases outside this range the tabulated voltage values may be unduly conservative, and more exact calculations should be considered.

CAllied Cables

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Page 17: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Current rating factors For group of single core cables

Referring to Tables 5 and 6

For groups of c ircui ts unenclosed, the single circui t rat ings apply provided that:

(1) the horizontal clearance between circuits is:

(a) not less than six t imes the overall diameter of an individual cable, and

(b) not less than the overall width of an individual circuit, except that the horizontal

clearance need not in any case exceed 150 mm and

(2) the vertical clearance between circuits is not less than 150 mm and

(3) i f the number of circuits exceeds four, they are installed in a horizontal plane.

In all other cases, unless a more precise evaluation of current ratings has been made, based on experimental

or calculated data, the fol lowing factors are applicable:

Number of circuits (pairs of cables, single phase ac or dc)

Three cables per circuit, or four

where one is the neutral, three

phase ac

rating factor

2

0.80

3

0.69

4

0.62

5

0.59

6

0.55

8

0.51

10

0.48

12

0.43

14

0.41

16

0.39

18

0.38

20

0.36

Three cables per circuit, or four,

where one is the neutra, three

phase ac

Rating factor

Not applicable to three phase.

For groups of twin and multicore cables

Referring to Table 7

For groups of cables unenclosed, the single circuit ratings apply provided that:

(1) the horizontal clearance between cables is not less than six t imes the overall diameter of an individual

cable, except that the horizontal clearance need not in any case exceed 150 mm and

(2) the vertical clearance between cables is not less than 150mm, and

(3) i f the number of cables exceeds four, they are installed in a horizontal plane.

In all other cases, unless a more precise evaluation of current rating has been made, based on

experimental work or calculated data, the fol lowing factors are applicable:

Number of cables

Rating factor

Number of cables

Rating factor

2

0.80

10

0.48

3

0.70

12

0.45

4

0.65

14

0.43

5

0.60

16

0.41

6

0.57

18

0.39

8

0.52

20

0.38

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Page 18: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Table 5

Current ratings and associated voltage drop/amp/metre PVC insulated, non-armoured cables, with or without sheath, with copper conductors

Single core 450/750 voltConditions of Installation

Single circuit current ratings under conditions as listed below with

coarse excess-current protection. For other than single circuit and For close excess-current protection see rating factors below.

Ambient temperature 30 C

Nominalcrosssectionalarea

2 cables, single phaseac or dc

Currentrating

3 or 4 cables threephase ac

Volt drop/amp/metre

Volt drop/amp/metre

Volt drop/amp/metre

Volt drop/amp/metre

Currentrating

Currentrating

Currentrating

2 cables, single phaseac or dc

3 or 4 cables three phase ac

Clipped direct to a surface or on a cable tray.

bunched and unenclosed

2mm amp ampmV mV mV mVamp amp

1.0

1.5

2.5

10

16

25

35

11

13

18

24

31

42

56

73

90

40

27

16

10

6.8

4.0

2.6

1.6

1.2

9

11

16

22

28

39

50

66

80

35

23

14

8.8

5.9

3.5

2.2

1.4

1.0

13

16

23

30

38

51

58

89

109

40

27

16

10

6.8

4.0

2.6

1.6

1.2

12

15

20

27

34

46

61

80

98

35

23

14

8.8

5.9

3.5

2.2

14

1.0

Total volt drop between the consumer’s terminals and anyother point in the installation must not exceed 2.5 per cent of thenominal voltage.

The ratings in columns 3 and 5 relate to cables in metal ornon-metallic conduit and trunking. For cables in undergroundpipes and ducts, see IEE Regulations.

Current rating factors (see page 11)

For class of excess current protection The ratings tabulated may be multiplied by 1.33 where closeexcess-current protection can be assured as perIEE Regulations,

For ambient temperature Ambient temperatureRating factor for cables having coarse excess current protection Rating factor for cables having close excess current protection

25 C1.021.06

35 C0.970.94

40 C0.940.87

45 C0.910.79

50 C0.880.71

55 C0.770.61

60 C0.630.5

65 C0.440.35

Bunched and enclosed in conduit or trunkingConductor

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Page 19: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Table 6

Current ratings and associated voltage drop/amp/metre PVC insulated, non-armoured cables, with or without sheath, with copper conductors

Single core 450/750 voltConditions of Installation

Single circuit current ratings under conditions as listed below with

coarse excess-current protection. For other than single circuit and For close excess-current protection see rating factors below.

Ambient temperature 30 C

2 cables, single phase ac or dc

3 or 4 cables,three phaseac

2 cables, single phaseac or dc

3 or 4 cables, three phaseac

Flat or vertical (2 cables, single phase ac or dc, or 3or 4 cables, three phase ac)

Trefoil (3 cables, three phaseac)

Current Volt droplrating amp/metre

ac dc

Currentrating

Voltdrop/amp/metre

Currentrating

Volt drop/amp/ metre

ac dc

Currentrating

Voltdrop/amp/metre

Currentrating

Volt drop/ amp/ metre

Singlephaseac

dc Threephase ac

Currentrating

Voltdrop/amp/metre

2mm amp amp amp amp amp ampmV mV mV mV mV mV mV mV mV mV 2mm

1 2 3 45 6 7 8 9 10 11 12 13 14 15 16 17 18

507095120

150185240300

400500630

145185230260

----

---

0.970.710.560.48

0.910.630.450.36

125163195220

0.840.620.480.42

175220270310

0.930.650.480.40

355405480560

680800910

0.340.290.240.22

0.200.180.17

0.910.630.450.36

0.290.240.180.14

0.120.0860.068

160200240280

320365430500

610710820

----

---

----

---

----

---

----

---

0.820.590.450.38

0.340.300.270.25

0.240.230.22

195240300350

410470560660

8009101040

0.950.680.520.44

0.390.350.360.33

0.300.280.26

0.910.630.450.36

0.290.240.180.14

0.120.0860.068

0.850.620.490.43

0.390.360.380.35

0.330.310.30

170210260300

350400480570

680770880

0.800.590.420.34

0.290.250.220.19

0.170.160.15

507095120

150185240300

400500630

Total volt drop between the consumer’s terminals and anyother point in the installation must not exceed 2.5 per cent of thenominal voltage Please Refer IEE Regulations.

The ratings in columns 3 and 5 relate to cables in metal ornon-metallic conduit and trunking.

Current rating factors (see page 11)

For class of excess current protection The ratings tabulated may be multiplied by 1.33 where closeexcess-current protection can be assured.

For ambient temperature Ambient temperatureRating factor for cables having coarse excess current protection Rating factor for cables having close excess current protection

25 C1.021.06

35 C0.970.94

40 C0.940.87

45 C0.910.79

50 C0.880.71

55 C0.770.61

60 C0.630.5

65 C0.440.35

Bunched and enclosed in conduitor trunking

Clipped direct to a surface or on acable tray, bunched and unenclosed

Defined conditions (IEE Reg.) Con-ductor

Nominalcross-sectionalareaof con-ductor

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Page 20: Allied Cablesalliedgroup.com.pk/gwc.pdf · Allied Cables for wiring installations include conduit wires and flat surface wiring cables together with a range of circular multicore

Table 7

Current ratings and associated voltage drop/amp/metre

PVC insulated, sheathed, non-armoured cables with copper conductorsTwin and multicore 300/500 volt

Conditions of installation

Single circuit current ratings under conditions as listed below with

coarse excess-current protection. For other than single circuit and For close excess-current protection see rating factors below.

Ambient temperature 30 C

Total volt drop between the consumer’s terminals and anyother point in the installation must not exceed 2.5 per cent of thenominal voltage (see IEE Regulations. )

The ratings in columns 3 and 5 relate to cables in metal ornon-metallic conduit and trunking. For cables in undergroundpipes and ducts, see IEE Regulations,

Current rating factors (see page 11)

For class of excess current protection The ratings tabulated may be multiplied by 1.33 where closeexcess-current protection can be assured.

For ambient temperature Ambient temperatureRating factor for cables having coarse excess current protection Rating factor for cables having close excess current protection

25 C1.021.06

35 C0.970.94

40 C0.940.87

45 C0.910.79

50 C0.880.71

55 C0.770.61

60 C0.630.5

65 C0.440.35

Nominalcross-sectionalarea

2mm amp

Conductor Enclosed in conduit or trunking*

One twin cable,with or withoutearth-continuityconductor, singlephase ac or dc

One three corecable, with orwithout earth-continuity con-ductor, or onefour core cable, three phase

One twin cable,with or withoutearth-continuityconductor, singlephase ac or dc

One three corecable, with orwithout earth-continuity con-ductor, or onefour core cable, three phase

One twin cable,with or withoutearth-continuityconductor, singlephase ac or dc

One three corecable, with orwithout earth-continuity con-ductor, or onefour core cable, three phase

Clipped direct to a surface or ona cable tray and unenclosed

Defined conditions (IEE Reg.)Conductor

Current Voltdrop/rating amp/ metre

Current Voltdrop/rating amp/ metre

Current Voltdrop/rating amp/ metre

Current Voltdrop/rating amp/ metre

Current Voltdrop/rating amp/ metre

Current Voltdrop/rating amp/ metre

amp amp amp amp ampmV mV mV mV mV mV 2mm

1.01.52.5

4.0

6.0

10

1625

35

111318

34

30

40

5360

74

412817

11

7.0

4.1

2.61.7

1.2

91216

22

27

37

4753

65

352415

9.1

6.0

3.6

2.21.5

1.0

121521

27

35

48

6471

87

412817

11

7.0

4.1

2.61.7

1.2

101318

24

30

41

5462

72

352415

9.1

6.0

3.6

2.21.5

1.0

---

---

-

-

86

105

---

---

-

-

1.7

1.2

---

-

-

---

-

-

72

92

1.5

1.0

1.0

1.5

2.5

4.0

6.0

10

1625

35

---

---

Flat

cables

only

Circulrar

Cables

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Allied Manufacturing Products

A

B

C

D

E

Copper Rod

Enameled Copper Wire

Copper Strips all Types

Master Diesel Engine

Electric Wire & Cable in Complete Range which includes

1

2

3

4

5

6

7

8

9

10

Hard Drawn or Annealed Plain Copper solid / stranded conductors.

All Aluminum conductors AAC.

Aluminum conductor Steel Reinforced.

General Wiring Cable for Household, Buildings. Industrial Use.

Power Cables Armoured/Unarmoured with copper/Aluminium conductors.

Airport lighting Cables.

Welding Cables PVC Insulated.

Control Cables

Flexible Cables

Automobile cables

Note : Generally manufactured to B.S. Specification but can also be manufacturedto client requirement or any other international specification. All Products aretested to British Standards, Client requirement or any other international standard.Strict technical Control is maintained throughout manufacture to ensure high level of quality.

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