cable drum guide

8/8/2019 Cable Drum Guide

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CABLE

DRUM

HANDLING


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Ke e p t h e ca b le p r o t e ct e d u n t il it i s u s e d

Dr u m h a n d lin g a n d s t o r a g e g u id e

A Cable is a valuable product. If handling is not done correctly, the drum and in turn the Cablewound over it can be damaged. At times, damage might not be d iscovered un til after installation,when repairs can be extremely difficult / expensive.

The purpose of th is guide is to illustrate, how damages canbe avoided by correct handling and storage practices.

* Ke e p t h e d r u m u p r ig h t

The drum is designed to be handled in upright position. Itmay not sustain if lifted lying flat. When kept upright, thecable layers will not get entangled. This would obviate problemsduring laying.

Always store and move the drum in an upright position. In no case, the drums be stored ' on the flat'that is with flange horizontal.

* Rol l in d ir ec t ion o f a r row s on ly

When the drum must be rolled for some reason, always rollthe drum in the direction of arrow. This way, the cable willnot unwind or loosen on the drum.

However, this does not mean that the drum can be rolled freely for any distance. Limit rolling distanceto five metres. If it is rolled beyond this limit, the cable wind will come too tight and cut off the ropeholding the cable end. This may deform the cable and make it unfit for use.

Once placed in position, use proper stoppers to prevent drum from rolling.

* Lif t t h e d r u m w i t h o u t d a m a g e

When lifting the drum, use a shaft through the centre of thedrum and a spreader beam.

If these are not available, lift with as long a rope as possible,so that the sides of the drum are not damaged. However,

make sure that the cable head is not pinched between ropeand drum.

Ensure that drum thus hoisted is well balanced. Also, ensure that it is not touching other drums.

Take care, not to give any impact to the drum being lowered. In case a cable drum must be temporarilyin a waiting position, keep it hoisted. Do not repeatedly put it down.

Gulf Ca b le & Electr ica l In d . Co .

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Gulf Ca b le & Elect r ica l In d . Co .

* Han dl ing w ith fo rk l if t

The forks must be longer than the width of the

drum being lifted. Preferably, different widths ofdrums should be marked on the forks enablingthe operator to select the correct position for thegiven drum size.

When moving the drum, tilt the truck mast so that

the drum remains in the fork and the points don'ttouch the ground. Raise the forks of the forklift at least 6 to 8 inches above ground. Insufficientclearance may cause the drum to be dragged on the ground and eventually damaged or droppedoff the forks, especially if the ground surface is uneven.

Don' t release the drum until the truck has stopped completely. Don' t push the drum with the truck.

Leave sufficient room between drums so that the fork doesnt damage the drum.

* Na i l w ith cau t ion

Avoid punching nails into cable drums. If nailing is utmost necessary, make sure that they don' t touchthe cable.

* Se c u r e t h e d r u m s f ir m ly

The round shaped cable drum rolls easily. It is in a very unstablestate because it's centre section is vacant and the whole

weight rests on it's peripheral section.

Make sure that each drum is provided with stoppers toprevent from rolling during storage.

It is preferable that large drums should be lifted from thebase onto triangular or square wedges. The wedges shouldbe positioned by the flanges or the full width of drum.

* Avoid s t a cking


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Stacking of drums should be avoided.

* Fa s t e n t h e d r u m s f ir m l y

During transportation, the drum shall be fastened to the base through the centre hole or across the

flanges with wires or ropes. To prevent movement of drums, a combination of wedges and transportationsupport should be used and tied down front and rear.

* Do n ' t d r o p d r u m s

The drums must not be droppedfrom the vehicle. The drum is tobe lifted either by winch or fork-lift.

When neither of this is available, amakeshift ramp with approximateinclination of 1:4 should beconstructed. The cable drum shouldthen be rolled over this ramp bymeans of ropes and winches.

Additionally, a sand bed at the footof the ramp may be made to brakethe rolling of cable drum.

Make sure when unloading, the drum doesn't strike another drum.

* St o r a g e f o r l o n g e r p e r io d s

The site chosen for storage of cable drums must be level and dry. It should have a firm, preferably

concreted surface. This will avoid sinking of the drums and difficulty in subsequent shifting.

All drums should be stored in such a manner as to leave sufficient space between them for aircirculation.

During storage, the drum should be rolled to an angle of 90o

once every three months. Also, tie bolts

shall be checked and tightened at regular intervals.

Always turn a cable drum using turn table. Never use crow bar if turn table is not available. Two wellgreased plates can be used instead.


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Storage of cable drums under shed is not essential unless the storage is for very long period. However,the cable drums shall be protected from direct sun light by covering them by tarpau lin or thick blackpolyethylene sheet.

* Rew ind ing

When for any reason, it is necessary to rewind a cable on to another drum, the barrel of the drumshould have a diameter not less than that of the original drum.

It is utmost important while rewinding to avoid dragging of the cable against drum flanges or sharp

edges.

Avoid pulling the cable across long unsupported spans. Provide freely rotating roller supports.

Do not pull a cable with powered vehicle.

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MANUFACTURING

PROCESS


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XLPE Ca b le s :

Electric power transmission and distribution from source to the user can be placed into three categories

High tension networks : Beyond 33 kV

Medium tension networks : upto 33 kV

Low voltage networks : upto 1 kV

For over a century, impregnated paper insulated cab les held the sway in all the above categories.Impregnated paper has excellent electrical properties. Moreover, it has capacity to withstand a highdegree of thermal overload without excessive deteriorat ion. But it' s hygroscopic nature requires theprovision of a metal sheath to prevent moisture contamination.

There was therefore a long felt need for power cable insulation material which has a combinationof non hygroscopic nature of thermoplastic materials, electrical properties of polyethylene and

operational advantages of impregnated paper.

XLPE (cross linked polyethylene) has come up as the dream material. Since several decades now, ithas steadily replaced impregnated paper.

What is XLPE ?

Low density polyethylene polymer is a compound of carbon and hydrogen having linear molecular

structure. These long chains being independent, slide with respect to one another, resulting thermoplasticproperty of the material.

Po lye thy l ene

In cross linking process, these chains are randomly bonded to one another, thus converting theindependent molecules to a three dimensional linked network. Now, slippage between molecularchains is prevented and material becomes thermosetting.

XLPE

C C C C C C

H H H H H H

H H H H H H

C C C C C C

H H H H H H

H H H H H

C C C C C C

H H H H H

H H H H H H


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Com pa r ison o f XLPE w ith o t he r in su la t ion m a t e r ia l s

Properties XLPE PE EPR PVC Imp reg. pape r

Normal 90 70 90 70 65

Rated Temp C Emergency 130 90 130 95 110

Short Circuit 250 140 250 160 160

2.35 1.4 0.95 1.25 to 2.5 NA

Elongation % 500 to 600 300 to 600 300 to 800 200 to 400 3

100 C Excellent Good Excellent Good Good

Ageing Resistance 120 C Excellent Melts Good Poor Fair

150 C Good Melts Fair Poor Poor

Heat deformation at 150 C Good Melts Excellent Poor GoodRelative Permitivity 2.4 2.3 3.3 8.0 3.5Specific Gravity g/cc 0.93 0.93 1.4 1.5 0.8

Solvent Resistance Good Good Poor Poor FairPower Factor (tan ) 4x10-4 4x10-4 4x10-4 100x10-3 2x10-3

Volume resistivity at 20 C - cm > 1015 > 1015 > 1015 > 1013 > 1014

Dielectric Constant 2.3 2.3 3 6 to 8 3.4 to 4Dielectric Strength kV/mm 50 50 25 to 40 20 to 35 40Splicing & Termination Easy Easy Easy Easy Not EasyEnvironmental Stress Cracking resistance Good Poor Poor Good NANecessity of hygroscopic protection Not Reqd. Not Reqd. Not Reqd. Not Reqd. Required

Single Core 15D-20D 15D-20D 15D-20D 15D-20D 20D-25DMulti Core 12D-15D 12D-15D 12D-15D 12D-15D 15D-20D

MechanicalStrength

Tensile Strengthkg/ mm2

As apparent from above tab le, XLPE has several advantages compared to other insulation materials.

Gulf Cable has experience of manufacturing XLPE insulated Cables for over 25 years. We have suppliedthousands of kilometres of low and medium voltage XLPE cables in Kuwait and neighbouring GCCcountries.

Allowable bending radius


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LV Ca b le s

Cable Egineering comprises of the art and science of selection of a suitable conductor, correctmaterial and method for insulation for sheathing and for mechanical and anti-corrosive protection

and finally, extension of design and manufacturing range to cover special field applications.

We have Quality Assurance System certified to ISO:9001-2000. Well defined and documentedprocedures cover all the stages of manufacturing, right from procuring of raw materials tilldispatch of finished products.

Quality checks have been built into the system. Dimensions and Propert ies are closely monitoredand checked at each processing stage as stipulated vide relevant Quality Assurance Plan. Onlythose products with " OK" status are taken to subsequent p rocess stage. Product with " NOT

OK" status are dealt with as per " non conformity handling system" .

1) Incoming Raw Mat erials:

Cable comprises of diverse raw materials like electrical grade Copper / Aluminium, XLPEcompound, various tapes, steel wires, PVC Compound ingredients etc.

Based on International specifications, customer stipulations and our long experience in the fieldof Cable Manufacturing, we have designed " Mate rial Specifications" covering all the rawmaterials. We observe a stringent " Supplier Evaluation and Approval" procedure. Only approvedraw materials are purchased from approved suppliers.

Raw materials thus procured are subjected to incoming inspection / tests and scrutiny of supplier's

test certificate in line with Quality Assurance Plan(s).

2) Wire d raw ing process:

Aluminium rods are purchased from the market while we have our own copper rod manufacturingplant.

Copper / Aluminium rods of standard diameter are drawn down to requisite diameters.

Depending on conductor type, th is may be multi stage process viz. rod break down followedby intermediate d rawing followed by fine wire drawing.

3) Con du cto r ma king process:

Depending on type of cable, conductor can be either Solid circular, Circular stranded (noncompacted), Circular Stranded (compacted), Stranded Sector shaped (90 /120 ) or Flexible /Extra Flexible.

Wires thus drawn are stranded together in concentric layers / bunched / compacted / shapedto form conductor.

4) Insulation:

PVC/XLPE Insulation is applied over conductor through extrusion process. Core identification isdone e ither by colouring of insulation, skin colouring or by printing numbers.


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5) Comp oun ding:

We formulate our own recipes of various types of PVC compounds necessary. The plant is fullycomputerized and automatically monitors quantities / mixing of necessary Ingredient s.

6) Core Stra nd ing : (multi core cables)

Required number (2/3/4...) of such cores are stranded together to form a cable assembly.

If necessary to achieve circularity, fillers are provided in central / peripheral interstices as required.

7) Inn er She at hing:

A common covering is applied over stranded cores as above, either by extrusion of PVC Sheathor by lapping of plastic tape(s).

8) Armo uring:

Mechanical protection is provided by providing Galvanized Round Steel Wires (SWA). Alternatively,steel tapes may be given (optional)

9) Oute r Shea th ing :

Over the armour, a PVC outer sheath is extruded. This is normally of black in colour which has

best ultra violet resistance properties. Alternatively, other colours may be given as necessary.

Outer sheathing with special properties may also be given as per Customer's requirements.

10) Fina l Test ing :

Routine Tests, Type tests, Acceptance Tests and Optional Tests (if any) are carried out so as toensure integrity of manufactured cables.

Test certificates are issued as contractually agreed .

11) Packing:

Drums containing cables are packed to obviate possibility of damage during transportation.

12) Dispat ch:

Drums duly packed are sent to respective sites as cont ractually agreed.

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Inne r Sheath ing

ArmouringIncoming Raw Mate rials

Wire Draw ing pro cess

Cond uctor ma king process

Insulation

(at all inte rmediate stages)

Checking

Core Stran ding

Lapped Ext ruded

Outer Sheat hing

Final Testing

Packing

Dispatch


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MV Ca b les

We have Quality Assurance System certified to ISO:9001-2000. Well defined and documentedprocedures cover all the stages of manufacturing, right from procuring of raw materials till

dispatch of finished products.

Quality checks have been built into the system. Dimensions and Properties are closely monitoredand checked at each processing stage as stipulated vide relevant Quality Assurance Plan. Onlythose products with " OK" status are taken to subsequent process stage. Product with " NOTOK" status are dealt with as per " non conformity handling system" .


Cable comprises of diverse raw materials like electrical grade Copper / Aluminium, XLPE & semi-conducting compounds, various tapes, steel wires, PVC Compound ingredients etc.

Based on International specifications, customer stipulations and our long experience in the field

of Cable Manufacturing, we have designed " Material Specifications" covering all the rawmaterials. We observe a stringent " Supplier Evaluation and Approval" procedure. Only approvedraw materials are purchased from approved suppliers.

Raw materials thus procured are subjected to incoming inspection / tests and scrutiny of supplier'stest certificate in line with Quality Assurance Plan(s).

2) Wire dra w ing pro cess:



Depending on conductor type, th is may be multi stage process viz. rod break down followedby intermediate d rawing followed by fine wire drawing.


Normally for MV Cables, conductor is Circular Stranded (compacted)

Wires thus drawn are stranded together in concentric layers and compacted to form conductor.

4) Insulation:

All XLPE Cables above 3.3 kV grade are provided with both conductor shielding and insulationshielding consisting of extruded semi-conducting compound.

Conductor shielding, XLPE Insulation and Insulation shielding are all extruded in one operationby special extrusion process to ensure perfect bonding between the layers.

5) Cop pe r Tap ing:

Metallic part of insulation shielding is provided by helically lapped copper tape.


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3 such cores are stranded together to form a cable assembly.


7) Comp oun ding: We formulate our own recipes of various types of PVC compounds necessary.The plant is fully computerized and automatically monitors quantities / mixing of necessaryIngredients.


A common covering is applied over stranded cores as above, by extrusion of PVC Sheath.

9) Armo uring:

Mechanical protection is provided by providing Galvanized Round Steel Wires (SWA). Alternatively,

steel tapes may be given (optional)

10) Oute r She ath ing:

Over the armour, a PVC outer sheath is extruded. This is normally of Red in colour. Alternatively,other colours may be given as necessary.


11) Fina l Tes t ing :

Routine Tests, Type tests, Acceptance Tests and Optional Tests (if any) are carried out so as toensure integrity of manufactured cables.

Test certificates are issued as contractually agreed.

12) Packing:


13) Dispat ch:

Drums duly packed are sent to respective sites as contractually agreed.


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Incoming Raw Mate rials

Wire Drawing Process

Con du ctor Making Process

Checking

(at all inte rmediate stages)

Cop pe r Tap ing

Core Stran ding

Inne r SheathingExtruded

Armouring Outer Sheath ing

Final Testing

Packing

Dispatch

Insu lation (Triple Extru sion )

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4

LV Ca b le s (Le a d Sh e a t h e d )

We have Quality Assurance System certified to ISO:9001-2000. Well defined and documented

procedures cover all the stages of manufacturing, right from procuring of raw materials till dispatchof finished products.

Quality checks have been built into the system. Dimensions and Properties are closely monitored andchecked at each processing stage as stipulated vide relevant Quality Assurance Plan. Only thoseproducts with "OK" status are taken to subsequent process stage. Product with "NOT OK" statusare dealt with as per " non conformity handling system" .


Cable comprises of diverse raw materials like electrical grade Copper / Aluminium, XLPE compound,

various tapes, steel wires, PVC Compound ingredients etc.

Based on International specifications, customer stipulations and our long experience in the field ofCable Manufacturing, we have designed " Material Specifications" covering all the raw materials. Weobserve a stringent " Supplier Evaluation and Approval" procedure. Only approved raw materials are

purchased from approved suppliers.


2) Wire dra w ing process:



Depending on conductor type, this may be multi stage process viz. rod break down followed byintermediate drawing followed by fine wire drawing.


Depending on type of cable, conductor can be either Solid circular, Circular stranded (non compacted),

Circular Stranded (compacted), Stranded Sector shaped (90 /120 ) or Flexible / Extra Flexible.

Wires thus drawn are stranded together in concentric layers / bunched / compacted / shaped to form

conductor.

4) Insulation:

PVC/XLPE Insulation is applied over conductor through extrusion process. Core identification is doneeither by colouring of insulation, skin colouring or by printing numbers.

5) Comp oun ding:

We formulate our own recipes of various types of PVC compounds necessary. The plant is fullycomputerized and automatically monitors quantities / mixing of necessary Ingredients.


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Required number (2/3/4...) of such cores are stranded together to form a cable assembly.



A common covering is applied over stranded cores as above, by extrusion of PVC Shea th.

8) Lea d / Lea d Alloy She at hing :

An extruded sheath of Lead / Lead Alloy is provided so as to render the cable impervious to oils /

certain chemicals.

9) Sepa ration Sheat h:

Bedding of Extruded PVC sheath is applied over Lead Sheath.

10) Armo uring :


11) Oute r Shea th ing:

Over the armour, a PVC outer sheath is extruded. This is normally of black in colour which has bestultraviolet resistance properties. Alternatively, other colours may be given as necessary.



Routine Tests, Type tests, Acceptance Tests and Optional Tests (if any) are carried out so as to ensureintegrity of manufactured cables.


13) Packing:


14) Dispa tch:



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Insulation

Checking

(at all inte rmediate stages)Core Stran ding

Inne r Sheathing

Lead Sheathing

Sepa ration Sheath ing Armouring

Outer Sheat hing

Final Testing

Packing

Dispatch

Extruded


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MV Ca b le s (Le a d She a t h e d )

We have Quality Assurance System certified to ISO:9001-2000. Well defined and documented

procedures cover all the stages of manufacturing, right from procuring of raw materials till dispatchof finished products.

Quality checks have been built into the system. Dimensions and Properties are closely monitored and

checked at each processing stage as stipulated vide relevant Quality Assurance Plan. Only thoseproducts with "OK" status are taken to subsequent process stage. Product with "NOT OK" statusare dealt with as per " non conformity handling system" .


Cable comprises of diverse raw materials like electrical grade Copper / Aluminium, XLPE & semi-

conducting compounds, various tapes, steel wires, PVC Compound ingredients etc.

Based on International specifications, customer stipulations and our long experience in the field ofCable Manufacturing, we have designed " Material Specifications" covering all the raw materials. Weobserve a stringent " Supplier Evaluation and Approval" procedure. Only approved raw materials arepurchased from approved suppliers.


2) Wire dra w ing pro cess:



Depending on conductor type, this may be multi stage process viz. rod break down followed byintermediate drawing followed by fine wire drawing.


Normally for MV Cables, conductor is Circular Stranded (compacted)

Wires thus drawn are stranded toge ther in concentric layers and compacted to form conductor.

4) Insulation:

All XLPE Cables above 3.3 kV grade are provided with both conductor shielding and insulation shielding

consisting of extruded semi-conducting compounding.

Conductor shielding, XLPE Insulation and Insulation shielding are all extruded in one operation byspecial extrusion process to ensure perfect bonding between the layers.

5) Cop pe r Tap ing:

Metallic part of insulation shielding is provided by helically lapped copper tape.

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6) Core Stra nd ing: (multi core cables)

3 such cores are stranded together to form a cable assembly.


7) Com pou nd ing:

We formulate our own recipes of various types of PVC compounds necessary. The plant is fully

computerized and automatically monitors quantities / mixing of necessary Ingredients.


A common covering is applied over stranded cores as above, by extrusion of PVC Shea th.

9) Lea d / Lea d Alloy She at hing :

An extruded sheath of Lead / Lead Alloy is provided so as to render the cable impervious to oils /certain chemicals.

10) Sepa ration Sheat h:

Bedding of Extruded PVC sheath is applied over Lead Sheath.

11) Armo uring:


12) Oute r Shea thing:

Over the a rmour, a PVC outer sheath is extruded. This is normally of Red in colour. Alternatively,other colours may be given as necessary.



Routine Tests, Type tests, Acceptance Tests and Optional Tests (if any) are carried out so as to ensureintegrity of manufactured cables.


14) Packing:


15) Dispat ch:



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In su la tio n (Trip le Ext ru sio n) (a t all in term ed iat e st ag es)

Checking

Cop pe r Tap ing

Core Stran ding

Inne r SheathingExtruded

Separa tion Sheath ing

Armouring

Lead Sheathing

Outer Shea thingFinal Testing

Packing

Dispatch


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ACSR has long b een the backbone of overhead transmission and distribut ion systems. It h as altog ethe r

replaced older types of overhead condu ctors made of copper, which are now a d ays used on ly to meet

specific de ma nd s.

ACSR offers optimal strengt h fo r line design . It consists of Aluminium Condu ctor strande d a roun d a core

mad e of steel wires of high t ensile streng th. Variable stee l core strand ing en ables desired streng th t o be

achieved w ithou t sacrificing am pacity. These cond uctor are bare , mean ing th at t he re is no insulationor jacket covering th e cond uctor.

OVERHEAD CONDUCTORS


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In ord er to ob viate steel oxidat ion (rusting) owing t o we ath er, a coating o f non -oxidizing g rease is no rmally

app lied to steel cores. One o r mo re layers of alum inium wires can , if requ ired, be sup plied pa rtially or fully

greased.

Conductor used in low voltage networks are all aluminium conductors (AAC).

The ba re alum inium an d ACSR condu ctors liste d vide cata loge Bare cond uctors are suitab le for installation

in all practical spans o n t ransmission to wers, rang ing fro m lon g distan ce EHV tran smission lines to sub-

service spans at distribution or utilization voltages.

The cho ice o f con du cto r size, type a nd streng th should ta ke into accou nt factors such as electrical load ,

voltag e reg ulation, corona losses, ice an d wind loading, extreme tem pera ture s and vibrat ion. In case any

assistan ce is need ed for evaluat ion of t hese facto rs as the y apply to specific installations, please do n ot

hesitat e to cont act our ma rketing division.

Hard drawn Bare Copper conductors (HDBC), PVC covered hard drawn copper conductors (HDBC/PVC) are

used fo r spe cial app lications.

Soft Draw n Bare Copp er cond ucto rs (SDBC) are u sed for e art hing pu rpo ses.

OVERHEAD CONDUCTORS

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CROSS

SECTIONAL

DRAWINGS


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Not to scale

SINGLE CORE NON SHEATHED CABLES

1. CONDUCTOR: STRANDED CIRCULAR COPPER

2. INSULATION: PVC.

1

2

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SINGLE CORE SHEATHED CABLES

1. CONDUCTOR : STRANDED CIRCULAR (COPPER / ALUMINIUM)

2. INSULATION : XLPE (CROSS LINKED PO LYETHYLENE ) / PVC

3. OUTER SHEATH : PVC

1

2

3


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Not to scale

3 CORE LV CABLES

1. CONDUCTER : STRANDED CIRCULAR (COPPER / ALUMINIUM)

2. INSULATION : XLPE (CROSS LINKED POLYETHYLENE ) / PVC

3. INNER SHEATH : EXTRUDED PVC

4. ARMOUR : GALVANISED STEEL WIRE

5. OUTER SHEATH: PVC.

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2

3

4

5


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Gulf Ca b le & Elect r ical In d . Co .

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4 CORE LV CABLES

Not to scale

1

2

3

4

5

1. CONDUCTOR: STRANDED SECTOR SHAPED (COPPER/ ALUMINIUM)

2. INSULATION: XLPE (CROSS LINKED POLYETHYLENE)/ PVC

3. INNER SHEATH: EXTRUDED/ LAPPED

4. ARMOUR: GALVANISED STEEL WIRE

5. OUTER SHEATH: PVC


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Not to scale

AUXILIARY CABLES (CONTROL CABLES)

1. CONDUCTOR : STRANDED CIRCULAR (COPPER)

2. INSULATION : XLPE (CROSS LINKED POLYETHYLENE) / PVC

3. INNERSHEATH : EXTRUDED PVC



1

2

3

4

5

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Not to scale

AUXILIARY CABLES (CONTROL CABLES)

1. CONDUCTOR: STRANDED CIRCULAR (COPPER)

2. INSULATION : XLPE (CROSS LINKED PO LYETHYLENE) / PVC




1

2

3

4

5


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Not to scale

SINGLE CORE LEAD SHEATHED LV CABLES

1. CONDUCTOR: STRANDED CIRCULAR (COPPER / ALUMINIUM)

2. INSULATION: XLPE (CROSS LINKED PO LYETHYLENE)/ PVC

3. INNER SHEATH: EXTRUDED PVC

4. METALLIC SHEATH: LEAD / LEAD ALLOY

5. SEPERATION SHEATH: EXTRUDED PVC

6. ARMOUR: ALUMINIUM WIRE


1

2

3

4

5

6

7

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Not to scale

2 CORE LEAD SHEATHED LV CABLES

1. CONDUCTOR : STRANDED CIRCULAR (COPPER/ ALUMINIUM)



4. METALLIC SHEATH : LEAD / LEAD ALLOY

5. SEPERATION SHEATH : EXTRUDED PVC



1

2

3

4

5

6

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1

2

3

4

5

6

7

Not to scale





5. SEPARATION SHEATH : EXTRUDED PVC



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Not to scale


1. CONDUCTOR: STRANDED SECTOR SHAPED (COPPER / ALUMINIUM)

2. INSULATION: CROSS LINKED POLYETHYELENE (XLPE) / PVC

3. INNER SHEATH: EXTRUDED PVC

4. METALLIC SHEATH: LEAD/ LEAD ALLOY

5. SEPERATION SHEATH: EXTRUDED PVC

6. ARMOUR: GALVANISED STEEL WIRE


1

2

3

4

5

6

7


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1

2

3

4

5

6

7

Not to scale







7. OUTER SHEATH: EXTRUDED PVC.

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LEAD SHEATHED AUXILIARY CABLES

1

2

3

4

5

6

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Not to scale




4. METALLIC SHEATH : LEAD/ LEAD ALLOY





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LEAD SHEATHED AUXILIARY CABLES

1

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Not to scale








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Not to scale

3 CORE LEAD SHEATHED MV CABLES

1. CONDUCTOR : STRANDED COMPACTED CIRCULAR (COPPER / ALUMINIUM)

2. CONDUCTOR SHIELD : EXTRUDED SEMICONDUCTING

3. INSULATION: XLPE (CROSS LINKED POLYETHYLENE)

4. INSULATION SHIELD: EXTRUDED SEMICONDUCTING

5. METALLIC SHIELD : COPPER TAPE (S)

6. FILLER : PP YARN






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Gulf Ca b le & Elect r ical In d . Co .

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3 CORE MV CABLES

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2

3

4

5

6

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10

Not to scale

1. CONDUCTOR : STRANDED COMPACTED CIRCULAR (COPPER/ ALUMINIUM)

2. CONDUCTOR SHIELD : EXTRUDED SEMICONDUCTING

3. INSULATION : CROSS LINKED POLYETHYLENE (XLPE)

4. INSULATION SHIELD : EXTRUDED SEMICONDUCTING

5. METALLIC SHIELD: COPPER WIRES + COPPER TAPE (S)

6. FILLERS : PP YARN

7. BINDING TAPE : FPP TAPE (S)





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Not to scale

34 CORE PILOT CABLE

1. SOLKOR, INTERTRIPPING AND INTERLOCKING PAIRS, (SCREENED) 2.5 sq . m m COPPER CONDUCTOR. PE INSULATION.

2. COPPER TAPE SCREEN FOR SOLKOR, INTERTRIPPING AND INTERLOCKING PAIRS.

3. TELEPHONE AND TELEMETRY PAIRS (UNSCREENED 0.63 5 sq . m m. COPPER CONDUCTOR.PE INSULATION.

4. WRAPPING ON SCREENED PAIRS

5. NON HYGROSCOPIC FILLERS.

6. PE BEDDING OVER LAID UP CORES.

7. OVERALL SCREEN WITH COPPER TAPE.

8. PE INNER SHEATH.

9. GALVANISED STEEL WIRE ARMOUR

1

2

3

4

5

6

7

10

8

9

cable drum guide

Documents