The total installed capacity of manufacture are as follows:-

• Power Cables (PVC / XLPE) 150-175 km per month (Assorted sizes)
  
  
• Control Cables (PVC / XLPE) 300-350 km per month ( " ).
  
  
• Instrumentation (PVC / XLPE) 250-300 km per month ( " ) .
  
  
• Thermo couple Extension 200-250 km per month ( " ).
  

PVC and XLPE LT Power Cables
LT Power cables with PVC or XLPE insulation of voltage grade upto 3.3KV conforming to various Indian and International Standard Specifications.

Cross Linked Polyethylene (XLPE)
XLPE means cross-linked polyethylene or vulcanized polyethylene.The basic material is low density polyethylene. Polyethylene is a thermoplastic material consisting of long chain of hydrocarbon molecules. At elevated temperatures these molecules tend to more relative to one another so that the material becomes increasingly deformable and will eventually melt at the temperature around 110o

By means or process similar to the vulcanization of rubber the polyethylene molecules can be cross- linked. The process of cross - linking or vulcanization consists of producing chemical bonds at interval between the long molecular chain to give a " ladder" effect which prevents slippage between molecules. As a result of cross-linking the material becomes heat resistant and does not soften at higher tempera- tures.

Further it has better resistance to stress cracking and good resistance to ageing in hot air. With the change of structure there in no adverse effect on electrical properties.

Advantages of XLPE CABLES

Dielectric losses are very small.
Higher current carrying capacity.
Higher short circuit rating 250oC as against 160°o C for PVC.
KEI XLPE can retain flexibility down upto - 40oC.
Jointing and Termination is easy.
Light in weight.
They are not prone to fatigue damages due to vibrations or loading cycles.
Has better resistance to most chemicals, oils, acids, etc.
Can be installed along cable routes without elevation limitations.

Please click on any of the following links to download tech. specs and other details :

Cable description  : The cable is constructed using a fibre reinforced plastic central strength member. Around this are stranded polybutylene terapthalate loose tubes (Containing single mode fibres and thixotropic jelly)  and polyethylene fillers, if required. The Interstices are filled with water repellant compound and a polyester tape iswrapped over the core.  This is sheathed with black high density polyethylene.For a  duct cable, an anti-termite Nylon 12 jacket is extruded over the sheath.For an armoured cable, the sheath is covered with a corrugated steel tape over which is extruded a layer of high density polyethylene.  For an aerial cable, a layer of high modulus aramid yarn is applied over the sheath as a peripheral tension relief member, and a layer of high density polyethylene is extruded as an outer jacket.

General Construction RPG Cables Ltd., Catalogue 3rd page No.2 Photograph 2

Copper conductor, polyethylene insulated, colour coded, twisted into pairs, pairs bunched into units/ super units with colour coded binders, super units cabled to form cable core, jelly filled, polyester type wrapped as heat barrier, flooded with jelly and laminated aluminium longitudinaly applied as electrostatic screen, polyethylene sheathed, galvanised steel type armoured over a bedding of polyethylene tapes and jacketed overall with polyethylene in black colour.

Cables can be offered as per International specification as well as indivitual customer requirements.

ELECTRICAL CHARACTERISTICS

Cable description           :       Polyethylene Insulated  Jelly filled telephone cables.   

TECHNICAL DATA OF CABLE (Solid & FOAM skin PE)

Characteristics

ELECTRICAL CHARACTERISTICS

3 : Mechnical Characteristics :

The colour scheme of the unit binder for indentification will be :

The requisite number of super units will be assembled as indicated below to form the core .

The numbering of super units in a layer will be as per makeup of cable shown above.

COLOUR SCHEME FOR BINDER FOR SUPER UNIT IDENTIFICATION

Note : The numbering of super units will be clock-wise at running end.

Constructional data of  Jelly  Filled UnArmoured / Armoured Telephone Cables

(Solid and Foam skin Insulation)

CONSTRUCTION DETAILS : Colour Coding of the insulation will be uniform, smooth and coloured as shown below.  The colour will be identifiable under  normal lighting conditions.

COLOUR CODE FOR CONDUCTOR INSULATION

Notes:
a) 10 pair unit consists of colour code from pair 1 to 10
b) 20 pair unit consists of colour code from pair 1 to 20
c) The spare pair will be coloured as indicated in the table for 101 pair super unit only.

MAKE UP OF CABLE

1. Jointing Kits ( Fibre Optic Cables)Photograph 3 Fibre Optic Cable accessories Catalogue 2 Photographs should come this space
   
   

   Straight Through joints :	Fibre Count 6/12 , 24, 36, 48
   Branch Joints :	Fibre Count 6/12 , 24, 36, 48
   Fibre optic Splice Closure:	Suitable for a variety of cable constructions (eg. Sloted core, loose tube, central tube etc.,) upto 4 Organiser. Trays can be mounted.  Organiser -  trays have a capacity of upto 12 fibres. Hanging trays provide easy access to all fibre splices.

   
   
2. Optical Fibre Termination Box     :    Wall Mounting design Splicing Tool kit Duct Sealing Sleeves >
   

Jointing Kits (Jelly Filled Telephone Cables)

1. Thermoshrink kits  suitable for 20, 50, 100, 400, 800, 1200 pair. 0.5 / 0.63 Sq.mm
   Photograph 4 Raychem (XAGA 250) Catalogue Photograph or Raychem (XAGA 550) RTSF Catalogue photograph
2. Connector :0.4 to 0.63 Sq.mm  Duct Seal

• Connection & Disconnection modules
• Back mount frames
• Label holder
• Internal Boxes & mounting Hardwares
• Distribution boxes for upto 1000 pair
• Connection Boxes for upto 1000 pair
• Automatic Distributors for 3200 lines subscriber side
  Automatic Distributors for 2048 lines switching system side
• Surface mounted Boxes in Grey, Ivory, white.
• Face plates in keyed & unkeyed in white shutter.
• Outdoor distribution cabinets for upto 2400 pair.