Process Description
   
 
Wire Drawing           

:

Wire to be drawn of required size on Wire Drawing Machine
Annealing

:

Drawn Copper wires are further simultaneously annealed
Stranding :

Required Conductor size to be manufactured with specified  design On Stranding Machine.

Insulation   : Conductor to be insulated with XLPE/ PVC/HDPE as per  required   Specification.
Core Rewinding & Curing :

Cores to be spark tested, rewound & cured with Specific  requirements.

Inner Sheathing : To be done with required specification on Sheathing Line.
Armouring :

To be done with required specification on Armouring Machine.

Outer Sheath : To be done with required specification on Sheathing Machine
Rewinding & Testing :

All cables are rewound on steel / wooden drums as per Customer’s requirement & tests are carried-out as per required Testing specification.

Packing :

All tested and passed cables are packed marked in required sized drums prior to dispatch.

   
  TYPICAL  EXAMPLES Of  DESIGN & CONSTRUCTION
   
  IS SPECIFICATION
 
Conductor:
EC grade Aluminum
8130 Conductor:
High Conductivity grade copper
Insulation:
XLPE/PVC type A or C
5831 Insulation :
XLPE / PVC type A or C
Inner Sheath :
Extruded / Taped
5831 Inner Sheath :
Extruded / Taped
Armour :
Galvanised steel strip/wire 
3975 Armour :
Galvanised steel strip / wire 
Outer sheath :
PVC type ST1 or ST.2
5831 Outer Sheath :
PVC TYPE ST1 or ST.2
   
   CLASSIFICATION OF PVC COMPOUND
   
 
Type   A C ST 1 ST 2
Application  Insulation Insulation Sheath  Sheath
Max. Conductor Temp 700C 850C 700C 900C
   
   CORE   IDENTIFICATION
   
 

For power cables and control cables up to 4 cores, the cores are identification by  different colours as per IS Specifications          

Single core  :  Red, Black, Yellow or Blue
2 core        :  Red and Black
3 core        :  Red, Yellow and Blue
3 ˝           :  Red, Yellow, Blue & reduced neutral core in Black  

Where the number of cores exceeds5, core shall be identified by numbers. On specific request we can also provide core, two adjacent cores are Blue for reference and Yellow for direction in each layer. The remaining cores in each layer are grey.

   
   PRODUCT CODES
   
  As per IS : 1554 (Part-1) & 7098 (Part-1), the product is coded by alphabets
 
Aluminum                      A   PVC insulation                    Y
XLPE Insulation           2x   Steel round wire armour       W
Steel strip armour       F   PVC outer sheath                    Y
 

 

Steel double round wire armour WW
Steel double strip armour FF
Non-magnetic round wire armour Wa
Non-magnetic flat strip armour Fa

 

  No abbreviation is used for copper, the product code is stenciled on the drum flange’ surface.
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