|
|
|
|
|
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. |
|
TOP |
|
|
|
|