 |
 |
| Manufacturer & Exporter of Cables, Wires & PVC
Conduct Pipes. |
LT
- XLPE / PVC Cables
KALINGA- (SLS GOLD) 1.1 KV HEAVY DUTY PVC/XLPE
INSULATED, PVC SHEATHED ARMOURED AND UNARMOURED CONTROL CABLES POWER
CONFORMING TO IS: 1554 (PART-1) 1988 / IS - 7098 (PART-1) 1988.
Construction
| Conductor |
Aluminium: EC Grade Aluminium
Conductor as per IS: 8130-1984 Flexibility Class 1 and 2.
Copper: Electrolyic Grade Copper Conductor as per IS: 8130 -1984
Flexibility Class 1 and 2. |
| Insulation |
PVC Type A of IS: 5831-1984 for
maximum conductor temperature 700C
PVC Type C of IS: 5831-1984 for maximum conductor temperature 850C
XLPE - (Cross linked polyethylene) compound of IS-7098-1988 for Maximum
conductor Temperature 900C |
Curing
In Case
of XLPE |
The insulated cores are cured in
hot water chamber maintained at 900C For 4 to 6 hrs
depending upon the thickness of insulation. |
Tolerance
on Thickness of Insulation
The smallest of the measured values of thickness of insulation shall not
fall below the nominal valued specified in the relevant tables by more than
(0.1 mm + 0.1 t
1).
Where t
1 = Nominal Thickness of Insulation in mm.
Colour
of Insulation
| 1. Core Cable
|
Red, Yellow, Blue,
Black, Grey, Green, White or any colour as per customer Requirement.
|
| 2. Cable |
Red & Black |
| 3. Core Cable |
Red, Yellow & Blue |
| 4. Core Cable |
Red, Yellow, Blue & Black |
| 5. Core Cable |
Red, Yellow, Blue, Black &
Grey |
| 6. Core & Above |
Two adjacent cores (counting &
direction core) in each layer Blue and Yellow, remaining cores Grey (or)
The same sequence as above alongwith indelible printing of core number
or All cores same coloured with number printing on the cores at regular
interval. |
| Laying -up |
The cores are laid up with a
suitable right hand lay. |
| Inner Sheath |
PVC Type ST-1 of IS: 5831-1984 for
maximum conductor temperature 700C.
PVC Type ST-2 of IS: 5831-1984 for maximum conductor temperature 850C.
(For XLPE Cables ST-2 Only) |
| Application |
The laid up cores shall be
provided with inner sheath applied either by Extrusion or by tape
wrapping, as per specification requirement. |
For Unarmoured single core cables no inner sheath be provided.
For Unarmoured multicore cables the inner sheath may be provided in single
extrusion alongwith the outer sheath. However the minimum thickness of inner
sheath shall be added to the thickness of outer sheath.
| Armouring |
Galvanized Steel Wire
armouring shall be provided with a suitable left Hand lay up to
calculated fictitious dia of cable = 13 mm.
Galvanized Steel strip armouring shall be provided with suitable left
lay : for calculated fictitious diameter of cable above 13mm. |
| Outer Sheath |
PVC Type ST-1 of IS: 5831-1984 for
maximum conductor temperature 700C.
PVC Type ST-2 of IS: 5831-1984 for maximum conductor temperature 850C.
(For XLPE cables ST-2 only.) |
Thickness
of Outer Sheath
| Unarmoured Cables |
The average thickness of outer
sheath of Unarmoured cables shall not be less than the nominal value
specified. The smallest of the measured values shall not be less than
0.2mm + 0.2 ts. |
| Armoured Cables |
The minimum thickness of PVC outer
sheath of armoured cables shall Not fall below the nominal value (ts)
specified more than 0.2 mm+0.2ts. |
| Colour of Outer Sheath
|
Colour of outer sheath shall be
black or any other colour as agreed to between the purchase and the
supplier. |
Advantages
of XLPE Insulation
 |
Easy Installation, as the XLPE
insulated cables are lesser in weight as compared to PVC Insulated
cables of same size. |
|
Higher operating temperature, current
rating and overload rating makes XLPE cables more economical to Use. |
|
Higher life span and flexibility as
compared to PVC cables. |
|
XLPE Insulated cables have a very high
degree of resistance towards Moisture, Oil, Solvent, Acid and Alkalies
compared to PVC cables which are moderately resistance to the above
conditions. |
|
XLPE Insulated cables have higher short
circuit temperature that is 2500C. as compared to PVC
Insulated Cables which have short circuit temperature of only 1600C.
|
|
XLPE Insulated cables no side effect on
health in case of a fire, however PVC cables are Carcinogenic in nature.
|
Specification
Click
Here to view Specification for LT - XLPE Cables
Click
Here to view Specification for LT - PVC Cables
Rating
Factors
Click
Here for Rating Factors For Variation In Thermal Resistivity
of Soil.
Click
Here for Multi Core Cables Laid on Racks in Air.
Click
Here for Wire Armoured Cables in Multi Way.
Click
Here for Circuits of Two / Three Single-Core Cables.
Click
Here for Twin & Multi Core Cables.
Click
Here for Single Core Cables in Trefoil Stoneware Ducts in
Tier Formation.
Click
Here for Multi way Ducts
Current
Rating Factors
Click
Here for Basic Assumptions For Current Rating For Pvc &
Xlpe Cables.
Other
Technical Specification
