USP:
Heavy duty performance.
Offers the best combination of safety, efficiency and economy
Typical Example of Design & Construction As per IS 1554
Power Cable & Control Cable : Steel round , wire or steel strip armoured.
Conductor |
IS Specification |
High conductivity |
8130 |
insulation:Grade Copper |
5831 |
Inner Sheath +: PVC type A or C |
5831 |
PVC type ST1 or ST2 Galvanized wire steel strip |
3975 |
Outer Sheath PVC type ST1 or St2 |
5831 |
Classification Of PVC Compoud:
For power cable and control cable upto 4 cores, the cores are identified by different colours as per IS 1554 :
Single Core : Red, Yellow, Blue, Black etc.
2 Core : Red and Black
3 Core : Red, Yellow and Blue
3½ Core : Red, Yellow, Blue and reduced neutral core in Black
4 Core : Red, Yellow, Blue and Black.
5 Core : Red, Yellow, Blue, Black and Grey.
When the number of core exceed 5, numbering is provided on Black core and 1 core Yellow / Green.
Type |
Application |
Max. Conductor Temp. |
Max. Conductor Temp. |
A |
Insulation |
70°C |
70°C |
C |
Insulation |
85°C & 105°C |
70°C |
St1 |
Sheath |
70°C |
70°C |
St2 |
Sheath |
90°C |
90°C |
Product Code As per IS 1554 / Part-I / 1998, the product is coded by alphabets :
Aluminium |
A |
(No abbreviations are used for copper.) |
PVC Insulation |
Y |
|
Steel Strip Wire Armour |
W |
|
Steel Strip Armour |
F |
|
Steel Double Armour |
WW |
|
Steel Double Strip Armour |
FF |
|
PVC Outer Sheath |
Y |
|
Current Rating: :
The current rating given in tables are based on normal conditions of installation described below:
Maximum Conductor 70℃ for PVC Insulation & Temperature 850 for HRPVC Insulation
Thermal Resistivity of soil 150℃ cm/w
Thermal Resistivity of PVC 650°C cm/w
Ground temperature 40℃
Depth of laying 75 cms (to the highest point of cable laid direct in the ground)