- ARMOURED CABLES
- 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: Grade Copper 8130
- Insulation: PVC type A or C 5831
- Inner Sheath: PVC type ST1/ ST2 Galvanized wire steel strip 5831
- Armour: PVC type ST1 or St2 3975
- Outer Sheath: 5831
- Core Identification
- 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.
5Core Red, Yellow, Blue, Black and Grey.
When the number of core exceed 5, numbering is provided on Black core and 1 core Yellow / Green.
- Classification of PVC Compound
- Type Application Max. Conductor Temp.
A Insulation 700C
C Insulation 850C & 1050C
ST1 Sheath 700C
ST2 Sheath 900C
- Product Code
- As per IS 1554 / Part-I / 1998, the product is coded by alphabets:
Aluminum A
(No abbreviations are used for copper.)
PVC insulation Y
steel round wire armour W
Steel strip armour F
Steel double round wire armour WW
Steel double strip armour FF
PVC outer sheath Y
- Current Ratings
- The current rating given in tables are based on normal conditions of installation described below:
1. Maximum Conductor 700C for PVC Insulation &Temperature 850C for HRPVC Insulation
2. Thermal Resistivity of soil 1500C cm/w
3. Thermal Resistivity of PVC 6500C cm/w
4. Ground temperature 400C
5. Depth of laying 75 cms (to the highest point of cable laid direct in the ground)
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