Polycab – Instrumentation Cable
As a trusted stockist of Polycab Instrumentation Cables, Mehta Electric Corporation provides high-quality, multi-conductor cables designed for transmitting low-energy electrical signals. These cables play a crucial role in monitoring and controlling power systems and industrial processes, ensuring reliable performance and efficiency.
Instrumentation Cable Products Range
Electrical Properties at 20° C
Electrical Properties for Multicore / Single & Multi Pair
Conductor Resistance
Cabling Elements
Individual Shielding of Element:
In case where individual shielding is required, the above element are wrapped first with Plain polyester, then the drain wire is laid parallel, over it Aluminum- polyester tape is applied with Aluminum side touching the drain wire. Above this a plain polyester tape is applied for shield isolation from other shields.
Core and Pair Construction
There is a confusion in specifying the cable required. If you ask for 24 Core X 1.50 sq.mm cable, we take 2 cores and twist them in one direction, above that 8 cores are laid in opposite direction and above that 14 cores are laid and it looks as drawing (a).
If you specify 12 Pair cable, first we take 2 cores and twist them to form a pair, 3 such pairs are again laid up, above that 9 such pairs are laid up to form a 12 pair cable and it look as drawing (b).
The diameter of multi paired cable is always more than that of multicore core cable having the same number of insulated cores and hence multi pair construction is always costlier.
NOTE: One Pair and Two Core cables are generally the same.
Typical Cross Sectional Drawing of Instrumentation Cables
4 Pair Overall Shielded Unarmoured Overall Drain Wire Twisted Pair
4 Pair Overall Shielded round Armoured Cable
4 Pair Individual & Overall Shielded round Armoured Cable
6 Core Overall Shielded Unarmoured
6 Core Overall Shielded Armoured
12 Triad Overall Shielded Unarmoured Cable
12 Triad Overall Shielded Strip Armoured Cable
Weight & Dimension Data
Colour Codes for Thermocouple Extension and Compensating Cable
Fire Resistant / Fire Survival Instrumentation Cables
The cables which are used in the Power, Control or Signal Circuit of emergency equipment’s shall be Fire Resistant to ensure higher safety and performance in the event of fire.
This critical equipment’s such as Alarm, Lift Power Supply, Emergency Lights, Exit Lights, Water Spray system and other important functions are connected with these cables.
Advantages Of Polycab Fire Resistant (Fire Survival)-FSCABLE With LSZH Sheathing
Typical Construction – fire Resistant/Fire Survivalcables
Fire Resistant or Fire Survival Cables shall be with LSZH / LSOH / ZHFR sheathing for better performance under fire.
Performance Characteristic Of Different Types Of Cables Under Fire
Properties of Fire Performance in Cables
Flame Retardant – IEC 60332-1
Flame Retardant – IEC 60332-3
Low Emission of Dark Fumes – ASTM D-2843
Halogen Free – IEC 60754-1
Low Toxicity and Corrosivity of Emitted Gases – IEC 60754-2