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Technology behind heat resistant cables



The idea behind installing heat resistant cables is to ensure safety, which also happens to be the topmost priority while employing any system.

During the first stage of a fire, the basic idea is to stop the propagation of fire and extinguish the impact caused by the fire at the earliest to reduce any kind of ill effect to the device in use. At the same time, we need to ensure that people can be evacuated under safe conditions. LAPP India, one of the leading cable manufacturers India, is constantly working to build top class heat resistant cables for protection against any such instances, and these cables are available for purchase on the portal.

The situation gets critical when the fire is out of control. With the release of intense heat, opaque smoke and toxic substances, which drastically limits the possibility of escape.

Exit strategy:

  • Usually all the building should have special devices with the main feature to alert people to EXITs, and extract harmful substances, etc. As it has become one of the common phenomena that the standard smoke detectors are sometimes unreliable because people forget to test and change the batteries regularly.  All these safety elements must be connected to the proper power network.
  •  Heat resistant cables are often used as a connector between emergency equipment’s or to provide power.  In the following scenario, they function as active elements since they must maintain electrical continuity or transmit a signal for an adequate amount of time.
  • The details on the change in the design that the heat-resistant cables have gone through is mentioned below:

  1.  Initial designs included copper conductors wrapped with mica tape(s) and cross-linked polyolefin. Here the core technology is the mica, and the cable performance is related to its quality, nature, suppliers, and taping.
  2. The second generation which was based on silicone-rubber-insulated conductors. With the property of high electrical resistance, this material forms a ceramic shield when encountered with any fire accidents. It is the most common solution for building applications.
  3.  And the latest one is the mix of two generations of the conductors as listed above

Installation of safety circuit:


Safety installations can be considered in two ways.


  • The First one consists in placing heat resistant cables directly within cable management systems (trays, ladders, etc.), having at the least equal performance in terms of integrity. This is done easily by standard assemblers.
  • The Second solution is more sophisticated and complex. The cables are drawn inside protective systems that are either pre-manufactured or built onsite. The inside temperature is never higher than their failure point (>100°C). This special property can be reached, for example, using specific additives releasing water when exposed to high temperatures.
  • In the case of short circuit, the standard cables start to burn and the fire quickly progresses along a route throughout the building that is almost impossible to detect. Instead of providing protection, they become a threat. All things considered, it seems much more appropriate and far less expensive to install safety circuits using heat resistant cables only. With LAPP India, one of the leading cable manufacturers India, we can reduce the fire accidents and build safe working environment.



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