Many crane festoon cables, especially Charging crane festoon cables, operate in an area where risks such as high radiant heat released during scrap melting, molten metal splashes, high-speed small particles, and exposure to intense flame are very intense.
These risks result in deformation of the festoon cables over time and cause downtimes that may create very high costs for the factory.
The festoon cable protection method that is frequently used today is to wrap glass fiber tapes of 50mm or 100mm width around the cable bends in the form of a helix.
We can summarize the disadvantages of this traditional method as follows:
E-glass glass fiber, which starts to melt at temperatures above 550°C, passes into the glassy phase and becomes brittle due to exposure to intense flame within a certain period of use. During the back and forth movements of the Feston cable group, the glass fiber tapes become brittle and begin to fall off.
The thermal insulation capacity of woven Glass Fiber tapes used in 2 or 3 mm thickness is very low. Additionally, when we consider that the purulent dust cloud with high heat conduction that occurs during charging condenses on the Glass Fiber Tape, it will not be able to keep the high radiant heat and flame heat that occurs during charging away from the cables. This will cause the cables to become scorched and lose their conductivity over time.
The winding process of spiral Glass Fiber Tape on Feston cables creates unprecedented labor costs for businesses. For the spiral winding of a 20 meter long 10 cable group, an average of 1000 meters of Glass Fiber Tape must be spirally wound. This process requires an average of 4 working hours.
When there is a stoppage due to a fault originating from the cable, it will not be possible to determine which part of the cable the fault is in, since the cables are wrapped in a helical manner with Glass Fiber Tape. For this, the windings will have to be completely disassembled, which will again create invisible additional labor and downtime costs. .
In cases where crane festoon cables need to be renewed in a planned manner, a new material purchase must be made as the removed Glass Fiber Tapes are unusable due to deformation.
It is very easy to eliminate all the problems mentioned above with the Fesjacket© insulation jacket.
The advantages of Fesjacket© insulation jackets are as follows:
Special Silica fiber fabrics with 1,000°C continuous and 1,200°C short-term heat resistance do not deform during exposure to intense flame and never lose their first-day flexibility.
The thick (10-15-20mm) structure of the needled silica fiber mat inside completely protects the cable group from heat and flame thanks to its low heat conduction coefficient. It ensures safe operation of the cable.Installation of
Fesjacket© insulation jackets can be completed in a very short time thanks to the arched connection structure. Wrapping a 20-meter long 10-wire group with a Fesjacket© insulation jacket can be completed in less than 1 working day on average.
Fesjacket© insulation jackets minimize downtime costs due to ease of disassembly in case of cable-related faults.
Thanks to its durable structure, Fesjacket© insulation jackets, which are removed during planned maintenance, can be put back on without any problems and continue to be used.
