Question: What are TE's Cable Cleats made from?
Answer: Each cleat body of our cable cleats is made from impact resistant, halogen-free, UV-stabilized, V0 flame-retardant polymeric material. The hardware components are made up of stainless-steel grade SS304 to perform under harsh environmental conditions (other grades available upon request). Rubber inserts are also manufactured using high performance UV-stabilized, halogen-free elastomeric compound.
Question: What is their impact resistance classification?
Answer: Our Cable Cleats are classified as “Very Heavy” according to their resistance to impact, which is the highest level as per IEC 61914:2021.
Question: What is the application temperature range of TE’s Cable Cleats?
Answer: Our Cable Cleats comply with the mechanical testing requirements of IEC 61914:2021 for applications at minimum temperatures of -40°C (-40°F) and maximum temperatures of 120°C (+248°F).
Question: How do I calculate the spacing between the Cable Cleats?
Answer: The formula given in the international standard IEC 61914:2021 can be used as a reference to calculate the electromagnetic forces between conductors. This formula gives a simplified approximation of the forces between conductors involved during a short circuit assuming that the cables are rigid and static, and it is based on symmetrical fault current waves with no DC components.
Ft = 0.17 x ip2 / S
Where:
Ft = maximum force on the conductor (N/m)
ip = peak short-circuit current (kA)
S = center to center distance between conductors (m)
Calculated Ft can then be compared to the mechanical strength of the cleats and the spacing can be determined.