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  • sb10067122as-001

    Advanced tunnel modeling module

    The advanced tunnel modeling module (CYMCAP/ATM) offers extended capabilities, allowing the calculation of the ampacity and temperature of multiple cables in tunnels.
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Perform critical analyses for an improved understanding of cables in tunnels

This module allows you to determine steady-state temperature and ampacity, cyclic loading, emergency rating and transient analysis for cables installed in unventilated tunnels, as well as steady-state temperature and ampacity analysis for cables installed in ventilated tunnels.

Unventilated tunnels highlighted features:

  • Modeling of a large variety of installation methods: laying on the floor; hanging from a wall; in ladder-type racks or in cable trays
  • Cables and groups of cables can be single-core or three-core; single-core cables can be arranged in flat formations (vertically or horizontally) or in trefoil
  • Cyclic loading using daily, weekly and yearly load factors and computation of emergency ratings in unventilated tunnel configurations

Ventilated tunnels highlighted features:

  • Model an unlimited number of non-identical (unequally loaded) unbalanced circuits for single-core cables in either flat (horizontal or vertical) and trefoil configurations
  • Consider the heat transfer produced by radiation and convection between the cables and the tunnel wall, as well as the conduction between the tunnel wall and soil
  • Graphically represent the temperature profiles for each cable, the air and the tunnel wall as a function of their positions along the ventilated tunnel
  • Consider the effects of the tunnel wall and wind velocity in calculations
  • Obtain a graphical representation of the heat removed by the tunnel
  • Circular and rectangular tunnel shapes

Ready to learn more about this module?

Download brochure
cables-in-tunnels.jpg Unventilated tunnel with circuits in trefoil
ventilated-tunnel-cymcap.jpg Multiple circuits in various configurations installed in a rectangular ventilated tunnel
ventilated-tunnel-cymcap-02.jpg Multiple circuits in various configurations in a circular ventilated tunnel

Related additional modules

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Do you have questions about this module?

We are committed to delivering best-in-class solutions and providing exceptionally focused customer service. Our dedicated experts work closely with engineers throughout the entire project to successful completion.

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