For 3 nos. of trefoil group of 11 kV cables laid direct in the ground in horizontal formation, if the spacing between trefoils is increased, what will happen to the current carryin... For 3 nos. of trefoil group of 11 kV cables laid direct in the ground in horizontal formation, if the spacing between trefoils is increased, what will happen to the current carrying capacity of the group?
Understand the Problem
The question is asking about the effect on the current carrying capacity of a group of 11 kV cables when the spacing between them is increased. It seeks to understand whether the current carrying capacity will increase, decrease, remain the same, or if there is insufficient data to determine this.
Answer
Increase
The current carrying capacity of the group will increase.
Answer for screen readers
The current carrying capacity of the group will increase.
More Information
When the spacing between trefoil groups is increased, heat dissipation improves, allowing higher current flow without overheating.
Tips
A common mistake is assuming the current capacity remains unchanged regardless of spacing. Consider heat dissipation effects.
Sources
- DE-RATING FACTORS - KEI Industries - kei-ind.com
- Single-Core Cables Laid in Trefoil or Flat Formations - etscablecomponents.com
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