Answer: For a pull box housing shielded conductors carrying over 1000V and used in an angled pull, the distance between a conductor entry and exit must be 36 times the outside diameter.
Explanation: To find the correct explanation to the question, we have to find more about the pull box housing shielded conductors.
What is pull box?
- Pull box is an underground electrical container, that made up of composite materials that used in traffic signal installation and also provide access to underground detectors as well as interconnected cables.
- These are used to simplify the wiring installation.
What are the types of pull boxes?
- There we have two types of pull boxes, such as, one is for straight pulls and the other is for angle or U pulls.
- For straight pulls the length of the box shall not be less than 48 times the outside diameter of the cable.
- Angled pulls can be again classified as, Distance to opposite wall, Distance between entry and exit and removable sides.
- The distance between a conductor entry and exit from the box shall not be less than 36 times the outside diameter of the conductor.
Thus, we can conclude that, for a pull box housing shielded conductors carrying over 1000V and used in an angled pull, the distance between a conductor entry and exit must be 36 times the outside diameter.
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