By U.L. Standard 153, portable light tracks must have a cord not less than 5 feet in length.

Relevant code point

  • A commonly cited explanation of UL 153 states that portable lighting tracks:
    • Shall not be longer than 8 ft (2.4 m).
    • Must have a cord not less than 5 ft (1.5 m) permanently attached to the track.

So the blank in:
“by u.l. standard 153, portable light tracks must have a cord not less than ___ feet in length.”
is 5.

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