What is the listed spacing for the Fiber Optic Linear Heat Detection Cable? The UL-listed spacing for the Fiber Optic Linear Heat Detector is 50 feet on center. By Lexi|2024-01-03T10:50:28-05:00June 19, 2018|Fiber Optic|Comments Off on What is the listed spacing for the Fiber Optic Linear Heat Detection Cable? Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: Lexi