Temperature around the cable tray
Polyester and Vinyl Ester cable trays are non-metallic, or in a very simple sense, plastic. Many modern buildings rely on cable trays to carry a lot of power and data lines. This white paper describes the use of sensor cable systems from LISTEC GmbH for the early detection of temperature-related hazards in cable trays and supply ducts. It explains typical causes of fire, outlines technical and organisational solutions, and provides recommendations for installation. 1993 NEC Section 300-7 (b) states that "Raceways shall be provided with expansion joints where necessary to compensate for the thermal expansion or contraction.
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