Definition(s)
Device, High-Temperature
A device whose maximum operating temperature exceeds 80 % of the autoignition temperature in degrees Celsius (°C) of all the gas or vapor involved see 4.2.
Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards