Flammability and toxicity testing of wire and cable

Numerous entities are developing and implementing new testing requirements to measure the flame propagation characteristics of tray cables and the toxic gases generated during combustion of wire and cable. The author provides an overview of the organizations developing the tests, a general description of the test protocols, their current status, and their potential impact on the petroleum and chemical industries. It is suggested that the establishment of new flame testing criteria for tray cables may eliminate some presently permitted cable constructions. Introduction of new materials that are either more flame retardant, produce less smoke, or generate less corrosive or toxic gases will provide opportunities for new constructions and products