This British Standardgivesamethodforassessmentofthefireintegrityofcast resinbusbartrunkingsystemsforthesafetycriticalpowerdistributiontolife safetyandfirefightingsystems,intendedtomaintaincircuitintegritywhen exposedtofire.Itisapplicabletocastresinbusbartrunkingsofratedvoltage notexceeding1000Va.c.
NOTE Busbar trunking systems are specified in BS EN 61439-6:2012.