Fail-to-Safe (Failsafe) : Design feature of equipment that ensures any failure or defect, or another factor such as loss of power, results in the equipment being left in a safe condition
Martin Ralph (Managing Director, IFAP), Industrial Foundation for Accident Prevention (IFAP): Safer Healthier Workplace, IFAP Glossary of Terms, 4th Ed. Willetton Western Australia 2010. http://www.ifap.asn.au/Documents/courseinfo/IFAP_G lossary_of_Terms.pdf, (IndS - Brit) {633}