PART IX DE-ENERGIZATION AND LOCKOUT — Definitions

"energy isolating device" means a device that physically prevents the transmission or release of an energy source to machinery or equipment;

"control system isolating device" means a device that physically prevents activation of a system used for controlling the operation of machinery or equipment;

"energy source" means an electrical, mechanical, hydraulic, pneumatic, chemical, thermal or other source of energy of potential harm to workers;

"key securing system" means a system which physically prevents access to keys when locks or positive sealing devices are applied in a group lockout procedure;

"lockout" means the use of a lock to render machinery or equipment inoperable or to isolate an energy source in accordance with written procedure;

"maintenance" means work performed to keep machinery or equipment in a safe operating condition, including installation, repair, cleaning, lubrication and the clearing of obstructions;

"normal production" means work that is routine, repetitive, and integral to the normal use of machinery or equipment for production; and

"personal lock" means a lock provided by the employer for use by a worker to ensure personal lockout protection such that each lock, when applied, is operable only by a key in the worker’s possession, and by a key under the control of the supervisor or manager in charge.