29 CFR 1910.147 Flashcards Preview

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Flashcards in 29 CFR 1910.147 Deck (10):

Hot tap operations involving transmission and distributing systems for substances such as gas, steam, water or petroleum products when they are performed on pressurized pipelines do not need to be locked out provided the employer demonstrates ___

Continuity of service is essential, shutdown of system is impractical, and documented procedures are followed, and special equipment is used which will provide proven effective protection for employees


29 CFR 1910.147 requires employers to ___

Establish a program and utilize procedures for affixing lockout devices and tagout devices to energy isolating devices, and to otherwise disable machines or equipment to prevent unexpected energization, start up, or release of stored energy to prevent injury


An employee whose job requires them to operate or use a machine or equipment on which servicing or maintenance is being performed under lockout or tagout

Affected employee


A person who locks out or tags out machines or equipment in order to perform servicing or maintenance on that machine or equipment

Authorized employee


An energy isolating device is capable of being locked out if it has a ___

Hasp or other means of attachment to a affix a lock to or has a locking mechanism built into it


Connected to an energy source or containing residual or stored energy



A mechanical device that physically prevents the transmission or release of energy

Energy isolating device


Any source of electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other energy

Energy source


A procedure used in the repair, maintenance and services activities which involves welding on a piece of equipment under pressure

Hot tap


Commonly used to replace or add sections of pipeline without the interruption of service for air, gas, water, steam,, and petrochemical distribution systems

Hot tap