Confined spaces Confined space entry procedures Confined space

Confined spaces Confined space entry procedures

Confined space entry procedures • Must include o Lockout and isolation o Air testing o Ventilation o Standby persons o Personal protective equipment (PPE) o Rescue o Entry permit • Must be created by a qualified person 2

Lockout and isolation • Lockout and isolation to protect workers from hazardous energy and harmful substances in the confined space • Attach locks or switches to lock out product sources, energy sources, and controls for all moving equipment, OR isolate by disconnecting or inserting a blank or blind • Written procedures for lockout and isolation • Isolation points checked visually 3

Lockout – valves 4

Lockout – electric switches 5

Isolation of “clean-in-place” systems 6

Isolation of piping – blank 7

Air testing • Test air for toxic gases and oxygendeficient or explosive atmosphere • Test at least 20 minutes before a worker enters a confined space • Record and post results 8

Air testing • Ventilate confined spaces before and during work in the space 9

Standby persons • Standby person (or persons) must be stationed at or near the entrance to the space • Standby person maintains communication with the workers in the space 10

Rescue • Dedicated rescue team must be available and stationed at entrance to confined space • Written rescue procedures • Trained for confined space rescue • Rescue team must conduct annual drills 11

Entry permit Required if • A high-hazard atmosphere workers could be injured or killed if the ventilation system or respirator fails) • Lockout or isolation are required • A hazard of entrapment or engulfment Included on the permit • Type and nature of the confined space • Work activities that will take place • Names of workers in the space • Air testing results • Control measures and precautions required • Signature of supervisor 12

Qualified Person Confined space entry procedures must be prepared by a Qualified Person, which can include • Certified Industrial Hygienist (CIH) • Registered Occupational Hygienist (ROH) • Certified Safety Professional (CSP) • Canadian Registered Safety Professional (CRSP) • Professional Engineer (P. Eng. ) • Others who have experience working with confined spaces and have a combination of education and training acceptable to Work. Safe. BC 13