Elimination
Complete work from outside space
A confined space is an enclosed or partially enclosed area that is big enough for a worker to enter. The space may be enclosed on all sides (for example, a bin or tank), or as few as two sides (for example, an enclosed conveyor). Confined spaces are not designed for someone to work in regularly. They are places where entry may be needed from time to time for inspection, cleaning, maintenance, or repair.
Complete work from outside space
Forced air ventilation, intrinsically safe equipment
Identification and assessment of all hazards in a confined space, warning signs posted, gas monitoring, safety watchers
Intrinsically safe PPE; non-entry tripods and self retracting lifelines