Before any person enters a confined space, you must isolate any potentially hazardous services. Today we take a look at the two main methods of isolation.
The first question you might ask is why ventilate? There are many good reasons to ventilate, but environmental stability tops the list. David Angelico, president of Air Systems, has this to say: ‘Ventilation of a confined space should be done to stabilise the environment. This provides us a reference point for the most important piece of confined space equipment – the atmospheric monitor. This “stabilisation” of the confined space atmosphere minimises the speed at which the atmosphere can or will change and maximises the reaction time by the worker to evaluate the change and decide if they need to exit the confined space.’
We’ve covered the definition of confined space, as well the basics for conducting a risk assessment in one. Today we look at the most common hazards you should keep an eye out for when working in a confined space.