Is the standby employee or other employees prohibited from entering the confined space without lifelines and respiratory equipment if there is any question as to the cause of an emergency?
Is approved respiratory equipment required if the atmosphere inside the confined space cannot be made acceptable Is all portable electrical equipment used inside confined spaces either grounded and insulated, or equipped with ground fault protection?
Before gas welding or burning is started in a confined space, are hoses checked for leaks, compressed gas bottles forbidden inside of the confined space, torches lighted only outside of the confined area and the confined area tested for an explosive atmosphere each time before a lighted torch is to be taken into the confined space?