Generally, all owners, contractors or subcontractors and other persons having charge of, or responsibility for, any work involving a risk or danger to the employees or the public shall use every device, care and precaution that is practicable to use for the protection and safety of life and limb, limited only by the necessity for preserving the efficiency of the structure, machine or other apparatus or device, and without regard to the additional cost of suitable material or safety appliance and devices. [Amended by 1997 c.249 § 199]