Trench Rescue: Operations/Technical Level
At this level, personnel shall identify and understand the need for protective systems to do a safe rescue, as well as learn procedures for monitoring the atmosphere in all parts of the trench. Topics include the limitations of supplemental sheeting and shoring systems; procedures for adjustment of protective systems based on environmental conditions; and de-watering, and rigging. This level of training is outlined in the NFPA 1670 and 1006 standards. Working in straight wall trenches, single or double wall collapse, intersecting trench, and L-shaped trench environments will be discussed, and students will learn how to perform procedures and use different types of equipment to make the rescue area safe, including approved engineering practices and knowledge of soil types, ventilation and other hazards. Rescue procedures discussed include assessing mechanisms of entrapment and methods of victim removal. All sections of the Ontario Health and Safety Act and the Construction Regulations will be discussed and utilized before entering a trench scenario for safety of the rescuer.