Heavy Object : An item of such size and weight that it cannot be moved without the use of power tools (e. g. , hydraulic lifting devices) or complex mechanical advantage systems.
NFPA 1670 Standard on Operations and Training for Technical Search and Rescue Incidents, 2009 ed. https://www.nfpa.org/assets/files/AboutTheCodes/16 70/Errata1670-09-1.pdf, (Std: Opr and Trng for Tech Search and Rsq Incid - Amer) {408 NFC}