Acronyms And Definition Of Terms - ETC Vortek NXT Installation And Operation Manual

Acronyms and Definition of Terms

The following are acronyms and definition of terms used throughout this manual.
• Acme Screw - A leadscrew that translates the hoist drum, motor, and gearbox.
• Competent Person - Person who has such practical and theoretical knowledge and such
experience as is necessary to carry out the work and is aware of the limits of his/her own
competence, expertise and knowledge.
• Control System - ETC control equipment associated with the operation of the hoist or hoist
system.
• Hazard - Potential source of harm.
• Hoist Capacity - Maximum load capacity applied to a hoist or hoist system. This includes all
attached components and accessories in the load path.
• Line Set - The combination of a hoist, load-bearing equipment and load-carrying device.
• Machinery Installation - The integration of load-bearing equipment, drive system, loadcarrying
devices and scenic elements.
• Point Load - A load that is localized to a specific location.
• Qualified Person - Person who, by possession of a recognized degree or certificate of professional
standing, or who by extensive knowledge, training and experience, has demonstrated the ability
to solve problems relating to the subject matter and work.
• Risk - Combination of the probability of occurrence of harm and the severity of the harm.
• Risk Assessment - The systematic examination of the machinery or electrical installation in order
to identify relevant hazards, estimate and evaluate related risks and put in place protective
measures to reduce the risk to an acceptable level.
• 3 Phase - Refers to a system of power distribution of 3 electric power conductors carrying
alternating current voltages whose cycles are offset by 120° from each other.
• Trained/Authorized Person - A person trained or authorized by ETC to perform work on the
Vortek hoist.
• Uniform Distributed Load (UDL) - A load that is constant over a certain distance.
• Working Load Limit (WLL) - The maximum load (mass) that the user can hang on the loadcarrying
device (e.g., batten, truss), provided it is a uniform distributed load.
Note:
Acronyms and Definition of Terms
The Working Load Limit is equal to the Hoist Capacity minus the weight of the load
securing and carrying devices.
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