The final part of HSE’s height safety dictionary covers off the letters T, U V, W, X, Y and Z.
You can find the other parts of our dictionary in the links below:
- A, B, C
- D, E, F, G
- H, I, J, K, L
- M, N, O, P
- Q, R, S
T
Temporary anchor point – Removable anchor point designed for use in one-off access situations where a permanent system is not available or practical. For example, TV antenna repairs on a residential roof.
Total restraint – A type of fall prevention system that physically prevents an operator from accessing an area where a fall may occur.
Twin-tail lanyard – An adjustable or fixed length of webbing that contains a connector for the operator at one end and two separate connection points for the system at the other. Sometimes referred to as a
Type 1 device – A fall arrest device that allows free travel along a rope or rail line. When the device receives a load (from a fall) it locks to the line.
Typically, type 1 devices are found on adjustable rope lines and vertical ladder lines.
Type 2 device – A fall arrest device that pays out a spring-loaded, self-retracting line to which a worker connects. It allows free movement, but locks when load is applied to it and releases when the load is removed.
Type 2 devices are often also referred to as inertia reels or self-retracting lifelines.
Type 3 device – A fall arrest device that functions the same as a type 2 device but also incorporates a winch function that can be used to retrieve a connected operator.
Type 4 device – A fall arrest device that functions the same as a type 2 device but also incorporates and automated descent function. Following the arrest of a fall, the device will lower the operator at a steady and controlled rate.
U
Unprotected edge – An area where a fall from an upper to a lower level is possible due to the absence of a fall protection or fall prevention system.
V
Verification of competency – A short assessment process that allows an operator to demonstrate their ability to perform particular skill or meet a unit of competency.
W
Work positioning – Technique where an operator utilises a height safety or fall protection system to maintain their footing while completing work in a fall risk area.
Y
Y hang – Work positioning technique used in twin rope abseil work where an operator connects to two anchor points and operates below them along a vertical line at the mid point.
Y-lanyard – See twin-tail lanyard.
Z
Zoo – The office where the operators work when not out on site.
