291Meaning of high risk construction work

291  Meaning of high risk construction work   In this Chapter, high risk construction work means construction work that:  (a) involves a risk of a person falling more than 2 metres; or  (b) is carried out on a telecommunication tower; or  (c) involves demolition of an element of a structure that is load‑bearing or otherwise related to the physical integrity of the structure; or  (d) involves, or is likely to involve, the disturbance of asbestos; or  (e) involves structural alterations or repairs that require temporary support to prevent collapse; or  (f) is carried out in or near a confined space; or  (g) is carried out in or near:  (i) a shaft or trench with an excavated depth greater than 1·5 metres; or  (ii) a tunnel; or  (h) involves the use of explosives; or  (i) is carried out on or near pressurised gas distribution mains or piping; or  (j) is carried out on or near chemical, fuel or refrigerant lines; or  (k) is carried out on or near energised electrical installations or services; or  (l) is carried out in an area that may have a contaminated or flammable atmosphere; or  (m) involves tilt‑up or precast concrete; or  (n) is carried out on, in or adjacent to a road, railway, shipping lane or other traffic corridor that is in use by traffic other than pedestrians; or  (o) is carried out in an area at a workplace in which there is any movement of powered mobile plant; or  (p) is carried out in an area in which there are artificial extremes of temperature; or  (q) is carried out in or near water or other liquid that involves a risk of drowning; or  (r) involves diving work.