scope:

Deals with power operational temporarily installed builders hoists intended for use by persons who are permitted to enter sites of engineering and construction, serving defined landing levels, having a platform; - designed for the transportation of goods only - which permits the access of persons during loading and unloading - which permits the access and travel by authorised persons during erection, dismantling and maintenance - travelling vertically or along a path within 15 degress max. of the vertical - supported or sustained by: wire rope, chain, screwed spindle and nut, rack and pinion, hydraulic jack (direct of indirect), or an expanding linkage mechanism - where masts may of may not require support from separate structures.