AS NZS 1802:2018 pdf free.Electric cables-Reeling and trailing- For underground coal mining.
3 DEFINITIONS
For the purpose of this Standard, the definitions given in the referenced Standards and those beclow apply.
3.1 Approximate value
A value which is neither guaranteed nor checked.
3.2 Bunch
A number of wires all of which are twisted together in the same direction and with the same length of lay throughout.
3.3 Composite sereen
A screen comprising stranded or bunched copper wires applied in one direction and interwoven in the opposite direction with polyethylene terephthalate yarn, or its equivalent.
3.4 Conductor screen
A layer of non-metallic semiconductive material applied directly over the power conductor for the purpose of equalising stress through the insulation layer.
3.5 Covering
Semiconductive elastomer extruded over the earth conductors.
3.6 Cradle separator
A shaped section of elastomer, designed to support the core assembly, fll the centre interstice and provide a specified separation between individual power cores.
3.7 Direction of lay
The slope direction of the conductor wire, bunch, core, screen or armour strands when the stranded conductor or cable is held vertically. It is right-hand when the slope is in the direction of the central part of the letter Z, and left-hand when the slope is in the direction of the central part of the letter S.
3.8 Earth conductor
A conductor laid up in the cable for the purpose of providing earth continuity.
3.9 Fictitious diameter
Diameter calculated according to a formula based only on the cross-sectional area of conductor, number of cores and specified component dimensions and which ignores conductor make-up and the possibility of components having dimensions other than as specified.
NOTE: The fictitious value is only used to determine the thickness of the mechanical protective layers of the cable, that is inner and outer sheath and pliable armour strand size.
3.10 Insulation earth screen
A layer applied directly over the power core insulation for the purpose of providing a fault current path to earth.
3.11 Insulation screen
An insulation stress relief screen and/or an insulation carth screen.
3.12 Insulation stress relief screen
A layer applied directly over the power core insulation for the purpose of providing electrical stress relief through the insulation.AS NZS 1802 pdf download.