AS NZS 1802:2018 pdf free
AS NZS 1802:2018 pdf free.Electric cables – Reeling and trailing – For underground coal mining
Due to common usage in the mining industry, cables in this Standard have voltages designated using phase voltage’/* phase voltage’. However, although the cables specified for use with a.c. in this Standard are suitable in non-effectively earthed systems they are not intended for continuous operation with one phase earthed.
The voltage designation takes into consideration the fact that the system voltage may vary up to 9.1 percent from the designated voltage.
Cables are designated by means of a type number. The type number incorporates reference to the voltage, e.g. Type 209.3 identifies Type 209 rated at 3.3/3.3 kV.
Types of cables and their applications are listed in Table 1.
NOTE: For the cables specified in this Standard for use in underground coal mines, the first digit of the type number is 2. For those specified in AS/NZS 2802, for use in other than underground mining, the first digit of the type number is 4. These initial numerals have been chosen so that,for cables of like construction (e.g. as in the case of Types 209 and 409),the possibility of mistaken identity is reduced even after the cable has been worn or damaged.
Power, cearth and pilot conductors shall consist of tinned annealed copper wires complying with the appropriate requirements of AS/NZS 1125, except that the wires taken from the completed cable need not comply with the continuity test for tin plating specified in AS/NZS 1660.1. Conductor sizes from 1.5 mm2 up to and including 4 mm2 shall be Class 5 flexible conductors and conductor sizes greater than 4 mm2 and up to 400 mm- shall be multiple-stranded circular flexible conductors (rope lay).Tables 11 to 16 specify the standard interstitial conductors appropriate for a given cable.
Power, earth and pilot conductors may consist of a larger number of smaller diameter wires provided that the individual wires are not less than 0.19 mm or 50 percent of the nominal diameter rounded to one decimal place for a given conductor size, whichever is the greater,and provided that the conductor is of at least equal cross-sectional area to the standard conductor.AS NZS 1802 pdf download.
