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This Standard sets out the procedures to be followed for the selection of cables to satisfy typical Australian installation conditions where the ambient air temperature is 40 degrees C and ambient soil temperature is 25 degrees C. This Standard provides sustained current-carrying capacities and voltage drop values for those types of electrical cable and installation practices in common use in Australia.
A significant amount of explanatory material is also provided on the application of rating factors that arise from the particular installation conditions of a single circuit or groups of circuits. Also, provided in Section 5 is information on cable selection based on short-circuit temperature limits.
Print Save Email. Resource detail. Cited By This resource is cited by 2 documents show Citations. Description This Standard sets out the procedures to be followed for the selection of cables to satisfy typical Australian installation conditions where the ambient air temperature is 40 degrees C and ambient soil temperature is 25 degrees C. Three criteria are given for cable selection, as follows: Current-carrying capacity; Voltage drop; Short-circuit temperature rise.
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The following three main factors influence the selection of a particular cable to satisfy the circuit requirements:. The minimum cable size will be the smallest cable that satisfies the three requirements. However, with experience it will become apparent that the different nature of installations will determine which of the requirements predominate. In general, the current-carrying capacity requirement will be the most demanding in the relatively shorter route lengths of domestic premises and the like where factors such as semi- enclosed re-wirer able fuse protection, cable grouping, and thermal insulation occur. On the other hand the voltage drop limitation is usually the deciding factor for longer route lengths which are not subject to the factors mentioned above. To satisfy the current-carrying capacity requirements of a circuit it is necessary to take into account a number of factors, as follows:.
Section 1 Scope And Application
This Standard was published on 26 October To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options.
Cable sizing calculator AS/NZS3008
You will need to comply with this standard if you intend to carry out electrical work in Western Australia. You must comply with this standard when selecting cables for electrical installations. This standard sets out a method for correct cable selection for those types of electrical cables and methods of installation that are in common use at working voltages up to and including 0. This standard provides sustained current-carrying capacities and voltage drop values for those types of electrical cable and installation practices in common use in Australia. Please consult the Contact Officer for more information and to ascertain the level of compliance that may be required. A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.
As Nzs 3008 1,1 Cable Selection