This Standard contains symbols for use in electrotechnical documentation and provides general information on the structure of the AS 1102 series of Standards, the terminology used, the numbering, presentation and use of the symbols ad gives guidance on the adaptation of the symbols to computer-aided drafting (CAD) systems. Also, a general index of all symbols contained in the series is given (see Section 2). No distinction is made between light and heavy current applications. Although many symbols relating to specific electrotechnical fields have been grouped in parts of this Standard, it should be noted that many of the symbols grouped and labelled for a specific field may have application elsewhere.