This pa rt of ISO 8528 specifies test methods for the characteristics of an entire generating set. Existing test methods for the engine (ISO 3046-2 and ISO 3046-3) and generator (IEC 34-2) should be used for those components. The generating set manufac- turer is responsible for specifying these character- istics and the tests to be performed. It applies to alternating current (a.c.) generating sets driven by reciprocating intemal combustion (RIC) engines for lahd and marine use, excluding gener- ating sets used on aircraft or to propel land vehicles and locomotives. For some specific applications {for example, essen- tial hospital supplies, high-rise buildings, etc.) sup- plementary requirements may be necessary. The provisions of this part of ISO 8528 should be re- garded as a basis. For a.c. generating sets driven by other reciprocat- ing type prime movers (e.g. sewage gas engines, steam engines) this part of ISO 8528 should be used as a basis.