This Standard applies to single-phase or polyphase, air-cooled (natural or forced) portable inverters having a rated supply voltage not exceeding 60 V ripple-free d.c. and an alternating current (a.c.) output where:

- the rated output does not exceed 3 kVA;

- the rated output voltage is within the range 50 – 500 V a.c;

- the rated frequency of the output is within the range 40 – 100 Hz.

NOTE 1 Portable inverters may be provided with facilities for fixing to a surface.

This Standard is applicable to inverters of the following types :

isolated inverters

equipotentialy bonded inverters

RCD protected inverters

These inverters are for

household and similar use,

use on construction sites, or

providing an independent supply to electrical installations in buildings, vehicles, caravans, boats and the like.

They may be fitted with terminals for the connection of d.c. supply or a external flexible cord fitted with battery clips or an automobile cigarette lighter plug or other d.c. plug.

NOTE 2 Examples of these types of inverters are

- inverters powered by a battery or other d.c. supply;

- inverters powered by a battery in a vehicle where the body of the vehicle is connected to the battery;

- inverters powered by a battery, where other circuits connected to the battery are accessible.

NOTE 3 Examples of devices excluded are

- AC semiconductor motor controllers and starters (IEC 60947-4-2)

- inverters used in an UPS system (IEC 62040 series);

- grid connected inverters (AS 4777.2);

- inverters in emergency escape lighting and exit signs for buildings; (AS 2293)

- electronic equipment used in power installations (IEC 62103)

- inverter - chargers

NOTE 4 This Standard is concerned only with the safety of inverters. It does not cover matters relating to inverter performance, efficiency, the output wave shape or prevention of electrolysis on steel hull boats