This International Standard specifies the safety requirements for discharge lamps (excluding fluorescent lamps) for general lighting purposes. This International Standard is applicable to low-pressure sodium vapour lamps and to high-intensity discharge (HID) lamps, i.e. high-pressure mercury vapour lamps (including This standard only concerns safety criteria and does not take into account performance. The performance standards IEC60188 , IEC60192 , IEC60662 , IEC61167 and IEC61549 should be referred to for such characteristics. It may be expected that lamps which comply with this standard will operate safely at supply voltages between 90% and 110% of rated supply voltage and when operated with a ballast complying with IEC61347‑2‑9 and IEC60923 , with a starting device complying with IEC61347‑2‑1 and IEC60927 , and in a luminaire complying with IEC60598‑1 .