IEC 60999-1:1999 PDF (Not Available)

The standard IEC 60999-1:1999 specifies the safety requirements for both screw-type and screwless-type clamping units used in electrical copper conductors. These clamping units can be either separate entities or integral parts of equipment. The standard applies to conductors with a cross-sectional area ranging from 0.2 mm2 up to 35 mm2, including both rigid (solid or stranded) and flexible conductors.

The clamping units covered by this standard are used for connecting devices and should comply with IEC 60228, which specifies the general requirements for conductors. The rated voltage for these clamping units should not exceed 1,000 V AC, with a frequency up to and including 1,000 Hz. Additionally, these clamping units can be used for connections with a voltage of up to 1,500 V DC.

The purpose of this standard is to ensure the safety of the clamping units and their compatibility with electrical copper conductors within the specified range. Compliance with this standard helps to mitigate the risks associated with improper connections, such as electrical hazards and potential equipment damage.