I.S. EN 60999-1:2003

Foreword
1 Scope
2 Normative references
3 Definitions
4 General
5 General notes on tests
6 Main characteristics
7 Connection of conductors
8 Constructional requirements
9 Tests
Annex A (informative) Approximate relationship between mm2
        and AWG sizes
Annex B (normative) Rated connecting capacity and
        corresponding gauges
Annex C (normative) Construction of stranded conductors
Bibliography
Figure 1 - Test apparatus according to 9.4
Figure 2 - Examples of pillar clamping units
Figure 3 - Examples of screw and stud clamping units
Figure 4 - Examples of saddle clamping units
Figure 5 - Examples of mantle clamping units
Figure 6 - Examples of screwless-type clamping units
Table 1 - Relationship between rated connecting capacity and
          diameter of conductors
Table 2 - Relationship between mass and cross-sectional area
          during testing
Table 3 - Relationship between pull force and cross-sectional
          area
Table 4 - Relationship between torque and nominal diameter of
          thread

Deals with screw-type and screwless type clamping units for connecting devices, as either essential parts of equipment or as separate entities, for connecting of electrical copper conductors (which comply with IEC 60228), rigid (stranded or solid) and flexible, with cross-sectional area of 0,2 mm[2] to 35 mm[2] and equivalent AWG sizes having rated voltages up to 1 000 V a.c. and frequencies not exceeding 1 000 Hz, and 1 500 V d.c.