Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 General requirements
6 Type testing
7 Rating
8 Marking
9 Dimensions
10 Clearances, creepage distances and solid
insulation
11 Accessibility of live parts
12 Provision for earthing
13 Construction
14 Terminals and terminations
15 Screws, current-carrying parts and connections
16 Provisions for cables and cords
17 Resistance to ageing
18 Resistance to harmful ingress of water and
resistance to humidity
19 Insulation resistance and electric strength
20 Temperature rise
21 Mechanical strength
22 Resistance to heat
23 Resistance of insulating material to abnormal
heat, and to fire
24 Resistance to tracking
25 Resistance to excessive residual stresses and
to rusting
Annexes
Annex A (informative) - Summary of tests on
insulating parts of
accessories
Annex B (normative) - Measurement of clearances
and creepage distances
Annex C (normative) - Determination of the
comparative tracking index
(CTI) and proof tracking
index (PTI)
Annex D (normative) - Relation between rated impulse
withstand voltage, rated voltage
and overvoltage category
Annex E (normative) - Pollution degree
Annex F (normative) - Impulse withstand voltage test
Bibliography