FOREWORD
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 General notes on tests
6 Ratings
7 Classification
8 Marking
9 Checking of dimensions
10 Protection against electric shock
11 Provision for earthing
12 Terminals
13 Constructional requirements
14 Resistance to ageing, protection provided by
enclosures of indicator units and resistance to
humidity
15 Insulation resistance and electric strength
16 Temperature rise
17 Mechanical strength
18 Resistance to heat
19 Screws, current-carrying parts and connection
20 Creepage distances, clearances and distances
through sealing compound
21 Resistance of insulating material to abnormal heat,
to fire and to tracking
22 Resistance to rusting
Bibliography