SN EN 1987-3 : 1999

Foreword
1 Scope
2 Normative references
3 Definitions
    3.1 conductive part
    3.2 live part
    3.3 exposed conductive part
    3.4 electrical circuit
    3.5 nominal voltage of an electrical system
    3.6 working voltage of an electrical circuit
    3.7 auxiliary function
    3.8 auxiliary electrical circuit
    3.9 power circuit
    3.10 electrical chassis
    3.11 direct contact
    3.12 indirect contact
    3.13 basic insulation
    3.14 supplementary insulation
    3.15 double insulation
    3.16 reinforced insulation
    3.17 protection degree
    3.18 class I equipment
    3.19 class II equipment
    3.20 opening parts
    3.21 temperature rise
    3.22 ground clearance between the axles
4 Voltage classes of an electrical circuit
5 Protection against direct contact
    5.1 Class A
    5.2 Class B
6 Protection against indirect contact
    6.1 Class A
    6.2 Class B
    6.3 Test procedure
7 Protection against temperature rise
    7.1 Requirements towards temperature rise
    7.2 Requirements towards temperature rise by overcurrent
8 Protection against water effects
    8.1 Test procedure
    8.2 Requirements
Annex A (normative) Hose nozzle for IPX5 test
Annex B (normative) Spray nozzle (brass) for IPX3 test
Annex C (informative) Bibliography

Defines requirements for electrically propelled road vehicles regarding electrical safety, where the vehicle is not connected to the external power supply. Applies to electric vehicles where the maximum working voltage of any electrical circuit is 750 V d.c. or 500 V a.c.