EN 1987-3:1998

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 1 equipment
  3.19 class 2 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 contacts
  5.1 Class A
  5.2 Class B
6 Protection against indirect contacts
  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

This standard specifies the requirements for electrically propelled road vehicles in terms of electrical safety, when the electrical vehicle is not connected to the external power supply. This is applicable to electric vehicles for which the maximum working voltage of any electrical circuit is 750 V dc or 500 V ac.