NEN EN 41003 : 2008

Foreword
Introduction
1. Scope
2. Normative references
3. Definitions
4. Safety requirements and compliance criteria
4.1 Connection to other equipment
4.1.1 Types of interconnection circuits
4.1.2 Interconnection of ELV circuits
4.1.3 Safety statements
4.2 TNV circuit characteristics and requirements
4.2.1 Limits
4.2.2 Separation from other circuits and from
       accessible parts
4.2.3 Operating voltages generated externally
4.2.4 Separation from hazardous voltages
4.2.5 Connection of TNV circuits to other circuits
4.3 Protection against contact with TNV circuits
4.3.1 Accessibility
4.3.2 Battery compartments
4.4 Protection of telecommunication network service
       personnel and users of other equipment connected
       to the network, from hazards in the equipment
4.4.1 Protection from hazardous voltages
4.4.2 Use of protective earthing
4.4.3 Separation of the telecommunication network from
       earth
4.4.4 Leakage current to and from telecommunication
       networks
4.5 Protection of equipment users from overvoltages on
       telecommunication networks
4.5.1 Separation from circuitry to be connected to a
       telecommunication network
4.5.2 Impulse test
4.5.3 Electric strength test
Annex A (normative) Relevant safety standards for the
        application of this standard
Annex B (informative) Bibliography
Annex C (informative) Telecommunication network voltages
        and signals