The Purpose of the LVD Safety Tests
What is LVD?
European Union’s (EU) “Directive on the harmonisation of laws in EU Member States related to electrical equipment designed for use within certain voltage limits” is called as “Low Voltage Directive “ and briefly is used as LVD (Low Voltage Directive). The final version of Directive has been released on 29 March 2014 as 2014/35/EU and LVD Directive have 2006/95/EC and 73/23/EEC versions.
2014/35/EU version is a directive that has been revised with 2006/95/EC and 73/23/EEC directives and their additions. 2014/35/EU directive will enter into force on 20 April 2016. Until this date, with the revocation of 73/23/EEC directive, the implementation of 2006/95/EC directive that was enter into force on 16 January 2007 will be mandatory.
The purpose of the directive is to be harmonised with the laws of EU member states related to electrical equipment designed for use within certain voltage. In other words, ensure that electrical equipments are produced safely as not to create hazard for users.
The essential requirements related safety for electrical equipment within the scope of the directive is given in Annex 2 under the following headings:
• General Conditions
• Protection against hazards arising from the electrical equipment,
• Protection against hazards which may be caused by external influences on the electrical equipment.
The Scope of the LVD
The directiveis applying all electrical equipment that is designed for use with, between 50VAC - 1000VAC operating voltages for alternative current and between 75VDC - 1500VDC operating voltages for direct current.This operating voltages corresponds to the input or output voltages electrically. The voltages that can occur within the equipment is not intended for.
Battery powered equipment except for this operating voltages are absolutely not included in the scope of the directive. However, the supplied battery charger with integrated power supply equipment within the voltage ranges of the directive, is included in the scope of the directive.
Products Outside the Scope of LVD Directive
The following equipment is not include in the scope of the directive LVD;
• Electrical equipment for use in an explosive atmosphere,
• Electrical equipment for radiology and medical purposes,
• Electrical parts for passenger lifts,
• Electricity meters,
• Plugs and sockets,
• Electric fence controllers,
• Radio-electrical interference,
• Electrical equipment for use on ships, aircraft or railways.
The harmonised “EN60950-1 information technology equipment - Safety Part 1: General Rules” standard is used for the safety tests that are applied to the electrically powered devices within the scope of the directive and the tests in this standard are called as LVD Safety Tests.
The Purpose of the LVD Safety Tests
REDUCING RISK OF INJURY AND DAMAGE for the safety of user, because of;
• Heat Related,
Hazards causing from electrical equipments during and after installation of the device.
The Scope of EN 60950-1 Safety Standard
This Standard applies to mains-powered or battery-powered information technology equipment that includes electrical commercialequipment and associated equipment, with a rated voltage not exceeding 600 V. This standard covers safety requirements intended to reduce risks of fire, electric shock or injury for the operator and layman who may come into contact with the equipment and where specifically stated for a service staff. The tests performed in the scope of this standard are absolutely performed to determine whether it is safe for the user.