TEXPO

Low Voltage Derivatives Testing (LVD)

Low voltage is an electrical engineering term that broadly identifies safety considerations of an electricity supply system based on the voltage used. While different definitions exist for the exact voltage range covered by "low voltage", the most commonly used ones include "mains voltage". "Low voltage" is characterized by carrying a substantial risk of electric shock, but only a minor risk of electric arcs through air. "Low voltage" is distinguished from:

• Extra low voltage – which carries a much reduced risk of electric shock
• High voltage – where electrical arcing is a substantial additional risk.
• British Standard BS 7671:2008 defines low voltage as
  • 50–1000 V AC or 120–1500 V ripple-free DC between conductors
  • 50–600 V AC or 120–900 V ripple-free DC between conductors and Earth

At TEXPO we have an immense hands-on experience and proven track records of conducting these LVD testing. The combinations of tests are to satisfy the requirements of BSEN 60950 and under which the tests of the following are to test the;

• Resistance of Earth Conductors
• Electrical Strength
• Touch Current and Protective Conductor Current
• Temperature Measurements