Implementing Guidelines for the Mandatory Certification of Lamp Control Gear – Ballast for Tubular Fluorescent Lamps Covered by PNS IEC 61347-1:2002 “Lamp Control Gear-Part 1: General and safety requirements†and PNS IEC 61347-2-8:2002 “Lamp Control Gear-Part 2: Particular requirements for ballast for tubular fluorescent lampsâ€