Standards Development

Scope

This clause of Part 1 is replaced by the following:

This document applies to thermal protectors

 That are integrated or incorporated in ballasts for tubular fluorescent lamps;

 for use in ballasts of tubular fluorescent lamps used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications;

  that are AC or DC  controls with a rated voltage not exceeding 690 V AC or 600 V DC

 using NTC or PTC thermistors and to discrete thermistors, requirements for which are contained in Annex J

 that are electromechanical or electronic in design and responsive to or controlling such characteristics as temperature.”.

NOTE 1 Throughout this document, the word "equipment" means "ballasts for tubular fluorescent lamps" and “Controls” means “thermal protectors

NOTE 2  Requirements concerning the testing of the combination of ballasts and thermal protectors are given in IEC 61347-.

This document applies to

– the inherent safety of thermal protectors for ballasts for tubular fluorescent lamps, and

– functional safety of thermal protectors used to protect ballasts for tubular fluorescent lamps from overheating,

– controls where the performance (for example the effect of EMC phenomena) of the product can impair the overall safety and performance of the controlled system,

– the operating values, operating times, and operating sequences where such are associated with equipment safety.

– Thermal protectors for ballasts within the scope of IEC 61347-2-8– Thermal protectors that may be suitable for ballasts for other discharge lamps such as ballasts under the scope of IEC 61347-2-9

This document does not apply to

 A manual device for opening the circuit

 Other means used to protect ballasts