UL 60730-2-3:2017 PDF Download

UL 60730-2-3:2017 is a standard that specifically focuses on the evaluation and testing of thermal protectors used in ballasts for tubular fluorescent lamps. This standard applies to thermal protectors using NTC or PTC thermistors, and additional requirements for these are provided in Annex J. It should be noted that the testing of the combination of ballast and thermal protector is outlined in IEC 61347-1.

The standard covers aspects related to the safety, operating values, operating times, and operating sequences associated with the equipment. It also applies to thermal protectors within the scope of IEC 61347-2-8, which includes protectors suitable for ballasts for other discharge lamps, such as those covered by IEC 61347-2-9.

The term "protector" in this standard refers specifically to "self-resetting thermal ballast protectors." It is important to mention that this standard does not apply to other means of protecting ballasts or to manual devices for opening circuits.

UL 60730-2-3 applies to protectors used with ballasts for a.c. supplies up to 690 V at 50 Hz or 60 Hz. However, it does not take into account the response value of an automatic action of the control if it depends on the method of mounting the control in the equipment. In cases where the response value has a significant purpose in user or surrounding protection, the value defined in the appropriate household equipment standard or determined by the manufacturer's specifications applies.

Normative references include IEC standards such as IEC 61347-1, which covers general and safety requirements for lamp controlgear, IEC 61347-2-8, which provides particular requirements for ballasts for fluorescent lamps, and IEC 61347-2-9, which outlines particular requirements for discharge lamps (excluding fluorescent lamps). The standard also includes a reference to UL 935, which pertains to fluorescent-lamp ballasts.