T/CEEIA 339-2018 Technical requirements for organic thermal-sensitive thermal cut-off device

Scope

Scope: This standard specifies the classification, marking, mechanical requirements, electrical requirements, and temperature test technical requirements for organic temperature-sensitive thermal fuses (hereinafter referred to as "thermal fuses"). This standard applies to thermal fuses installed in general indoor environments and used in electrical and electronic equipment and similar components to prevent them from overheating in the event of a malfunction. Note 1: The equipment does not necessarily need to be designed to generate heat. Note 2: The effectiveness of preventing overheating depends on the installation location and method of the thermal fuse, as well as the current it carries. This standard applies to thermal fuses with a rated voltage not exceeding 690V AC/DC and a rated current not exceeding 63A. If the climate and other conditions of the environment where the thermal fuse is located are similar to those specified in this standard, this standard can also apply to thermal fuses used in non-indoor conditions. This standard defines a thermal fuse as a one-time-acting, non-resettable device. The purpose of this standard is to: Specify the requirements for thermal fuses; Define the test methods; Provide useful information for the application of thermal fuses in equipment. This standard does not apply to thermal fuses used in extreme conditions such as corrosive or explosive atmospheres. This standard does not apply to thermal fuses used in AC circuits with a frequency lower than 45Hz or higher than 62Hz. Main technical content: This standard specifies the classification, marking, mechanical requirements, electrical requirements, and temperature test technical requirements for organic temperature-sensitive thermal fuses (hereinafter referred to as "thermal fuses"). This standard applies to thermal fuses installed in general indoor environments and used in electrical and electronic equipment and similar components to prevent the

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