What is IEC 60384-4-18:2017?

IEC 60384-4-18:2017, also known as the International Electrotechnical Commission Standard 60384-4-18:2017, is a technical document that provides guidelines for the performance and safety of fixed capacitors for direct current (DC) applications. This standard helps ensure that fixed capacitors meet specific requirements, such as temperature stability, rated voltage, and capacitor lifespan.

The Scope of IEC 60384-4-18:2017

The scope of IEC 60384-4-18:2017 includes fixed capacitors of ceramic dielectric, low-acoustic-emission metallized film dielectric, and aluminum electrolytic capacitors with non-solid electrolyte. It specifies the preferred ratings and characteristics and prescribes inspection procedures and methods of test to be used for quality assurance purposes.

Requirements for Fixed Capacitors

IEC 60384-4-18:2017 establishes requirements for measuring the electrical and physical properties of fixed capacitors under different conditions, such as temperature, humidity, and frequency. These requirements include capacitance, dissipation factor or loss angle, polarization index, resistance, insulation resistance, and dielectric strength. Compliance with these requirements ensures that the capacitors are reliable and safe for use in electronic equipment.

Compliance, Marking, and Storage

IEC 60384-4-18:2017 also addresses compliance assessment procedures, marking requirements on the capacitors, and provides guidelines for the storage of capacitors prior to installation. Compliance is typically assessed through sample testing or by verifying the manufacturer's declaration of conformity. Proper marking ensures clear identification and traceability of capacitors. The standard also emphasizes the importance of correct storage conditions to maintain the reliability and performance of the capacitors.