IEEE 930-2004

IEEE 930-2004 is a replaced standard that addresses the statistical analysis of electrical insulation breakdown data, helping engineers interpret test results with greater consistency. In the context of power, energy, and industrial applications, it is useful for evaluating dielectric performance, comparing materials, and understanding breakdown behavior under controlled conditions. IEEE 930-2004 supports more reliable conclusions when insulation testing data are variable, sparse, or influenced by probability-based failure patterns.

Overview of IEEE 930-2004

This technical document focuses on statistical methods for analyzing breakdown data from electrical insulation and related dielectric materials. IEEE 930-2004 is intended for situations where a single test result is not enough to characterize performance, and where distribution, scatter, and confidence in results matter. It provides a structured basis for interpreting insulation strength, estimating breakdown characteristics, and comparing materials or test conditions in a repeatable way.

Typical use cases

IEEE 930-2004 is commonly used when testing solid, liquid, or composite insulating materials in laboratory or development settings. It may support dielectric research, qualification testing, and analysis of insulation systems used in electrical equipment for power and industrial applications. Engineers may rely on it when reviewing breakdown voltage data, assessing material consistency, or comparing candidate insulators under similar test procedures and stress conditions.

Why it matters

Statistical treatment of breakdown data helps reduce the risk of drawing conclusions from limited or highly variable results. IEEE 930-2004 is valuable for improving test interpretation, supporting design decisions, and strengthening procurement or qualification reviews involving insulating materials. By encouraging consistent analysis, it can help teams compare performance more fairly, identify trends in dielectric behavior, and improve confidence in safety- and reliability-related decisions. IEEE 930-2004 is especially relevant where breakdown variability affects engineering judgment.

• Statistical breakdown data analysis
• Electrical insulation and dielectric materials
• Comparative test interpretation
• Power and industrial engineering context
• Replaced, inactive standard