IEC TR 62874:2015

IEC TR 62874:2015 provides guidance on interpreting carbon dioxide and 2-furfuraldehyde as markers of paper thermal degradation in insulating mineral oil. For engineers, laboratories, and asset managers working with transformer insulation systems, it supports a more consistent technical review of dissolved-gas and aging indicators when evaluating paper condition. The document is relevant where diagnostic findings must be aligned with documented evaluation practices, risk management decisions, and maintenance planning based on evidence from oil analysis and insulation ageing trends.

Purpose of IEC TR 62874:2015

The purpose of IEC TR 62874:2015 is to help users interpret chemical markers associated with the thermal degradation of paper insulation immersed in mineral oil. In practice, it can support technical assessment of the condition of electrical equipment, especially where oil analysis is used to inform verification activities, condition monitoring, and conformity assessment preparation. By focusing on the meaning of carbon dioxide and 2-furfuraldehyde results, the document helps reduce uncertainty in engineering documentation and supports more disciplined review of aging-related evidence.

Compliance applications of IEC TR 62874:2015

IEC TR 62874:2015 is commonly relevant in transformer diagnostics, laboratory evaluation of insulating oil, and maintenance workflows for high-value electrical assets. It may be used when reviewing test reports, comparing results across monitoring campaigns, or documenting technical findings for internal compliance workflows. Procurement teams and asset owners can also use it as a reference when specifying analysis services or confirming that a laboratory’s interpretation methods align with expected technical practice for paper insulation degradation assessment.

Benefits of IEC TR 62874:2015

Using IEC TR 62874:2015 can improve consistency in technical validation and reduce the risk of misinterpreting degradation markers in insulating mineral oil. That supports safer operational decisions, more reliable maintenance prioritization, and stronger evidence for conformity assessment or regulatory preparation where condition data must be defensible. It also helps standardize testing workflows across teams, improving comparability of results and strengthening engineering review, quality assurance, and long-term asset management planning.

• Guidance for interpreting carbon dioxide and 2-furfuraldehyde as indicators of paper insulation ageing
• Useful for transformer condition assessment and oil analysis review
• Supports laboratory evaluation, engineering documentation, and maintenance decision-making
• Helps improve consistency in technical review and compliance workflows