IEC TS 62993:2017

IEC TS 62993:2017 provides guidance for determining clearances, creepage distances, and solid insulation requirements for electrical equipment operating above 1 000 V AC and 1 500 V DC, up to 2 000 V AC and 3 000 V DC. For engineering teams, test laboratories, and compliance reviewers, it is a practical technical document for evaluating insulation design decisions and supporting documented assessment of high-voltage equipment. It helps align product evaluation, verification activities, and regulatory preparation with a consistent technical basis.

What is IEC TS 62993:2017?

IEC TS 62993:2017 is a technical specification that gives guidance for insulation coordination in equipment within a defined high-voltage range. Its focus is on clearances, creepage distances, and solid insulation, which are key factors in electrical safety and design validation. The document is especially relevant when comparing design options, reviewing insulation performance, or preparing conformity assessment evidence. As a guidance document, it supports technical judgment rather than serving as a prescriptive product specification.

Applications of IEC TS 62993:2017

This reference is useful in the design and review of electrical equipment intended for higher-voltage operation, where insulation design affects safety and reliability. It may be used in engineering documentation, laboratory evaluation, and procurement reviews for systems that require traceable insulation criteria. Typical workflows include product evaluation, technical assessment, and testing workflows for components or assemblies where clearances and creepage distances must be justified. IEC TS 62993:2017 can also support internal quality workflows and compliance checks during development or certification preparation.

Why is IEC TS 62993:2017 important?

IEC TS 62993:2017 matters because insulation design decisions can directly affect safety, performance consistency, and compliance outcomes. Using a common technical basis for clearances, creepage distances, and solid insulation helps reduce risk during engineering validation and improves confidence in documented evaluation. It can also make technical reviews more consistent across design, testing, and procurement functions. For organizations preparing conformity assessment evidence, the document offers a structured reference for assessing whether insulation arrangements are appropriate for the intended operating voltage range.

• Guidance for insulation coordination in equipment above 1 000 V AC and 1 500 V DC
• Technical reference for assessing clearances, creepage distances, and solid insulation
• Useful for design review, laboratory evaluation, and compliance workflows
• Supports documented evaluation and conformity assessment preparation
• Helps improve safety-related engineering validation and risk reduction