TS 7207 EN 60371-1

TS 7207 EN 60371-1 is a terminology standard for mica-based insulating materials. It defines the terms used to identify built-up mica materials, products made from them, and mica paper, creating a common technical language for manufacturers, designers, and laboratories working with this material family.

Why the terminology matters

Mica is widely valued in electrical insulation because of its dielectric strength and thermal stability. In practice, however, there are important distinctions between mica paper, built-up mica materials, and composite products incorporating mica. The main purpose of this standard is to separate those closely related concepts so that specifications, procurement documents, and technical discussions use the same meanings. Clear terminology reduces ambiguity when comparing materials or describing insulation systems.

What this document covers and what it does not

This publication is primarily a definitions document rather than a product-performance specification. Its focus is on naming and describing the relevant material categories, not on prescribing test methods, numerical acceptance limits, or detailed manufacturing requirements. That makes it useful as a reference framework for electrical equipment and insulation applications where mica-based materials are selected for their general properties and construction form.

This is a withdrawn TSE edition, but it remains a useful conceptual reference for understanding the vocabulary used around mica-based insulating materials.