TS 7207

TS 7207 is a standard that defines the terminology, general rules, and supply form for mica-based insulating materials. It addresses insulating materials used in electrical equipment, including products made from mica splittings or mica paper, with or without reinforcement, as well as materials made from pure mica paper.

What counts as a mica-based insulating material

In general technical terms, mica is valued in electrical insulation because it combines good dielectric behavior with useful thermal resistance. In practice, mica may be used as loose splittings, processed into paper, or built into layered composite structures with reinforcing carriers. The distinctions between reinforced and unreinforced forms, and between mica-splitting-based and mica-paper-based products, matter because they describe the product architecture, handling characteristics, and typical application profile.

Why a terminology standard matters

This standard provides a common vocabulary for describing these materials and their general classification. In electrical manufacturing, that shared language helps align specifications, cataloguing, and procurement so that the same material is not described inconsistently across documents. In broader engineering context, a terminology standard organizes names and basic rules; it does not, by itself, imply detailed performance testing unless such requirements are explicitly stated in the standard text.

• Terminology for mica-based insulating materials used in electrical equipment
• Products based on mica splittings or mica paper
• Reinforced and unreinforced forms
• Materials made from pure mica paper
• A general framework for definitions, general rules, and supply form