IEC 60371-3-1:2006 

Specification for insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 1: Commutator separators and materials


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IEC 60371-3-1:2006 applies to several types of rigid materials based on mica splittings or mica paper for commutator separators. These products shall be made from muscovite or phlogopite mica, built up from mica splittings or mica paper by the use of a suitable bonding medium. They are supplied in the following forms:
- sheets in the dimensions in which they are pressed or after trimming;
- strips cut from sheets;
- commutator separators having the shapes and dimensions and in the conditions ordered by the user. The normal manufacturing thicknesses lie between 0,3 mm and 2 mm. This third edition of IEC 60371-3-1 replaces the second edition, published in 1984, and constitutes a technical revision. The main changes with regard to the previous edition concern the modification of clause numbers to align with clause numbering in the latest edition of IEC 60371-2:2004. Keywords: mica splittings or mica paper for commutator separators, muscovite or phlogopite mica

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Additional information

Publication typeInternational Standard
Publication date2006-06-13
Available language(s)English, English/French, Spanish
TC/SCTC 15 - Solid electrical insulating materialsrss
ICS29.035.50 - Mica based materials
Stability date  2025
File size1066 KB

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