electrical insulating materials. Textolite and asbestos-textolite. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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electrical insulating materials. Textolite and asbestos-textolite. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Electrical materials

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Textolite and asbestos-textolite structural - layered sheet pressed materials, consisting of several layers of cotton or asbestos fabric impregnated with thermosetting resins. Electrical sheet textolite produced in various brands.

Textolite grade A has improved electrical properties, as well as resistance to mineral oils and is designed to work in transformer oil and in air (relative humidity 45-75% at 15-35 °C) at a frequency of 50 Hz.

Textolite brand B differs in high mechanical properties and is intended for work on air (relative humidity 45-75% at 15-35 °C) at a frequency of 50 Hz.

Textolite brand G differs from grade A in extended tolerances for thickness and warping.

VCh brand textolite has increased water resistance and low dielectric losses at high frequency and is designed to operate in air at a frequency of 10⁴ Hz and ambient temperature from -60 °С to +105 °С.

Textolite brand LT has increased water resistance, good stampability and is designed to work in air at high relative humidity (relative humidity 95% at 35 °C) at a frequency of 50 Hz.

Parameters of electrical sheet textolite are given in table. 1.5.

Table 1.5. Electrical sheet textolite

Textolite and asbestos-textolite

Author: Koryakin-Chernyak S.L.

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