Epoxy glass laminate sheet

 Epoxy glass laminate  GOST-12652-74

 is made by thickness from 1,5 up to 50 mm. It is intended for work on air in conditions of normal relative humidity of an environment at a pressure from above 1000 V and frequency of a current of 50 Hz, and also for work on air in conditions of the raised humidity of an environment (93 +2) %, at temperature (40 +2) ºС at a pressure up to 1000 V and frequency of a current of 50 Hz.

High mechanical durability and electric stability allow to spend machining of a material and to use it for constructional details of an electric equipment.

Epoxy glass laminate  it is made by thickness from 0,5 up to 50 mm. Possesses the same properties, as , but has more homogeneous fine internal structure that allows to make of it fine details of an electric equipment.

It is long admissible working temperature from-65С up to +155С.

Epoxy glass laminate sheet , CHARACTERISTICS:

 

The name of a parameter	Norm
	Mark СТЭФ	Mark СТЭФ-1
Composite structure	Fiber glass fabric, epoxy  phenolic binder
Density, kg/mm³	1600-1900
It is long admissible working temperature	From-65°С up to 155°С
Breaking point at a bend to perpendicularly layers, МPа, not less	350
Breaking point at a stretching, МPа, not less	220
Impact strength on Charpy in parallel layers on samples with a cut, kJ/m2, not less	50
Specific volumetric electric resistance after air-conditioning in conditions 24h/23°С/93 % for sheets thickness up to 8mm, Оhm*m, not less	1*1010
Penetrative pressure in parallel layers (one-minute testing) in conditions М/90°С/transformer oil, КВэфф, not less	35
Resistance of isolation after air-conditioning in conditions 24h/23°С/ distilled water, МОhm, not less	5*104
Tangent of a corner of dielectric losses at frequency 1*106, after air-conditioning in conditions 24h/23°С/ distilled water, no more	0,04