Glass-cloth laminate

Area of usage: used as insulating material.

For working in open air at RH of 45-75% and temperature of 15-⁰С

Glass-cloth laminate is manufactured as sheets of 540-980 mm width and 600-1480 mm length.

type	Area of usage and properties	Working temparetures, ⁰С
ST	For working at tension of up to 1000V and current frequency of 50 Hz	-65 +130
STEF	For working at tension of more than 1000 V and current of 50 Hz, also for working in the open air with high RH (RH of 93%, temperature 40 C, tension up to 1000 V and current of 50 Hz);high mechanical strength at moderate temperature, high stability of electrical properties at high RH	-65 +155
STEF-1	The same as STEF, but has more homogenous fine internal and surface structure	-65 +155
STEB	The same but also with reduced inflammability	-65 +140
STK	For working at tension of more than 1000 V and current of 50 Hz, also for working in the open air with high RH (RH of 93%, temperature 40 C, tension up to 1000 V and current of 50 Hz)	-65 +180