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    Insulation materials

    Electrotechnical fiberglass sheet

    Physical, mechanical and electrical characteristics:

    Indicator

    Unitofmeasurement

    Density

    kg/м3

    1600 - 1900

    Breaking voltage under perpendicular flexure

    layers, not less

    MPа

    280

    Breaking voltage underextension, not less

    MPа

    200

    Charpy impact viscosity parallel to the layers

    on the samples with incision, not less

    kJ/sq. m

    30

    Volumeresistivityafter

    conditioning under 24 hours /23°С/93% for blades

    thickness up to 8 mm, not less

    Ом*м

    1*110

    Breakdown voltage parallel to the layers

    (one-minute testing) under

    М/90°С/transformer oil, not less

    кВЭФФ

    35

    Insulation resistance after conditioning

    under 24h/23°C/distilled water, not less

    МОм

    5*104

    The dielectric loss tangent at frequency 1*106

    Hz after conditioning under

    24h/23°C/distilled water, not more

    0,04

     

    Fiberglass EZ-200, GOST 19907-83

    Fiberglass - effective non-flammable, environmentally friendly, anticorrosiveelectro- and heat impermeable glass material. Used for the manufacture of electrical insulating materials and foil dielectrics in construction, insulation of walls and pipes, as well as in agriculture (protection of seedlings, insulation of buildings) and others. It is efficient at t ° to + 450 ° C.

    Thickness 0.17 mm, width 1000 mm. Weight 1 m2 - C 0.2 kg.

     

    Textolite PT и PTK, GOST 5-78

    Technical characteristics

    PT

    PTK

    Bendingvoltage under breaking, MPа (kgf/см2), not less

    108 (1100)

    137 (1400)

    Breaking voltage under compression, MPа (kgf/см2) parallel to the layers, not less

    120 (1220)

    130 (1326)

    Charpy impact viscosity on the samples without incision, kJ/м2 (kgf/см•см2), not less

    24 (25)

    34 (35)

    Waterabsorption, %, notmore

    1.0

    0.9

     

    Teflon brand F-4 TU6-05-810-88

    Reference indicators of teflon

    Physical:

    Density, kg/м3

    2100-2200

    Work temperature, °С

    от -269 до +260

    Melting temperature, °С

    +327

    Waterabsorptionfor 24 hours, %

    0.0

    Coefficient of thermal conductivity at room temperature, W/м.degr.

    0.25

    Mechanical:

    Breaking voltage under extension, MPа

    20-30

    Elongationatbreak, %

    350

    The coefficient of friction on steel

    0.2

    Brinell hardness (ball indentation), MPа

    30-40

    Electrical:

    Surfaceresistivity, Ohm * m

    1017-1020

    Volume resistivity, Ohm, notless

    1017

    Dielectric loss tangent at a frequency of 106 Hz

    0.2-0.3

    Dielectric permeability at a frequency of 106 Hz

    0.0019-0.0022

    Dielectricstrength,kV / mm

    50

     

    FUM

    Oil petrol-resistant, anti-corrosive, self-lubricating, non-toxic, heat and chemical resistant sealing material produced of PTFE-4D. The tape is designed to seal the fixed threaded connections of all materials during the plumbing, car repair, repair of household appliances and other purposes.

    Applied at t° from -60°C to + 200°C and a pressure of the environ to 10 MPa.

    Supplied in coils, thickness 0.1 mm, width 10 mm (C 0.2 kg), 15 mm (C 0.4 kg), 20 mm (C 0.5 kg), 25 mm (C 0.9 kg) and 60 mm (C 1.7 kg). There are also a winding of 10 mm width and a weight of 25 grams.