Red insulation paper materials
Red insulation paper is a soft composite
material made of polyester film coated with adhesive and a two-layer insulation
paper made of wood pulp insulation paper on one side.
Insulation level: Class B; Temperature
resistance: 130 ℃.
Appearance: The surface is uniform, free
from burrs, bubbles, wrinkles, and defects
Usage: Red Kuaiba paper combines the excellent
insulation performance of wood pulp insulation paper and the good dielectric
strength of polyester film, widely used in electrical equipment, suitable for
slot to slot insulation, turn to turn insulation, and pad insulation of B-class
motors.
Characteristics of Red Quick Bus Paper
Products
Red fast paper has insulation and
anti-interference effects, high electrical insulation, mechanical strength,
softness, and elasticity; Red fast paper is particularly resistant to acid and
alkali corrosion, tear and wear resistance, insensitive to moisture, non-toxic
and flame resistant. Red fast paper has strong inherent dielectric strength,
mechanical toughness, flexibility and resilience, and good thermal stability.
Factors Influencing the Performance of Red Quick
Bus Paper
1. Insulation resistance and resistivity:
The smaller the conductivity of a material, the greater its resistance, and the
reciprocal relationship between the two. For red fast paper insulation
materials, it is always hoped that the resistivity is as high as possible.
2. The relative dielectric constant and the
tangent of the dielectric loss angle.
3. Breakdown voltage and electrical strength:
Under a strong electric field, the insulation material of red fast bar paper
undergoes damage, loses its insulation performance, and becomes conductive,
which is called breakdown. The voltage at breakdown is called the breakdown
voltage (dielectric strength). Electrical strength is the quotient of the
voltage at which breakdown occurs under specified conditions and the distance
between the two electrodes subjected to applied voltage, which is the breakdown
voltage per unit thickness. For red fast paper insulation materials, the higher
the breakdown voltage and electrical strength, the better.
4. Tensile strength: refers to the maximum
tensile stress that a specimen can withstand in a tensile test. It is the most
widely used and representative test for the mechanical properties of red fast
paper insulation materials.
5. Flammability: Refers to the ability of
red fast paper insulation materials to resist combustion when in contact with
flames or to prevent further combustion when leaving flames. With the increasing
application of red fast paper insulation materials, the requirements for their
flammability become more important. People use various means to improve and
enhance the flammability of red fast paper insulation materials. The higher the
flammability, the better its safety.
6. Arc resistance: Under specified test
conditions, the ability of red fast paper insulation material to withstand the
arc action along its surface. During the test, AC high voltage small current is
used to determine the arc resistance of the insulation material by the time
required to form a conductive layer on the surface of the red fast paper
insulation material through the arc action generated between the two electrodes
under high voltage; The larger the time value, the better its arc resistance.
|
NO
|
Properties
|
Unit
|
Values
|
|
1
|
Nominal thickness
|
mm
|
0.1
|
0.125
|
0.15
|
0.18
|
0.20
|
0.25
|
0.30
|
0.40
|
0.50
|
|
2
|
Thickness allowed tolerance
|
mm
|
±0.02
|
±0.02
|
±0.02
|
±0.02
|
±0.03
|
±0.03
|
±0.03
|
±0.03
|
±0.03
|
|
3
|
Nominal grammage
|
g/m2
|
120
|
138
|
155
|
180
|
210
|
255
|
300
|
450
|
550
|
|
4
|
Tensile strength（MD）
|
N/10mm
|
≥100
|
≥100
|
≥100
|
≥110
|
≥120
|
≥120
|
≥200
|
≥200
|
≥200
|
|
5
|
Tensile strength（XD）
|
N/10mm
|
≥70
|
≥70
|
≥70
|
≥75
|
≥80
|
≥95
|
≥105
|
≥105
|
≥105
|
|
6
|
Elongation（MD）
|
%
|
≥2
|
≥2
|
≥2
|
≥2
|
≥2
|
≥2
|
≥2
|
≥2
|
≥2
|
|
7
|
Elongation（XD）
|
%
|
≥8
|
≥8
|
≥8
|
≥8
|
≥8
|
≥8
|
≥8
|
≥8
|
≥8
|
|
8
|
Electric breakdown voltage
|
KV
|
≥3.5
|
≥3.5
|
≥3.5
|
≥3.5
|
≥3.5
|
≥4.5
|
≥5
|
≥5
|
≥5
|
|
9
|
Appearance
|
No delamination, no blister, no adhesive flow
|
