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GPO-3
Custom GPO-3 Machined Parts:

JY machinery is the professional manufacturer of electrical insulating parts GPO-3.
Precision further processing and stability guarantee of material have made us became the solver of electric insulation technology project.

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GPO-3 is rigid laminated sheet consisting of polyester resin reinforced with fiberglass mat.

  • Applications:Widely used in low&middle voltage electrical equipment as insulating structures,automotive industry field,electrical motor,etc.
  • Thickness:0.8-100mm
  • Standard Sheet Sizes:1020*1220mm 1000*2000mm 1220*2440mm


The features of GPO-3:

-Excellent track,arc,and flame resistance
-Low smoke,Halogen free
-Excellent Mechanical strength
-Good thermal properties
-Excellent heat resistance(Class F)

Glass fiber Polyester GPO-3 complies with standards: NEMA-GPO-3, DIN 7735-HM 2471, EN60893/IEC893-UPGM 203

Properties:

Grade

JY-GPO3

IEC 893 / EN 60893 Grade

UP GM 203

DIN 7735 Grade

HM 2471

ANSI (NEMA) Grade NEMA LI-1

GPO-3

Test Items

Test Method

Unit

Typical Values

Physical Properties

Color

Visual inspection

---

Red/White/Brown/Grey

Specific Gravity

IEC 60893-2:2003

g/cm3

1.95-2.05

Water absorption

ISO62:2008

%

≤0.5

Mechanical properties

Tensile Strength

IEC 60893-2:2003

Mpa

≥130

Compressive strength

IEC 60893-2:2003

≥300

Flexural Strength

IEC 60893-2:2003

≥180

Impact strength

IEC 60893-2:2003

KJ/m2

≥60



Electrical properties


Volume Resistivity

IEC 60093:1980

Ω·m

≥ 1.0 x 1010

Surface Resistivity

IEC 60093:1980

Ω

≥ 1.0 x 1012

Electric Strength ┴

IEC 60893-2:2003

kV/mm

≥ 12

Breakdown Voltage

IEC 60893-2:2003

kV/25mm

≥ 80

Arc Resistance

IEC 61621:1997

sec

≥180

PTI   Proof Tracking Index PTI

IEC 60893-2:2003

---

≥600

Dielectric Constant

IEC 60893-2:2003

---

4.0-5.0

Dissipation Factor

IEC 60893-2:2003

---

≤0.03

Thermal properties

Coefficient of Thermal Expansion

ASTME 228-11

1/K

≤2x10-5

Temperature Index

IEC 60085:2004

155

Flame Resistance performance

Oxygen Index

ISO 4589-2:1996

%O2

≥ 30

Flame Resistance

IEC 60893-2:2003

---

V-0

Toxicant(Emission halogen etc.)

E662

---

Low

Other properties

The anti microbial properties of bacteria

G21-G22

---

good



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