Home >

Knowledge

28Apr 2026

What material is suitable for oil immersed transformers?

Oil immersed transformer compatible insulation materials： Based on your previous inquiries about GPO3, SMC, and epoxy, please clarify them all at once and purchase directly.
28Apr 2026

Can GPO-3 be used for oil immersed transformers?

GPO-3 (UPGM203, unsaturated polyester glass felt) can be used for oil immersed transformers, but can only be used as insulation components that are not immersed in oil for a long time.
20Apr 2026

Where can GPO-3 be used for AI?

Where is GPO-3 used in AI? Used in the "strong power supply part" of AI servers, data centers, and cabinets: -Distribution cabinet UPS、 The phase partition and insulation partition in the switch
20Apr 2026

Is GPO-3 a very standard and mainstream choice for low-voltage electrical app...

GPO-3 can be used as a phase partition and is a very standard and mainstream choice in low-voltage electrical appliances such as circuit breakers and switchgear.
20Apr 2026

What is the difference in application between GPO-3 and GPO-1?

The GPO1 and GPO3 you mentioned, also known as GPO-1 (UPGM201) and GPO-3 (UPGM203), are both unsaturated polyester glass fiber felt laminates commonly used in the power industry as insulation material
23Mar 2026

What flame retardant standard is B1?

EU EN 13501-1: B1 ≈ Class B/Class C (flame retardant)
23Mar 2026

What is the difference between flame retardant level B1 and V0?

B1 and V0 are two completely different flame retardant standard systems that cannot be directly equated. The core differences lie in the source of the standards, testing methods, assessment dimensions
03Mar 2026

What is the compliance limit for lead in GPO-3?

Compliance limit (strict) -EU RoHS: Lead ≤ 1000 ppm (0.1%) -National standard/industry: usually requires ≤ 100 ppm -Legitimate GPO-3: Lead content * *<50 ppm, even<10 ppm * *, far below the limi
03Mar 2026

Does GPO-3 material contain lead?

The legitimate GPO-3 material itself does not contain lead, and compliant products have extremely low lead content and meet environmental standards.
09Feb 2026

Why is the CTI value of epoxy lower than SMC?

The CTI value of epoxy materials is often lower than that of SMC, mainly due to differences in the type of matrix resin, formulation system, filler, and molding process, resulting in different surface
09Feb 2026

Which parts of the ring main unit can SMC be used for?

SMC (sheet molded plastic insulation board) has excellent electrical insulation, mechanical strength, flame retardant and temperature resistance, and dimensional stability characteristics. It is the m
28Jan 2026

How to test the durability of GPO-3 material?

Core Testing Framework- First measure the initial performance: mechanical, electrical, and thermal performance (baseline values)- Aging treatment: Temperature and humidity cycling, thermal aging, humi

First 1 234 5 6 7 Last 3/42

Knowledge

What material is suitable for oil immersed transformers?

Can GPO-3 be used for oil immersed transformers?

Where can GPO-3 be used for AI?

Is GPO-3 a very standard and mainstream choice for low-voltage electrical app...

What is the difference in application between GPO-3 and GPO-1?

What flame retardant standard is B1?

What is the difference between flame retardant level B1 and V0?

What is the compliance limit for lead in GPO-3?

Does GPO-3 material contain lead?

Why is the CTI value of epoxy lower than SMC?

Which parts of the ring main unit can SMC be used for?

How to test the durability of GPO-3 material?