When choosing power strips, the housing material directly determines safety and durability. The market commonly offers “pure PC” or “AB material” options, yet professional-grade power strips widely adopt flame-retardant AB material (PC+ABS alloy). Here’s why:
1. Dual Advantages of AB Material
High-Strength Protection
AB material = Polycarbonate (PC) + ABS resin composite:
- PC Layer: Provides extreme heat resistance (withstands 130°C without deformation) and light transmittance
- ABS Layer: Enhances impact resistance, protecting against accidental drops
Ultimate Flame Retardancy
Certified by UL94 V-0 international flame-retardant standard:
- Self-extinguishes within 3 seconds upon open flame exposure
- Eliminates fire spread risks (pure PC only meets V-2 rating)
2. Critical Flaws of Pure PC Power Strips
High-Temperature Brittleness Risk
Pure PC degrades over time:
- Yellows and becomes brittle above 80°C
- Cracks form due to heat from internal copper components
Low-Cost Trap
Pure PC costs 30%-50% less than AB material, but:
- Poor anti-aging performance (loses 50% strength after 2 years)
- Zero flame-retardant layer = Electrical fire hazard
3. Safety Selection Guide
Verify two key indicators:
- Housing marked “PC+ABS” or “AB Material”
- Certifications: UL94 V-0 / CCC / CE
Pro Tip: When purchasing, press the housing with your fingernail – pure PC dents permanently, while AB material springs back instantly!