UL and IEC security standards

 Relative to the international standards, the American UL security standards have their own system, which are very different from the international standards.

Nowadays, there are 5 safety standards for household appliances coordinated by UL and IEC, namely: UL 60335-1 (general safety), UL 60335-2-3 (electric iron), UL 60335-2-8 (electric razor, electric shear), UL 60335-2-24 (refrigerator, ice machine), UL 60335-2-34 (motor-compressor)

The main differences between the UL standards and the IEC standards are:

Different requirements for electric shock protection and fire prevention: IEC standard is based on the AC voltage of 220~240V, the design requirements for electric shock protection are high, that is, the electrical insulation performance and electrical clearance of materials and structures are strict; and the voltage of North American electrical appliances is 110~120V, plus the building

structure is mostly wood, so the UL standard in fire protection requirements are relatively strict, the requirements for material flame resistance are higher, the polymerization materials used in key parts of the product need a high UL flame retardant grade;

main differences between the UL standards and the IEC standards are:

Different requirements for electric shock protection and fire prevention: IEC standard is based on the AC voltage of 220~240V, the design requirements for electric shock protection are high, that is, the electrical insulation performance and electrical clearance of materials and structures are strict; and the voltage of North American electrical appliances is 110~120V, plus the building structure is mostly wood, so the UL standard in fire protection requirements are relatively strict, the requirements for material flame resistance are higher, the polymerization materials used in key parts of the product need a high UL flame retardant grade;

Different test methods;

Identification mark requirements are different: UL standard has more stringent requirements for identification marks, all labels must be permanent, and the pressure sensitive nameplate and adhesive should meet the requirements of UL 969 standard

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