New Chinese Technical Standards for Household
Apr 3, 2025 · In January 2025, China announced important revisions to its technical standards for household electrical appliances and power supplies.
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Household Portable Power Supply
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6 Frequently Asked Questions about “Household portable power supply standard”
What is the difference between a portable and a movable appliance?
Portable appliances have the same requirements as hand-held devices (0.75 mA), while stationary and movable devices of IEC/ EN 60950-1 have the same requirements as the stationary appliances of IEC/ EN 60335-1 (3.5 mA).
Does IEC 60335-1 2020 prohibit the use of a detachable power supply?
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable power supply part of an appliance. In the document, 24.2 prohibits the use of a power supply in a flexible cord. Does Subclause 24.2 prohibit the use of a detachable power supply part?
What are the different types of power supplies?
These power supplies are offered in power levels from 2 to 60 watts with up to 90% efficiency and come in a variety of mounting styles including board mount, chassis mount, or DIN rail (Figure 4).
What are Energy Star standards for external power supplies?
It started with relatively simple ENERGY STAR standards for external power supplies in the 1990s. Today, there are standards tailored for the specific operating conditions of various applications, ranging from data center power supplies to white goods, LED light bulbs, electric vehicle battery chargers, photovoltaic inverters, and others.
Can a power supply cord be detachable?
No, a "detachable power supply part" is a defined term and is not captured by the term "power supply" as used in Subclause 24.2. the class III construction part of the appliance. However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
How does a power supply work?
Power supplies convert household electric current (around 120 volts in the United States) to lower AC or DC voltages on which many electronic products operate. The Energy Independence and Security Act (EISA) of 2007 established standards for single-voltage EPSs with output power ≤250 W, which took effect in 2008.