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Charger standards and certification

Charger standards and certification

  • Categories:Company News
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  • Time of issue:2020-07-05

(Summary description)There is no special standard for chargers before. EU chargers use EN60950 as the standard, and American chargers have UL60950 as the standard.

Charger standards and certification

(Summary description)There is no special standard for chargers before. EU chargers use EN60950 as the standard, and American chargers have UL60950 as the standard.

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2020-07-05
  • Views:0
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There is no special standard for chargers before. EU chargers use EN60950 as the standard, and American chargers have UL60950 as the standard. But the actual 60950 is the power adapter standard, not the standard for the charger, because there is no standard. So manufacturers all quote the 60950 adapter standard, but now both the European Union and the United States have listed the latest charger standards. The European Union charger is divided into two parts below 42V using the EN60335-2-29 standard, 42V and above using the 60335-1 standard, and the United States Unified use 1012 as the special charger standard.
During the certification process, Europe and the United States have similar requirements for charger testing. Take the US 1012 charger applied by our company as an example: the applied power range is about 400W, the ternary lithium battery charger 1-20 series 4.2V-84V, lithium iron phosphate charging 1-20 string 3.65V-73V, lead-acid battery charger 1-6 string 14.6V-87V, during the certification process, each string of batteries needs to provide 2 sets for certification testing, and the total number needs to provide close to 100 sets of various batteries For testing, the charger needs to sample up to 60 samples for testing.
400W charger features: operating environment -29°-50°, fan-free fully enclosed design, efficiency up to 95%, PFC>0.95, pure PC plastic shell, double-layer insulation design, the product belongs to the second-class power supply, no grounding, life Up to 30,000 hours at least, product warranty for 3 years, safer and more reliable.
With the same power, the design of the enclosure with a fan, the conversion efficiency is low, up to 85%, the product heats up seriously, so a fan is required to dissipate heat, but the life of the fan is 2-3 thousand hours, and the life of this type of product depends entirely on the fan If the fan is broken, the charger is broken, and there is a gap between the fans, sand, dust, and water vapor can enter, which is very easy to cause a short circuit. It has high requirements on the environment of use. The metal shell of the product belongs to a class of power supply and needs to be grounded. Safety and reliability are not assured.

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