Introduction of CEC certification
CEC certification by the energy commission California America (California EnergyCommission)) in December 30, 2005 in accordance with the law of electricalenergy efficiency regulations (Appliance Efficiency Regulation). Theimplementation regulations aim is to improve the use efficiency of electricalproducts, saving energy, reducing emissions and greenhouse effect.
With more and more electronic products appear in daily life, "energy saving" will become the urgent problem in twenty-first Century all people must face. Americathe California Energy Commission (California Energy Commission, CEC) coming in July 1, 2006 for AC-DC and AC-AC external power supply efficiency of energy use in the implementation of mandatory standards, new at that time, almost all electronic products will suffer.
The standard will cover all of the use of an external power supply (such as chargers and adapters) products, including mobile phone, cordless telephones,portable music players, handheld games, toys, and requirements of theseproducts in the standby and the use of state to more efficient ways to useenergy.
Since this means that in 2006, all in USA use, and are sold Americantransformer, the external power supply, adapter, charger must change the design.
In addition to saving energy, CEC new specification will also have a significant impact in the field of environmental protection. According to statistics from the company, if the external power supply all of California can follow the newstandard, a year in California will be able to reduce carbon emissions more than 360000 tons every year the amount of radiation, the number of the equivalent of 60000 cars.
The regulations, electrical products must meet energy efficiency of equipment inCalifornia sales America regulations, provisions of the energy efficiency index requirements, measuring method and implementation of phase plan of the regulations for the 58 type of electrical products. According to the regulations,must be qualified by the laboratory of electrical products were detected byAmerican corresponding regulations or standards, proved to meet the requirements before they can be in American California sales.
Testing method for CEC certification
1 Introduction
CEC is the energy committee of the California state American referred to, it is the responsibility of the energy market towards the direction of the development ofbenign competition.
From the beginning of July 1, 2006, where the external power supply (AC/AC,AC/DC, adaptor) USA export California, must meet the energy committee of the California state American promulgated the energy efficiency regulations in California, the California energy efficiency regulations is a new energy efficiency regulations developed on the America energy star.
2 Scope
Scope definition of external power supply of CEC is the external power adapter:single-phase voltage input AC/DC or AC/AC.
The 3 definition
Here, we introduce some noun test standard in CEC, such as
The Active Mode: operation mode. Refers to the mode power supply under operating conditions.
The Active Mode Efficiency: the working mode of energy efficiency. The working mode of energy efficiency ratio is equal to the real power output mode and realinput power. Usually a percentage to reflect.
No Load: no load mode. Refers to the input voltage in the joint, but no groundload under mode.
No Load Power: the no-load power. To show the product in the no-load modeinput power.
The UUT: UNIT UNDER TEST is the abbreviation of.
Will Ambient Temperature: ambient temperature. At that time the environmenttemperature test.
Power Factor (True), power factor. Its value is equal to the ratio of the real power loss / apparent power.
, Total Harmonic Distortion (THD): total harmonic distortion.
Only Apparent Power (S): the apparent power. The product of the input voltage and input current.
I have Nameplate Input Voltage: the nameplate of the input voltage, refers to theinput voltage customer claims on the label of the product.
His Nameplate Input Frequency: input voltage nameplate on customer claimfrequency.
The Nameplate Output Voltage: the product nameplate nominal output voltagecustomers.
How Nameplate Output Current: the product nameplate nominal output currentcustomers.
The 4 test
The summary:
Test regulation, unless otherwise stated, otherwise are in accordance with thefollowing conditions to test test.
The test instrument:
Power must be measured using calibrated volt ampere meter or power analyzerto test. The instrument must be proofread according to IEC 62301 standard,when testing the power in the 0.5W, the error must be less than or equal to 2%.In the test power is less than 0.5W when the error must be less than 0.01W.Instrument power testing accuracy must reach 0.01W or better. Error measurement of voltage and current must be less than or equal to 2%.
The test room
According to the requirements of IEC 62301 standard, the air flow test room must be 0.5m/s or smaller, surrounding temperature must range control at 23 - 5 Deg. C within the sample must be placed in the experimental stage without heat conduction is tested on. For outdoor use products, if there are additional testingrequirements, must come out and explained in the report.
The test voltage
According to the requirements of IEC 62301 standard, the fluctuation range can't test voltage exceeds the specified test voltage of + 1%, and specify the testfrequency + 1%. If the input voltage nameplate is the subject of wide voltage, the test voltage is 115V/60Hz and 230V/50Hz two kinds of circumstances, if the nameplate marking is single input voltage, then the test voltage is above two of the test voltage is close to the one of a kind.
The results of judgment
California energy law, from July 1, 2006 onwards, where the external power supply to export to the United States of California must meet the following table