How to test the battery charger IEC60335 2 29?

EN 60335-2-29 Safety of Household and Similar Electrical Appliances Part 2-29: Special requirements for battery chargers.

Note: EN is an EU standard.

Test method for thermal wires.

For thermostats, automatic switches with temperature limits, and temperature limiting devices with thermal wires, the following tests are required.

The length of the thermal line is divided into 10 equal parts, and the operating temperature deviation value of each thermal line is measured separately, and the deviation value must be within the limit of the deviation value.

Heat-sensitive. Due to the dissolution of the insulation between the thermal lines, resulting in a short circuit between the thermal lines; or a sharp decrease in the resistance between the thermally sensitive wires due to the dissolution of the insulator.

Measurement method. Divide the full length of the thermal wire into 10 equal parts, cut the thermal wire with a length of 20cm (excluding the processing part at both ends) of each sample (if the shearing of the thermal wire will cause the operating temperature to be disturbed, the thermal wire of 1 10 length is put into the thermostatic bath for measurement), the voltage value applied to the thermal wire is the same as the rated voltage value of the circuit connected to the thermal wire, and the current value flowing through the thermal line is equal to the rated current value of the connected circuit. At the same time, the operating temperature of the thermal line is measured by heating it from the outside of the thermal line at an average rate of heating per minute1.

Heat-sensitive. Changes in electrical characteristics (resistance, capacitance, impedance) caused by changes in the temperature of the insulator between thermal wires, and changes in electrical characteristics due to changes in the temperature of the thermal wires themselves. (Younai Testing Laboratory).

Measurement method. The full length of the thermal wire was cut into 10 equal parts, and the electrical characteristics of the thermal wire were measured in the thermostatic bath of the nominal operating temperature of 2 of the thermal wire for 1 hour.

General conditions for room heater testing.

1.For heaters intended to be installed in close proximity to each other, sufficient specimens should be prepared to determine the effect of the corresponding adjacent heaters on the test setup at the time of the test on the test results

2.The same apparatus used in Chapter 19 tests is also used in 2224 trials. If it is carried out on the same appliance, then 22The trials of 24 were conducted after the trials of Chapter 29.

3.Short circuit a thermostat that is sensitive to room temperature (e.g., a sensitive element placed at the air inlet of the heater). However, if the thermostat can be set to not work, it will not be short-circuited. (Younai Testing Laboratory).

4.For electronic controllers, it may be necessary to set the sensitive components to not work in place of a short circuit in the thermostat

5.Heaters intended to be installed in close proximity to each other should be installed according to the manufacturer's instructions.

6.Heaters intended to be used as portable and stationary dual-use appliances should be subjected to tests applicable to both forms.

7.If the heater is a combination of two or more heaters, it is subject to the relevant tests appropriate to each type of heater, unless one type of test includes tests of other types. Wall-mounted heaters are tested for both high-mounted and non-high-mounted heaters, unless the installation instructions specify that the heater must be installed at least m above the ground.

If your charger is to charge the battery, the battery charger uses the EN IEC60335-2-29 (the national standard is the corresponding GB4706) battery charger standard of the household appliance when doing CE certification, taking CE certification as an example.

What should be tested Reference standards, There are many requirements in the standard, and here is not a detailed description of the plug power cord selection with VDE certification, specifications and models, certificates, do you mean the certificates of the key components used in your charger? (Generally speaking, plugs, power cords, fuses, X capacitors, Y capacitors, optocouplers, PCBs, etc.), these have VDE with VDE, and UL without VDE.

Lithium battery charging plug testing has, plug specifications, models, CE certification, ROSH fire retardant certification, environmental certification, hardness, plugging force and other reports, see requirements, but lithium battery charger plug specifications and models, CE certification, ROSH, environmental protection certification is unavoidable.

If it is a DC battery charger-> IEC60335-2-29UL1310 ; If it's AC, it's about the design, and there could be a lot of criteria.

There is not much difference, they are all charging the battery, the reference standards are EN 60335-2-29 battery charger standards, basically the same, the test is generally used analog load, special products will require the direct use of the battery as the load (the maximum capacity battery specified in the manual).

As for the signing acknowledgment you said is not very understanding, generally when we do the certification, we may ask you to sign back some information, but these are some basic information of the company.

If you need certification, you can contact me.

Test Project Group Digging:

1.Signs and instructions.

2.Protection against contact with live parts.

3.Input power and current.

4.Fever (excellent testing laboratory).

5.Leakage current and electrical strength at operating temperature.

6.Resistant to moisture.

7.Leakage current and electrical intensity.

8.Overload protection of transformers and associated operating circuits.

9.Not working properly.

10.Stability and mechanical hazards.

11.Mechanical strength.

12.Structure.

The charger generally has a voltmeter and an ammeter, and if there is no ammeter, it is connected in series with a 20 amp ammeter for measurement. If the watch hand does not move, it is not charged, and if it moves, it is charging.

The charger is equipped with a voltmeter and an ammeter. When charging, look at the ammeter, pointer (or reading) to see if it crosses the zero position, and when it exceeds the zero position, it is charging.

The test is full and can measure the open-circuit voltage of the battery, that is, the OCV curve and open-circuit voltage curve of the battery.

The voltage of the battery is proportional to the battery capacity when the open circuit is not loaded, for example, it may represent 10% of the battery capacity, and 13V may represent 90%.

It's okay to use this, I use it to charge my electric car, and I know if the electric charge is upstairs.