BS/EN 62863-2017 pdf download.Methods of measuring performances of electric hair clippers or trimmers for household use.
5.7 Test of airborne acoustical noise
The test shall be carried out according to IEC 60704-2-8:1997.
NOTE The test set up is shown In Annex B.
The result of A-weighted sound power leve’ Is recorded.
5.8 Test of reliability of the mechanical Ielectrical connection between the adapter and the cord/cordless rechargeable hair clipper or trimmer
The axis of both the pin of the adapter and the socket of the clipper or trimmer are kept in a horizontal position and aligned with each other. The pin is inserted into the socket of the clipper or trimmer and then the plug is pulled out of the socket with the maximum pull force being measured and recorded. Then the pin is inserted into and pulled out of the socket of the clipper or trimmer with the charger plugged Into the supply mains. One cycle includes one insertion and one extraction. Care should be taken not to pull on the cord.
The test is repeated and the pull force and the electrical connection shall be checked and recorded at intervals of 60 cycles. The electrical connection is checked by observing the charging indicator, or the currentlpower meter if no charging indicator is present (see Figure 7). When checking the electrical connection while charging, the cord is positioned at multiple angles to verify no intermittent connection. The device shall not be switched on during the test.
When 600 cycles are reached, the test is terminated.
Fully charge the device according to the instructions for use. Oil the cutting unit according to the instructions for use. When it is fully charged, the hair clipper or trimmer shall be disconnected from the power supply. Let the device rest and the rest period shall be at least I h and not exceed 24h.
Run the device according to the no-load test condition specified in 5.3 for 10 mm. Switch off the device for 10 mm. Repeat these on-off cycles until it stops (r/min is zero). The accumulated working minutes of the device are recorded.
5.10 Determination of energy consumption of battery-operated hair clipper or trimmer
The battery-operated hair clipper or trimmer is supplied from a DC supply with the voltage equal to the battery’s rated voltage as specified in the instructions for use. Run the device according to the no-load test condition specified in 5.3 for 1 mm. Then start to measure the total energy consumption for 10 mm. The obtained energy consumption (Wh) is recorded.
5.11 Endurance test
5.11.1 The corded hair clipper or trimmer is supplied with the rated voltage and is operated according to the no-load test condition specified in 5.3 for 10 mm, then stopped and rested for 10 mm, This cycle is repeated until the unit fails to operate or the predetermined accumulated working hours are reached, whichever Is shorter. During this period the ability-to-cut test specified in 5.6 is performed and the ability-to-cut test intervals are done as follows:
— Ability-to-cut test is carried out once every 12 h for accumulated working time not exceeding 36 h;
— Ability-to-cut test is carried out once every 48 h for accumulated working time exceeding 36 h.
The total accumulated working hours are recorded, along with the times for the ability-to-cut test. Failure mode is also recorded.
The predetermined working hours may be agreed between the manufacturer or the client and the laboratory before the endurance test.
During the test, the hair clipper or trimmer shall be lubricated once per 12 h of accumulated working time and before the ability-to-cut test.
5.11.2 The rechargeable hair clipper or trimmer Is fully charged at the rated frequency and the rated voltage and in accordance with the requirements in the instructions for use. The hair clipper or trimmer is operated according to the no-load test condition specified in 5.3 for 10 mm. then stopped and rested for 10 mm. The hair clipper or trimmer shall be disconnected from the charger during operation. When the battery becomes empty. It shall be recharged according to the manufacturers instructions for use. This cycle is repeated until the unit (including the charger) fails to operate or the predetermined accumulated working hours are reached, whichever is shorter. During this period, the ability-to-cut test specified in 5.6 is performed and the ability-to-cut test intervals are done as follows:BS/EN 62863-2017 pdf download.