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5.2.7 Electrical power supply fluctuation test (IEC60098-504/ 5)
5.2.7.1 The response point of the specimen shall be measured in accordance with 5.1.3 when the external electrical power supply varies as specified in Table 3. The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax, and the lesser shall be designated Dmin.
5.2.7.1.1 In the case of tests "Combination 5" and "Combination 6", measurement of the response point may be omitted.
Table 3 - Parameters for electrical power supply fluctuation test
| |
Fluctuation |
| AC permanent |
Voltage |
Frequency |
Combination 1
Combination 2
Combination 3
Combination 4 |
+6
+6
-10
-10 |
+5
-5
+5
-5 |
| AC transient |
Voltage 1,5 sec. |
Frequency 5 sec. |
Combination 5
Combination 6 |
+20
-20 |
+10
-10 |
| DC |
Voltage |
|
For the equipment
not related
to a battery |
Voltage tolerance (continuous) |
±10 |
| Voltage cyclic variation |
5 |
| Voltage ripple |
10 |
For the equipment
related
to a battery |
For the equipment connected to a battery during
charging |
-25, +30 |
| For the equipment not connected to a battery
during charging |
-25, +20 |
|
NOTE Numerical values in the table signify percentages
for the rated value.
5.2.7.2 No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.8 Electrical power supply failure test (IEC60098-504/ 5)
5.2.8.1 Test procedure
Check the operation of the equipment when the external electrical power supply is interrupted 3 times during 5 minutes (interruption time is 30 seconds each time). The response point of the specimen shall be measured in accordance with 5.1.3 after conditioning.
5.2.8.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.9 Insulation resistance test (IEC60098-504/ 5)
5.2.9.1 Test procedure
Measure the insulation resistance between current carrying parts and between current parts and earth when measured with the application voltages specified in Table 4.
Table 4 - Test voltages for insulation resistance test
Rated voltage:
Vr(V) |
Test voltage (V) |
| Vr ≤ 65 |
2 x Vr, min.24 |
| Vr > 65 |
500 |
|
Measurements shall be carried out before and after other series of environmental tests.
For the equipment containing circuits in which electronic apparatus are used and the application of the test voltage is not desirable, the test voltage is applied after removing the circuits.
5.2.9.2 Requirements
The insulation resistance (MΩ) shall not be less than
the value specified in the Table 5.
Table 5 - Requirements for insulation resistance test
| Rated voltage |
Before test |
After test |
| Vr ≤ 65 |
10 |
1 |
| Vr > 65 |
100 |
10 |
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5.2.10 Cold test (IEC60098-504/ 5)
5.2.10.1 Test procedure
The equipment shall be switched off except for the operation test and apply the environmental condition of +5°±3℃ for 2 hours. The response point of the specimen shall be measured in accordance with 5.1.3 after recovery. The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax and the lesser shall be designated Dmin.
For the equipment installed in open decks, etc., the environmental condition of -25°±3℃ shall be applied.
NOTE For detailed test methods, refer to Test Ab of IEC 60068-2-1.
5.2.10.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.11 Dry heat test (IEC60098-504/ 5)
5.2.11.1 Test procedure
With the equipment at an operating condition, apply the environmental condition of +70°±2℃ for 2 hours. The response point of the specimen shall be measured in accordance with 5.1.3 after recovery. The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax and the lesser shall be designated Dmin.
NOTE For detailed test methods, refer to Test Bb of IEC 60068-2-2.
5.2.11.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.12 Damp heat test (IEC60098-504/ 5)
5.2.12.1 Test procedure
Apply two cycles of the environmental condition of temperature of +55±2℃ and relative humidity of 95% ± 5% for 12 hours. The equipment is operating condition during complete first cycle and switched off during second cycle except for the operation test. During the first 2 hours of the first cycle at the environmental condition and during the last 2 hours of the second cycle at the environmental condition, reduced function test shall be carried out in accordance with 5.1.4 and the response point of the specimen shall be measured in accordance with 5.1.3 after recovery. The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax and the lesser shall be designated Dmin.
NOTE For detailed test methods, refer to Test Db of IEC 60068-2-30.
5.2.12.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The specimen shall give an alarm signal in response to the reduced functional test. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.13 Salt mist test (IEC60098-504/ 5)
5.2.13.1 Test procedure
The equipment is switched off except when its operation is checked. Apply four cycles of the environmental condition of spraying NaCl solution for 2 hours and leaving for 7 days. The response point of the specimen shall be measured in accordance with 5.1.3 during the 7th day of each cycle and after recovery. The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax and the lesser shall be designated Dmin.
NOTE For detailed test methods, refer to Test Kb of IEC 60068-2-52.
5.2.13.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
5.2.14 Vibration test (IEC60098)
5.2.14.1 Test procedure
The equipment is at an operating condition and apply the sweeping of vibration specified in Table 6 over the frequency range of (+3/-0) Hz-100 Hz in order to find resonance points (points of which amplification factor: Q≥2 are considered resonance points).
Table 6 - Parameters for vibration test
| Frequency |
Amplitude or Acceleration |
| (+3/-0) Hz-13.2 Hz |
Amp. ± 1.0 mm |
| 13.2 Hz - 100 Hz |
Acceleration ± 0.7 g |
|
When resonance points do not exist, apply the vibration of acceleration ± 0.7 g at 30 Hz for 90 minutes as an endurance test.
When resonance points exist, repeat the test with necessary provisions to avoid resonance or apply the vibration (same amplitude or acceleration of resonance point) at the resonance frequency for 90 minutes as an endurance test.
The response point of the specimen shall be measured in accordance with 5.1.3 after conditioning.
The greater of the response points measured in this test and that measured for the same specimen in the reproducibility test shall be designated Dmax and the lesser shall be designated Dmin.
The test is carried out in three axis direction.
For equipment intended to be installed in severe vibration conditions such as diesel engines or air compressors, the vibration level specified in Table 7 shall be applied.
Table 7 - Parameters for vibration test (severe vibration conditions)
| Frequency |
Amplitude or Acceleration |
| (+3/-0) Hz - 25.0 Hz |
Amp. ± 1.6 mm |
| 25.0 Hz - 100 Hz |
Acceleration ± 4.0 g |
|
|
NOTE For detailed test methods, refer to Test Fc of
IEC 60068-2-6.
5.2.14.2 Requirements
No abnormality shall be observed. The equipment shall operate satisfactorily. The ratio of the response points Dmax/Dmin shall not be greater than 1,26.
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