Haier HBC-200 Service Manual - Page 54

Electrical intensity, 8.2.4 Ground resistor, 8.2.5 Leakage of current, 8.2.6 Noise test

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Refrigerator Model:HBC-70/200（India） MAINTENANCE SERVICE AND TROUBLE SHOOTING 12.8.2.3 Electrical intensity This test is to check the electrical intensity of live parts and all accessible metal parts. The testing equipment is flashover and breakdown unit, voltage is 1650V (50Hz) for 2s. At the test, there will not flashover and breakdown occurring. 12.8.2.4 Ground resistor Check the voltage drop between refrigerator ground connection point and accessible metal parts, using AC power of load empty voltage not over 12V and 10A current. Calculate the resistance according to the current and voltage drop. Ground connection resistance shall not exceed 0.1 ohm. 12.8.2.5 Leakage of current When testing, give 1.06 times rated voltage to the refrigerator, and make the test at operation status. The test complies with GB4706.1-84, the leakage current testing instrument is made in accordance with the stipulations. The leakage current measured shall not exceed 1.5mA. 12.8.2.6 Noise test This test is carried out at semi sound eliminating room. The refrigerator is put to the geometrical center of room, on a 5-10mm thick elastic cushion. The refrigerator should be empty when testing. Turn the knob of temperature controller to middle or near to strong position and close the door. Test after the refrigerator has running more than 30 minutes. The refrigerator noise power level, 250L and below, ≤52dB(A); 250L above ≤55dB(A) ５３ PDF created with pdfFactory trial version www.pdffactory.com

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Refrigerator
Model:HBC-70/200
（
India
）
５３
MAINTENANCE SERVICE AND TROUBLE SHOOTING
12.8.2.3 Electrical intensity
This test is to check the electrical intensity of live parts and all accessible
metal parts. The testing equipment is flashover and breakdown unit,
voltage is 1650V (50Hz) for 2s. At the test, there will not flashover and
breakdown occurring.
12.8.2.4 Ground resistor
Check the voltage drop between refrigerator ground connection point and
accessible metal parts, using AC power of load empty voltage not over 12V
and 10A current. Calculate the resistance according to the current and
voltage drop. Ground connection resistance shall not exceed 0.1 ohm.
12.8.2.5 Leakage of current
When testing, give 1.06 times rated voltage to the refrigerator, and make the
test at operation status. The test complies with GB4706.1-84, the leakage
current testing instrument is made in accordance with the stipulations. The
leakage current measured shall not exceed 1.5mA.
12.8.2.6 Noise test
This test is carried out at semi sound eliminating room. The refrigerator is
put to the geometrical center of room, on a 5-10mm thick elastic cushion.
The refrigerator should be empty when testing. Turn the knob of
temperature controller to middle or near to strong position and close the
door. Test after
the refrigerator has running more than 30 minutes. The refrigerator noise
power level, 250L and below,
≤
52dB(A);
250L above
≤
55dB(A)
PDF created with pdfFactory trial version
www.pdffactory.com