HK 990 (serv.man4) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 50

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Report No. 902952-1 
 IEC 
60065
Clause 
Requirement – Test 
Result - Remark 
Verdict 
 
 
TRF No.: IEC60065F 
 
TRF Originator: ASTA BEAB 
17 
17.9A 
 
17.9A.1 
 
 
 
 
 
 
 
 
 
 
 
 
17.9A.2 
 
17.9A.2.1 
 
 
 
 
17.9A.2.2
 
Electrical connections and mechanical fixings 
Adhesive securement and conductive coatings 
[Add the following clause] 
Adhesive securement 
The following parts, the displacement of which may result in a 
fire or shock hazard, shall not be secured solely by adhesive, 
unless 
the adhesive system complies with the resistance to external 
forces test of Clause 9.1.7, the bump test of Clause 12.1.1, 
and the 
impact test of Clause 12.1.3, after conditioning in accordance 
with Clause 17.9A.2: 
a) internal metal parts/conductive coatings; 
b) barriers; and 
c) required enclosure parts. 
Note: Cathode ray tubes are excluded from this test. 
Adhesive and conductive coating securement 
conditioning 
General 
Where required by Clause 17.9A.1, one sample of the 
apparatus or enclosure section shall be conditioned in 
accordance with the requirements of Clause 17.9A.2.2. 
Equivalent aging test data supplied by the manufacturer may 
be considered in lieu of aging. 
Aging 
Day 1: 
Place sample in oven at 100 ± 1EC for 1 week, or 82 ± 
1EC for 8 weeks, at the manufacturer’s option. 
Day 8 or day 57: 
1. Remove from oven and leave at room temperature for 1 h. 
2. Place in freezer at –35 EC for 2 h. 
3. Remove from freezer and allow to reach room temperature 
overnight. 
Day 9 or day 58: 
1. Place in a compartment at 96% relative humidity for 3 h. 
2. Remove and leave at room temperature and humidity for 1 
h. 
3. Place in oven at a temperature selected in the first cycle for 
3 h. 
4. Remove and allow to come to room temperature overnight. 
Day 10 or day 59: 
1. Place in freezer at –35 EC for 2 h. 
2. Remove and leave at room temperature for 1 h. 
3. Place in humidity chamber at 96% relative humidity for 3 h. 
4. Remove and allow to come to room temperature overnight. 
Day 11 or day 60: 
1. Place in oven at the temperature selected in the first cycle 
for 3 h. 
2. Remove for 1 h. 
3. Place in freezer at –35 EC for 2 h. 
4. Remove and allow to come to room temperature overnight. 
Day 12 or day 61: 
1. Place in humidity chamber at 96% relative humidity for 3 h. 
2. Remove and perform mechanical tests as required by 
Clause 17.9A.1 as applicable. 
 
N/A 
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