HKTS 210SUB (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 14

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Page 12 of 12 
 
Report No.1112717 
  
IEC60065 - ATTACHMENT 
Clause 
Requirement + Test 
Result - Remark 
Verdict 
 
 
TRF No. IEC60065J 
16.3b 
(16.4b) 
Delete “Subclause 3.1 of IEC Publication 
60227-2: Part 2: Test Methods“ and insert 
“Subclause 9.1 of SS 236“: 
9.1 Flexing test (except for tinsel cords, twisted 
twin and single core cords). The test shall be 
carried out by means of the apparatus shown 
in Figure 5. This apparatus has a carrier C 
supporting two pulleys A and B arranged so 
that the cord is horizontal between the pulleys. 
The carrier moves backward and forward over 
a distance of 1 m at an approximately constant 
speed of 0.33 m/s. 
A sample of flexible cord about 5 m long shall 
be stretched over the pulleys as shown in the 
figure, each end being loaded with a weight. 
The weight and the diameter of the pulleys A 
and B shall be given in Table 1. 
Screen cords in accordance with Table 7 shall be 
tested before application of the screen and outer 
sheath. 
The pulleys shall have a semi-circular shaped 
groove for circular cords and a flat groove for 
parallel twin cords. The restraining clamps D shall 
be fixed so that the pull is always applied by the 
weight from which the carrier is moving away. 
The carrier shall make 30 000 backward and 
forward movements (60 000 single strokes). Each 
conductor of the sample shall be loaded with the 
current specified in Table 2. 
For twin cords and for light PVC-sheated 3-core 
cords, the voltage between the conductors shall 
be approximately 230 V a.c. For all other cords 
having three or more cores a three-phase a.c. 
voltage of about 400 V shall be applied to three 
conductors, any additional conductors being 
connected to the neutral. 
During the test no open-circuit in any core or 
short-circuit between cores shall occur. 
After the test, any sheath on cords having three 
or more cores shall be removed. The cord, or the 
laid up cores, shall then withstand the voltage test 
specified in Subclause 8.2 or 8.3 as appropriate, 
but with a test voltage not exceeding 2000 V. 
TABLE 1, TABLE 2, FIGURES 4 and  5, see the 
CB BULLETIN 
 P 
* in parenthesis: clauses acc. to IEC 60065:1993 
 
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