ON TOUR (serv.man6) - JBL Audio EMC - CB Certificate (repair manual). Page 46

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IEC 60950 3rd Ed., 1999. 
- Page 5 of 5 - 
 
 
 
 
Order No.  23172 
 
 
Clause 
Requirement - Test 
Result - Remark 
Ver-
dict  
U.2.2 
Replacement: 
Flexibility and adherence 
Test 8 of IEC 60851-3:1996, 5.1.1, using the mandrel 
diameters of table U.1. The test sample is then 
examined in accordance with IEC 60851-3:1996, 
5.1.1.4, followed by the test of 5.2.2 of this standard 
except applying the test voltage between the wire and 
the mandrel. A test voltage shall not be less than  twice 
the appropriate voltage in table 5B (see 5.2.2) of this 
standard. However, the minimum values shall be as 
follows: 
- for BASIC INSULATION or SUPPLEMENTARY 
INSULATION, 1500 V, or; 
- for REINFORCED INSULATION, 3000 V.  
NOTE: “twice” in the 6
th
 line is deleted  –  ref. 
confirmation by Japan NCB  – JQA.
 
No TIW used. 
— 
Table U.1 
Replacement: 
Mandrel diameter 
 
The tension to be applied to the wire during winding on 
the mandrel is calculated from the wire diameter to be 
equivalent to 118 Mpa ± 10 % (118 N/mm2 ± 10 %). 
No TIW used. 
— 
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