SB 200 (serv.man3) - JBL Audio EMC - CB Certificate (repair manual). Page 14

Page 14 of 70 

Report No.: 350-120155AX 

 
  

 

 

 

 

 

Clause 

Requirement + Test 

Result - Remark 

Verdict

 

TRF No. IEC60065K 

14.3.1 

Transformers and inductors marked with 
manufacturer's name and type ...............................: 

T5311-1, 
 
Manufacturer Trademark: 

  

Type: BCK-EC28-W-5633 
-Alt. use- 
Manufacturer Trademark:  

 

Type: BCK- AJ140 
-Alt. use- 
Manufacturer Trademark: 

 

Type: BCK-03EC28. 

Pass 

 

Transformers and inductors separately approved .: 

No. 

N/A 

14.3.2 

General  

T5311-1: Isolating transformer.

Pass 

 

Insulation material complies with clause 20.1.4  

See appended table of CL.14.

Pass 

14.3.3 

Constructional requirements  

See appended table of CL.14. 

Pass 

14.3.3.1 

Clearances and creepage distances comply with 
clause 13  

See appended table of CL.13.

Pass 

14.3.3.2 

Transformers meet the constructional requirements  See appended table of CL.13.

Pass 

14.3.4 

Separation between windings 

 

Pass 

14.3.4.1 

Class II transformers have adequate separation 
between hazardous live parts and accessible parts 
(double or reinforced insulation)..............................: 

See appended table of CL.13.

Pass 

 

Coil formers and partition walls > 0,4 mm  

See appended table of CL.8.8 
and 8.9. 

Pass 

14.3.4.2 

Class I transformers, with basic insulation and 
protective screening only if all 7 conditions of 
14.3.4.2 are met  

 N/A 

14.3.4.3 

Separating transformers with at least basic insulation  

N/A 

14.3.5 

Insulation between HAZARDOUS LIVE parts and 
ACCESSIBLE parts 

 Pass 

14.3.5.1 

Class II transformers have adequate insulation 
between hazardous live parts and accessible parts 
(double or reinforced insulation)  

See CL.14.3.3.2 and 
appended table of CL.8.8 and 
8.9. 

Pass 

 

Coil formers and partition walls > 0,4 mm  

See CL.14.3.4.1. 

Pass 

14.3.5.2 

Class I transformers have adequate insulation 
between hazardous live parts and accessible 
conductive parts or those conductive parts or 
protective screens connected to a protective earth 
terminal  

 N/A 

 

Winding wires connected to protective earth have 
adequate current-carrying capacity  

 N/A