AVR 370 - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 98

 

Page 12 of 15 

Report No.: 215445 

 
 

ATTACHMENT 4 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

       

TRF No. IEC60065K 

5.4.1 
(A11:2008
) 
 

Norway and Sweden  
To the end of 5.4.1 (after the compliance 
statement) the following is added:  
The screen of the cable distribution system is 
normally not earthed at the entrance of the building 
and there is normally no equipotential bonding 
system within the building. Therefore the protective 
earthing of the building installation need to be 
isolated from the screen of a cable distribution 
system.  
It is however accepted to provide the insulation 
external to the equipment by an adapter or an 
interconnection cable with galvanic isolator, which 
may be provided by e.g. a retailer.  
The user manual shall then have the following or 
similar information in Norwegian and Swedish 
language respectively, depending on in what 
country the equipment is intended to be used in:  
“Equipment connected to the protective earthing of 
the building installation through the mains 
connection or through other equipment with a 
connection to protective earthing – and to a cable 
distribution system using coaxial cable, may in 
some circumstances create a fire hazard. 
Connection to a cable distribution system has 
therefore to be provided through a device providing 
electrical isolation below a certain frequency range 
(galvanic isolator, see EN 60728-11)”  

NOTE In Norway, due to regulation for installations of cable 
distribution systems, and in Sweden, a galvanic isolator shall 
provide electrical insulation below 5 MHz. The insulation shall 
withstand a dielectric strength of 1,5 kV r.m.s., 50 Hz or 60 Hz, 
for 1 min.  

Translation to Norwegian (the Swedish text will also 
be accepted in Norway):  
“Utstyr som er koplet til beskyttelsesjord via 
nettplugg og/eller via annet jordtilkoplet utstyr – og 
er tilkoplet et kabel-TV nett, kan forårsake 
brannfare. For å unngå dette skal det ved tilkopling 
av utstyret til kabel-TV nettet installeres en 
galvanisk isolator mellom utstyret og kabel-TV 
nettet.”  
Translation to Swedish:  
”Utrustning som är kopplad till skyddsjord via jordat 
vägguttag och/eller via annan utrustning och 
samtidigt är kopplad till kabel-TV nät kan i vissa fall 
medföra risk för brand.  
Főr att undvika detta skall vid anslutning av 
utrustningen till kabel-TV nät galvanisk isolator 
finnas mellan utrustningen och kabel-TV nätet.” 

No CDS