There is no definition of PELV because the definition of 'SELV circuit'
does not prohibit a connection to earth, as other definitions of SELV
do. Also see Note 2:
NOTE 2 This definition of an SELV CIRCUIT differs from the term "SELV
system" as used in IEC 61140.
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2017-11-23 04:49, Boštjan Glavič wrote:
Hi Piotr,
I agree with Rich.
According to specification, output also complies with LPS (Limited Power
Source) therefore output must be SELV.
There is no PELV definition in IEC 60950-1.
About table 5B or 5C, which table you will use does not depend on output from your
power supply but on mains voltage (main network system). For normal application we
are using STAR system with 230V L to N voltage with OVC II --> you can use
table 5B.
Table 5C is used for OVC III applications.
I hope this helps.
Best regards,
Bostjan
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