Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

-dmarc-requ...@ieee.org>> *Sent:* Tuesday, March 13, 2018 8:57 AM *To:* EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> *Subject:* Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31 Hi Vyas, I'm not familiar with this standar

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

...@woodjohn.uk] Sent: 14 March 2018 00:58 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31 I agree: SELV as a low-voltage earth-free supply is not actually a safe concept. It's OK for short connections in the same space

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

ubject:* Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31 Hi Vyas, I'm not familiar with this standard, but the general principle is that 2 levels of protection are required to protect operators from hazards. In the case of the "protective earthed acce

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

: Scott Aldous <0220f70c299a-dmarc-requ...@ieee.org<mailto:0220f70c299a-dmarc-requ...@ieee.org>> Sent: Tuesday, March 13, 2018 8:57 AM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] insulation between SELV and protective earthed accessibl

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

(or not) of SELV does not enter into this determination. Good luck and best regards, Rich *From:* Balmukund Vyas <balmukund.v...@ymllabs.com> *Sent:* Tuesday, March 13, 2018 5:56 AM *To:* EMC-PSTC@LISTSERV.IEEE.ORG *Subject:* [PSES] insulation between SELV and protective earthed accessibl

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

EE.ORG Subject: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31 Dear All, IEC 62052-31 is standard for product safety requirements for electricity metering equipment. It has a table 20 (given below) which details out insulation requirements between v

Re: [PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

Hi Vyas, I'm not familiar with this standard, but the general principle is that 2 levels of protection are required to protect operators from hazards. In the case of the "protective earthed accessible part", I imagine the standard assumes that a single fault could compromise the protective

[PSES] insulation between SELV and protective earthed accessible part- IEC 62052-31

Dear All, IEC 62052-31 is standard for product safety requirements for electricity metering equipment. It has a table 20 (given below) which details out insulation requirements between various types of circuits. My question is, why Basic insulation is required between SELV circuit and