{"id":380848,"date":"2024-10-20T03:08:46","date_gmt":"2024-10-20T03:08:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-631122021\/"},"modified":"2024-10-26T05:41:45","modified_gmt":"2024-10-26T05:41:45","slug":"bs-en-iec-631122021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-631122021\/","title":{"rendered":"BS EN IEC 63112:2021"},"content":{"rendered":"

This document is applicable to low voltage Photovoltaic Earth-Fault Protection Equipment (PVEFPE) whose function is to detect, interrupt, and warn system operators of earth faults in solar photovoltaic arrays. NOTE 1 In the context of this document, the PV array may include connected wiring and equipment. The required coverage of the monitoring and protection is defined in PV installation codes and standards, including aspects such as whether or not the coverage is required to include battery circuits, the DC outputs of DC-DC converters, etc. NOTE 2 The IEC definition of low voltage is 1 000 V or less for AC systems and 1 500 V or less for DC systems. PV-EFPE may be stand-alone or integrated into other equipment such as PV power conversion equipment, a PV combiner, etc. This document specifies: – the types and levels of the monitoring and protection functions that may be provided; – the nature and timing of responses to earth faults; – test methods for validating the monitoring and protection functions provided; – requirements for functional safety and fault tolerance; – requirements for product safety including construction, environmental suitability, markings, documentation, and testing.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
11<\/td>\nFOREWORD <\/td>\n<\/tr>\n
13<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
14<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
15<\/td>\n3 Terms, definitions, symbols and abbreviated terms <\/td>\n<\/tr>\n
17<\/td>\n4 Requirements relating PV-EFP to system topology
4.1 General <\/td>\n<\/tr>\n
19<\/td>\nFigures
Figure 1 \u2013 Examples of functionally earthed system topologies <\/td>\n<\/tr>\n
20<\/td>\nFigure 2 \u2013 Examples of non-earth-referenced system topologies <\/td>\n<\/tr>\n
21<\/td>\n4.2 PV-EFP functions for different system topologies
Figure 3 \u2013 Examples of non-separated system topologies <\/td>\n<\/tr>\n
22<\/td>\nTables
Table 1 \u2013 PV-EFP functions based on system topology and earthing <\/td>\n<\/tr>\n
23<\/td>\n4.3 PV-EFPE control over host system operation
4.3.1 General
4.3.2 Types of PV-EFPE requiring host system control
4.3.3 Methods of control of the host system operation <\/td>\n<\/tr>\n
24<\/td>\n4.4 Disconnection under fault conditions
4.4.1 General
4.4.2 Disconnecting means
4.4.3 High impedance connections
4.4.4 Indirect disconnection <\/td>\n<\/tr>\n
25<\/td>\n4.5 Systems with more than one sub-array (informative)
4.5.1 General
4.5.2 Isolated sub-arrays
4.5.3 Non-isolated sub-arrays
5 PV array to earth insulation monitoring
5.1 General <\/td>\n<\/tr>\n
26<\/td>\n5.2 Array insulation monitoring requirements
5.3 Array insulation fault response requirements
Table 2 \u2013 Example PV array to earth insulation resistance limits <\/td>\n<\/tr>\n
27<\/td>\n5.4 Provisions for reset
5.5 Insulation monitoring function adjustability
6 PV array residual or earth current monitoring
6.1 General
6.2 Required PV-EFP current monitoring functions <\/td>\n<\/tr>\n
28<\/td>\n6.3 Shock hazard current monitoring
6.3.1 General
6.3.2 Limits and response
6.3.3 Provisions for reset
Table 3 \u2013 Shock hazard \u2013 Sudden current change limits and response times <\/td>\n<\/tr>\n
29<\/td>\n6.3.4 Shock hazard current monitoring \u2013 adjustability
6.3.5 Fault tolerance of shock hazard current monitoring
6.4 Fire hazard (continuous) current monitoring by electronic means
6.4.1 Overview
6.4.2 General
6.4.3 Settings and response
Table 4 \u2013 Example continuous current limits and response times <\/td>\n<\/tr>\n
30<\/td>\n6.4.4 Provisions for reset
6.4.5 Fire hazard current monitoring function adjustability
6.4.6 Fault tolerance of fire hazard current monitoring by electronic means
6.5 Fire hazard current monitoring by an overcurrent protective device in the functional earthing conductor
6.5.1 Overview
6.5.2 General <\/td>\n<\/tr>\n
31<\/td>\n6.5.3 Ratings
6.5.4 Response
6.5.5 Provisions for reset
6.5.6 Overcurrent protective device adjustability and replacement
Table 5 \u2013 Example trip current of overcurrent protectionin the functional earthing conductor <\/td>\n<\/tr>\n
32<\/td>\n7 Construction
7.1 General
7.2 Environmental considerations <\/td>\n<\/tr>\n
33<\/td>\n8 PV-EFP Fault Indication
8.1 General
8.2 Integral fault indication
8.3 Remote fault indication
8.3.1 General
8.3.2 Observability
8.3.3 Remote fault indication means
8.4 Resetting of the fault indication <\/td>\n<\/tr>\n
34<\/td>\n9 Testing
9.1 General requirements for the tests in 9.2 through 9.5
9.1.1 Tests required
9.1.2 DC sources <\/td>\n<\/tr>\n
35<\/td>\n9.1.3 AC sources
9.1.4 Laboratory conditions
9.1.5 Monitoring the PV-EFPE means of control of the host system
9.1.6 Control of the PV-EFPE state <\/td>\n<\/tr>\n
36<\/td>\n9.1.7 Test setup <\/td>\n<\/tr>\n
37<\/td>\n9.2 Tests for PV array insulation monitoring functions
9.2.1 Setup
Figure 4 \u2013 Example setup for PV-EFPE testing <\/td>\n<\/tr>\n
38<\/td>\n9.2.2 Sequence of tests
Figure 5 \u2013 Example setup for PV-EFPE testing of array mid-point faults <\/td>\n<\/tr>\n
39<\/td>\n9.2.3 Test for Riso above setting during system start-up
9.2.4 Test for Riso below setting during system start-up
9.2.5 Test for Riso dropping below setting during operation <\/td>\n<\/tr>\n
40<\/td>\n9.2.6 Test for short circuit earth fault during system start-up
9.2.7 Test for short circuit earth fault during operation \u2013 non-earth-referenced PV arrays <\/td>\n<\/tr>\n
41<\/td>\n9.2.8 Tests for PV array mid-point fault detection
9.2.9 24 h timer test
9.3 Tests for residual or earth current monitoring functions:
9.3.1 Setup <\/td>\n<\/tr>\n
42<\/td>\n9.3.2 Sequence of tests
9.3.3 Tests for shock hazard current monitoring <\/td>\n<\/tr>\n
44<\/td>\n9.3.4 Tests for fire hazard current monitoring by electronic means <\/td>\n<\/tr>\n
46<\/td>\n9.3.5 Fault-tolerance of shock hazard current monitoring and fire hazard current monitoring by electronic means <\/td>\n<\/tr>\n
47<\/td>\n9.3.6 Tests for fire hazard current monitoring by an overcurrent protective device in the functional earthing conductor
9.4 Test for short circuit earth fault during operation
9.4.1 General
9.4.2 Short circuit earth fault test procedure
9.4.3 Short circuit earth fault test pass\/fail criteria <\/td>\n<\/tr>\n
48<\/td>\n9.5 Tests for coordination of PV-EFP functions <\/td>\n<\/tr>\n
49<\/td>\n9.6 Product safety tests
10 Software or firmware performing safety critical functions
10.1 General
10.1.1 Overview
10.1.2 Risk analysis <\/td>\n<\/tr>\n
50<\/td>\n10.1.3 Integrated PV-EFPE
10.2 Evaluation methods
10.2.1 General
10.2.2 Testing with features disabled
10.2.3 Functional safety analysis <\/td>\n<\/tr>\n
51<\/td>\n11 Marking and documentation
11.1 Equipment markings
11.1.1 General
11.1.2 Marking content <\/td>\n<\/tr>\n
53<\/td>\n11.2 Installation and operating instructions
11.2.1 General <\/td>\n<\/tr>\n
54<\/td>\n11.2.2 General content
11.2.3 Information related to installation <\/td>\n<\/tr>\n
56<\/td>\n11.2.4 Information related to operation <\/td>\n<\/tr>\n
57<\/td>\n11.2.5 Information related to maintenance
12 Routine (production) tests
12.1 General
12.2 Routine dielectric tests
12.3 Routine EFP function tests
12.3.1 General <\/td>\n<\/tr>\n
58<\/td>\n12.3.2 Shock hazard current monitoring
12.3.3 Electronic fire hazard current monitoring
12.3.4 Residual current device test function
12.3.5 PV array insulation monitoring function <\/td>\n<\/tr>\n
59<\/td>\nAnnex A (informative)Examples of system topologies with respect to PV Earth Fault Protection
A.1 General
A.2 Functionally earthed (FE) system with FE current monitoring
Figure A.1 \u2013 Functionally earthed (FE) system with current monitoringin the FE conductor <\/td>\n<\/tr>\n
60<\/td>\nA.3 Functionally earthed (FE) system with a functionally earthed conductor fault
Figure A.2 \u2013 Functionally earthed (FE) system with a functionallyearthed conductor fault <\/td>\n<\/tr>\n
61<\/td>\nA.4 Functionally earthed (FE) system with residual current monitoring
Figure A.3 \u2013 Functionally earthed (FE) system with residual current monitoring <\/td>\n<\/tr>\n
62<\/td>\nA.5 Non-separated system with residual current monitoring on PV+\/-
Figure A.4 \u2013 Non-separated 3-phase system with residual current monitoring on PV+\/- <\/td>\n<\/tr>\n
63<\/td>\nA.6 Non-separated system with residual current monitoring on the AC side
Figure A.5 \u2013 Non-separated 1-phase system with residualcurrent monitoring on the AC side <\/td>\n<\/tr>\n
64<\/td>\nA.7 Non-earth-referenced system with continuous insulation monitoring
Figure A.6 \u2013 Non-earth-referenced system with continuous insulation monitoring <\/td>\n<\/tr>\n
65<\/td>\nAnnex B (informative)Background and rationale for PV Earth Fault Protection requirements
B.1 Purpose
B.2 PV earth faults \u2013 scope and meaning <\/td>\n<\/tr>\n
66<\/td>\nB.3 PV-EFP goals
B.4 PV-EFP challenges
B.4.1 Characteristics of PV systems that affect PV-EFP approaches <\/td>\n<\/tr>\n
68<\/td>\nB.4.2 PV-EFP \u201cblind spots\u201d and coordination of protective measures <\/td>\n<\/tr>\n
70<\/td>\nB.4.3 Relation between PV-EFP protection settings and PV system size <\/td>\n<\/tr>\n
73<\/td>\nB.5 Current and historical standards covering PV Earth Fault Protection
B.5.1 General
B.5.2 NFPA 70 \u2013 the US National Electrical Code (NEC)
B.5.3 UL1741 and related documents <\/td>\n<\/tr>\n
74<\/td>\nB.5.4 VDE 0126-1-1 <\/td>\n<\/tr>\n
75<\/td>\nB.5.5 IEC 62109-2
Table B.1 \u2013 Sudden change residual current limits <\/td>\n<\/tr>\n
76<\/td>\nB.5.6 IEC 60364-7-712
B.5.7 IEC 62548 <\/td>\n<\/tr>\n
77<\/td>\nB.5.8 Conclusions <\/td>\n<\/tr>\n
78<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Photovoltaic (PV) arrays. Earth fault protection equipment. Safety and safety-related functionality<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":380855,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-380848","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/380848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/380855"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=380848"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=380848"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=380848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}