{"id":451580,"date":"2024-10-20T09:18:46","date_gmt":"2024-10-20T09:18:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-23-30482660-dc-2023\/"},"modified":"2024-10-26T17:21:26","modified_gmt":"2024-10-26T17:21:26","slug":"bsi-23-30482660-dc-2023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-23-30482660-dc-2023\/","title":{"rendered":"BSI 23\/30482660 DC 2023"},"content":{"rendered":"

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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\n30482660-NC.pdf <\/td>\n<\/tr>\n
3<\/td>\n9_3026e_CDV.pdf <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
9<\/td>\nINTRODUCTION
1 Scope
2 Normative references <\/td>\n<\/tr>\n
10<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
15<\/td>\n4 Graphical symbols for surge arresters and VLDs <\/td>\n<\/tr>\n
16<\/td>\n5 General considerations
5.1 General <\/td>\n<\/tr>\n
17<\/td>\n5.2 Application of surge arresters
5.2.1 General
5.2.2 Insulation level of equipment to be protected
5.2.3 Internal overvoltages <\/td>\n<\/tr>\n
18<\/td>\n5.2.4 Lightning Overvoltages
5.3 Application of VLDs
5.3.1 General <\/td>\n<\/tr>\n
19<\/td>\n5.3.2 Short-term protection
5.3.3 Long-term protection <\/td>\n<\/tr>\n
20<\/td>\n5.3.4 Selection of VLD-F or VLD-O
6 Guideline for Surge Arresters
6.1 General
6.1.1 Electrical characteristics <\/td>\n<\/tr>\n
21<\/td>\n6.1.2 Housing
6.1.3 Porcelain-housed arresters
6.1.4 Polymer-housed arresters <\/td>\n<\/tr>\n
22<\/td>\n6.2 Systems and equipment to be protected by surge arresters <\/td>\n<\/tr>\n
25<\/td>\n6.3 Nominal discharge current In
6.4 Selection of Continuous Operating Voltage
6.4.1 Continuous operating voltage Uc for arresters A1 <\/td>\n<\/tr>\n
26<\/td>\n6.4.2 Continuous operating voltage Uc for arresters A2
6.5 Protective level of A1 and A2 arresters. <\/td>\n<\/tr>\n
28<\/td>\n6.6 Charge transfer capability
6.6.1 General <\/td>\n<\/tr>\n
29<\/td>\n6.6.2 Typical overvoltages during clearing a line fault
6.6.3 Arrester A1 <\/td>\n<\/tr>\n
30<\/td>\n6.6.4 Arrester A2
6.7 Procedure to select an A1 arrester <\/td>\n<\/tr>\n
34<\/td>\n6.8 Procedure to select an A2 arrester
6.9 Connecting leads of arresters
6.10 Earthing requirements <\/td>\n<\/tr>\n
35<\/td>\n7 Guideline for VLDs
7.1 Introduction <\/td>\n<\/tr>\n
36<\/td>\n7.2 General
7.3 Mass transit railways, trams and trolley busses
7.3.1 General
7.3.2 Trams, trolley busses, light rail transit and metros with OCL <\/td>\n<\/tr>\n
38<\/td>\n7.3.3 Metros with a conductor rail <\/td>\n<\/tr>\n
39<\/td>\n7.4 Railways (DC 1 500 V to DC 3 000 V)
7.4.1 General
7.4.2 Application of VLDs along the lines or at the substations, switching stations and at sectioning points
7.4.2.1 General <\/td>\n<\/tr>\n
40<\/td>\n7.4.2.2 Application of VLD-Os
7.4.2.3 Application of VLD-F <\/td>\n<\/tr>\n
41<\/td>\n7.4.3 Recommended characteristics of VLDs <\/td>\n<\/tr>\n
42<\/td>\n7.5 Workshops
7.5.1 Application of VLD-O
7.5.2 Application of VLD-F
8 Further considerations
8.1 Installation recommendations
8.1.1 Mounting aspect <\/td>\n<\/tr>\n
44<\/td>\n8.1.2 Periodicity of inspection and management of alarms
8.1.2.1 General
8.1.2.2 First installation of a VLD (of a defined Class) in the network
8.1.2.3 Periodic inspection <\/td>\n<\/tr>\n
45<\/td>\n8.1.2.4 Devices with operation and alarm recordings
8.1.2.5 Detailed review in case of major network or rail traffic modifications
8.1.3 Colours of the cables
8.2 Interaction between arresters and VLDs
8.3 Interaction with other systems
8.3.1 Interaction with signalling systems <\/td>\n<\/tr>\n
46<\/td>\n8.3.2 Interaction with earthing systems
8.3.3 Interaction with tunnel earthing systems
8.3.4 Separation of AC cable screens <\/td>\n<\/tr>\n
47<\/td>\nAnnex A (informative) Calculation example <\/td>\n<\/tr>\n
54<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

BS IEC 62848-3 Railway applications – Fixed installations – DC surge arresters and voltage limiting devices – Part 3: Guidance on application<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n54<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":451590,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-451580","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\/451580","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\/451590"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=451580"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=451580"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=451580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}