{"id":79436,"date":"2024-10-17T18:34:24","date_gmt":"2024-10-17T18:34:24","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-946-1985\/"},"modified":"2024-10-24T19:40:07","modified_gmt":"2024-10-24T19:40:07","slug":"ieee-946-1985","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-946-1985\/","title":{"rendered":"IEEE 946 1985"},"content":{"rendered":"<p>New IEEE Standard &#8211; Inactive &#8211; Superseded. Guidance for the design of the dc auxiliary power systems for nuclear and large fossil-fueled power generating stations is provided. The components of the dc auxiliary power system, including lead storage batteries, static battery chargers, and distribution equipment, are addressed. Guidance for selecting the quantity and types of equipment, the equipment ratings, interconnections, instrumentation, control and protection is also provided.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>1 Scope <br \/> 2 Definition <br \/> 3 References  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>4.1 Description and Operation <br \/> 4.2 Number of Batteries <br \/> 4.3 Number of Chargers and Distribution Panels <br \/> 4.4 System Voltage Considerations  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>4.5 Physical Layout <br \/> 5 Batteries <br \/> 5.1 Determination of Battery Duty Cycles and Battery Size (Capacity) <br \/> 5.2 Installation Design <br \/> 5.3 Maintenance Testing and Replacement <br \/> 5.4 Qualification <br \/> 6 Battery Chargers <br \/> 6.1 General Description <br \/> 6.2 Determination of Required Rating  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>6.3 SampleCalculations <br \/> 6.4 Qualification <br \/> 6.5 Outputcharacteristics <br \/> 6.5.1 Output Ripple <br \/> 6.5.2 Operation Without a Connected Battery <br \/> 7 Distribution System and Equipment <br \/> 7.1 Description and Rating <br \/> 7.2 TypicalDiagr am <br \/> 7.3 Voltage Ratings for DC Powered Components  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>Fig 1 1:125 V Class 1E DC System Key Diagram  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>7.4 Instrumentation Controls and Alarms <br \/> 7.5 Special DC Loads <br \/> 7.5.1 Load Transfers <br \/> Table 1 Recommended Voltage Range of 125 V and 250 V DC (Nominal) Rated Components  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Fkg 2 1:125 V Class 1E DC System Instrumentation and Alarms  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>7.5.2 Current Demand Increases As Voltage Decreases <br \/> 7.5.3 SwitchingSurges <br \/> 7.6 Design Features to Assist in Battery Testing <br \/> 7.7 Cross-TieBetweenBuses <br \/> 7.8 Qualification <br \/> 7.9 AvailableShort Circuit Current <br \/> 7.9.1 Batteries <br \/> 7.9.2 Chargers <br \/> 7.9.3 Motors <br \/> 8 Spare Equipment  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>Appendix A Battery Charger Rating-Sample Calculations  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Appendix B Batteries-Available Short Circuit Current-Sample Calculations  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>Fig B3 Typical Characteristic Curve-ArnperedPositive Plate versus Ampere-Hours\/Positive Plate  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>IEEE Recommended Practice for the Design of Safety-Related DC Auxiliary Power Systems for Nuclear Power Generating Stations<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/ieee\/\"><b>IEEE<\/b><\/a><\/td>\n<td>1985<\/td>\n<td>18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":79437,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-79436","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","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\/79436","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\/79437"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=79436"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=79436"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=79436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}