[et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” _builder_version=”4.16″ _module_preset=”default” positioning=”none” horizontal_offset_tablet=”” horizontal_offset_phone=”” horizontal_offset_last_edited=”on|tablet” custom_margin=”0px||||false|false” custom_margin_tablet=”” custom_margin_phone=”” custom_margin_last_edited=”on|desktop” custom_padding=”0px|||0px|false|false” custom_padding_tablet=”|||25px|false|false” custom_padding_phone=”” da_disable_devices=”off|off|off” global_colors_info=”{}” custom_padding__hover_enabled=”on|desktop” theme_builder_area=”post_content” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on” custom_padding__hover=”0px|||0px|false|false”][et_pb_row _builder_version=”4.16″ _module_preset=”default” width=”100%” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n
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The first step in\u00a0determining\u00a0the criticality\u00a0score\u00a0of an asset is\u00a0to\u00a0determine\u00a0the\u00a0<\/span>likelihood<\/span><\/b>\u00a0or\u00a0<\/span>probability<\/span><\/b>\u00a0of failure. Entirely\u00a0eliminating\u00a0the possibility of failure is unrealistic; however,\u00a0utilities\u00a0can work to minimize failure,\u00a0especially for\u00a0critical assets that have high consequences of failure. There are\u00a0<\/span>four modes<\/span>\u00a0by which an asset can fail:\u00a0mortality\u00a0failure,\u00a0capacity\u00a0failure,\u00a0level of service\u00a0failure, and\u00a0financial\u00a0inefficiency.\u00a0<\/span>\u00a0<\/span><\/p>\n A variety of factors\u00a0contribute\u00a0to each of these four failure modes.\u00a0These factors can range from O&M history to customer expectations to\u00a0condition\u00a0of the asset. There is not one factor that is the most common cause of\u00a0failure,\u00a0and these factors may\u00a0impact\u00a0green and gray\u00a0assets differently. When\u00a0considering\u00a0how each asset might fail, all four\u00a0modes\u00a0need to be\u00a0explored.\u00a0Also,\u00a0consider which mode is most likely to affect\u00a0each\u00a0asset.<\/span>\u00a0<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/swefc.unm.edu\/iamf\/wp-content\/uploads\/2021\/04\/2.jpg” title_text=”2″ _builder_version=”4.16″ _module_preset=”default” border_radii=”on|25px|25px|25px|25px” locked=”off” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_image][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n To calculate the criticality of an asset,\u00a0<\/span><\/span>quantify\u00a0<\/span><\/span>the probability of failure of that asset\u00a0<\/span><\/span>and<\/span>\u00a0<\/span><\/span>assig<\/span>n<\/span>\u00a0<\/span>a\u202f<\/span><\/span>probability of failure (<\/span>PoF<\/span>) rating<\/span><\/span>.\u202fThese ratings should be based o<\/span>n<\/span>\u00a0<\/span>a\u00a0<\/span><\/span>PoF<\/span>\u00a0<\/span><\/span>rating structure created by\u00a0<\/span><\/span>utility<\/span>\u00a0<\/span>staff. Each failure rating in the structure should have a general description of\u00a0<\/span><\/span>likelihood<\/span>\u00a0<\/span>of occurrence. It is important to create these rating systems so all staff members can rate the probability of failure of a given asset similarly. The ratings should not be compared to other systems; this is meant as an internal tool only. The goal is for a\u00a0<\/span><\/span>utility<\/span>\u00a0<\/span>to\u00a0<\/span><\/span>determine<\/span>\u00a0<\/span>which of their assets are more likely to fail than other assets in their system.<\/span><\/span>\u00a0<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Probability of Failure The first step in\u00a0determining\u00a0the criticality\u00a0score\u00a0of an asset is\u00a0to\u00a0determine\u00a0the\u00a0likelihood\u00a0or\u00a0probability\u00a0of failure. Entirely\u00a0eliminating\u00a0the possibility of failure is unrealistic; however,\u00a0utilities\u00a0can work to minimize failure,\u00a0especially for\u00a0critical assets that have high consequences of failure. There are\u00a0four modes\u00a0by which an asset can fail:\u00a0mortality\u00a0failure,\u00a0capacity\u00a0failure,\u00a0level of service\u00a0failure, and\u00a0financial\u00a0inefficiency.\u00a0\u00a0 A variety of factors\u00a0contribute\u00a0to each of these four failure modes.\u00a0These factors can range from O&M history to customer expectations to\u00a0condition\u00a0of the asset. There is not one factor that is the most common cause of\u00a0failure,\u00a0and these factors may\u00a0impact\u00a0green and gray\u00a0assets differently. When\u00a0considering\u00a0how each asset might fail, all four\u00a0modes\u00a0need to be\u00a0explored.\u00a0Also,\u00a0consider which mode is most likely to affect\u00a0each\u00a0asset.\u00a0To calculate the criticality of an asset,\u00a0quantify\u00a0the probability of failure of that asset\u00a0and\u00a0assign\u00a0a\u202fprobability of failure (PoF) rating.\u202fThese ratings should be based on\u00a0a\u00a0PoF\u00a0rating structure created by\u00a0utility\u00a0staff. Each failure rating in the structure should have a general description of\u00a0likelihood\u00a0of occurrence. It is important to create these rating systems so all staff members can rate the probability of failure of a given asset similarly. The ratings should not be compared to other systems; this is meant as an internal tool only. The goal is for a\u00a0utility\u00a0to\u00a0determine\u00a0which of their assets are more likely to fail than other assets in their system.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-2817","page","type-page","status-publish","hentry"],"yoast_head":"\n