{"id":217591,"date":"2025-05-22T06:35:03","date_gmt":"2025-05-22T06:35:03","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=217591"},"modified":"2025-05-22T06:35:05","modified_gmt":"2025-05-22T06:35:05","slug":"an-unspliced-__-that-is-sized-based-on-the-derived-phase-conductors-shall-be-used-to-connect-the-grounded-conductor-and-the-supply-side-bonding-jumper-or-the-equipment-grounding-conductor-or-both-a","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/22\/an-unspliced-__-that-is-sized-based-on-the-derived-phase-conductors-shall-be-used-to-connect-the-grounded-conductor-and-the-supply-side-bonding-jumper-or-the-equipment-grounding-conductor-or-both-a\/","title":{"rendered":"An unspliced __ that is sized based on the derived phase conductors shall be used to connect the grounded conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">An unspliced __ that is sized based on the derived phase conductors shall be used to connect the grounded conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">system bonding jumper<br>equipment grounding conductor<br>grounded conductor<br>grounding electrode conductor<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Correct Answer:<\/strong> <strong>system bonding jumper<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explanation:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In electrical systems, particularly <strong>separately derived systems<\/strong> (such as transformers that are isolated from the main power source), proper grounding and bonding are essential for safety, fault current return path, and system functionality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The question focuses on the conductor that connects the <strong>grounded conductor<\/strong> (commonly the neutral), the <strong>supply-side bonding jumper<\/strong>, and possibly the <strong>equipment grounding conductor<\/strong>. The key phrase in the question is: \u201c<strong>used to connect the grounded conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both<\/strong>.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This defines the <strong>system bonding jumper<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What is a System Bonding Jumper?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>system bonding jumper<\/strong> is the critical conductor that connects the grounded conductor (neutral) of a <strong>separately derived system<\/strong> to the <strong>equipment grounding conductor<\/strong> and\/or the <strong>metal parts<\/strong> of the electrical equipment. It ensures that the grounded conductor is connected to the grounding system to facilitate the clearing of ground faults by providing a low-impedance path back to the source.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to the <strong>National Electrical Code (NEC) Article 250.30(A)(1)<\/strong>, for separately derived systems:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>system bonding jumper<\/strong> must be installed at the source or the first disconnecting means.<\/li>\n\n\n\n<li>This jumper must be <strong>unspliced<\/strong> and <strong>sized based on the derived ungrounded conductors<\/strong> (phase conductors), as per NEC Table 250.66.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Other Options Explained:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Equipment Grounding Conductor (EGC):<\/strong> Connects equipment enclosures to the grounding system, but not directly responsible for bonding the grounded conductor to the grounding system.<\/li>\n\n\n\n<li><strong>Grounded Conductor:<\/strong> The neutral in a system, but it needs to be bonded to ground via a system bonding jumper.<\/li>\n\n\n\n<li><strong>Grounding Electrode Conductor (GEC):<\/strong> Connects the grounding electrode (e.g., ground rod) to the system but does not serve the bonding function described in the question.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Conclusion:<\/strong><br>In a separately derived system, the <strong>system bonding jumper<\/strong> is the correct, unspliced conductor that ensures proper connection between the <strong>grounded conductor<\/strong>, <strong>supply-side bonding jumper<\/strong>, and\/or <strong>equipment grounding conductor<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An unspliced __ that is sized based on the derived phase conductors shall be used to connect the grounded conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system. system bonding jumperequipment grounding conductorgrounded conductorgrounding electrode conductor The Correct Answer and Explanation is: Correct Answer: system bonding [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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