{"id":12993,"date":"2025-11-20T14:37:25","date_gmt":"2025-11-20T11:37:25","guid":{"rendered":"https:\/\/gvd.com.tr\/kasim-25-haber-bulteni\/"},"modified":"2025-11-20T15:05:09","modified_gmt":"2025-11-20T12:05:09","slug":"november-25-newsletter","status":"publish","type":"post","link":"https:\/\/gvd.com.tr\/en\/november-25-newsletter\/","title":{"rendered":"November’25 Newsletter"},"content":{"rendered":"\t\t
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\u201cUnderstanding LV Panel Compartments\u201d\nHow Modern Low Voltage Panels Are Structured? - by GVD Engineering Team<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Every low-voltage\u00a0 panel is built like a carefully engineered building these internal divisions are called compartments, and they exist to ensure safety, maintainability, and fault containment.<\/p>

According to IEC 61439, compartments help isolate live parts and allow maintenance without shutting down the entire system.<\/p>

Let\u2019s explore the three key sections that form the backbone of every LV panel design.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1. Circuit Breaker Compartment<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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This section houses the incoming and outgoing circuit breakers, either fixed or withdrawable.<\/p>

It\u2019s the most accessible part for operation and inspection. In GVD\u2019s Premium-XW withdrawable panels, breakers are mounted on sliding chassis, allowing testing and replacement while the rest of the system remains energized. This improves uptime and worker safety.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. Busbar Compartment <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The busbar compartment carries the main current through copper or aluminum conductors. It\u2019s physically separated from other sections to contain faults and minimize thermal rise. IEC 61439 requires clearances and phase barriers to prevent flashovers.<\/p>

Always check temperature-rise test and short-circuit withstand ratings when evaluating busbar systems.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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3. Cable Compartment<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Located at the rear or bottom, this compartment handles the entry and termination of power cables.<\/p>

A good design provides enough space for bending radii and gland plates, preventing mechanical stress on cable lugs.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. The Concept of \u201cForm of Separation\u201d<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Forms of separation (Form 1 to Form 4b) classify how compartments are isolated from each other.<\/p>

  • Form 1: No separation<\/li>
  • Form 2: Busbars separated from functional units<\/li>
  • Form 3: Busbars and functional units separated<\/li>
  • Form 4b: Full separation including cables<\/li><\/ul>

    GVD panels are typically designed as Form 4b, ensuring maximum safety and maintainability for industrial use.<\/p>

    Proper compartmentalization allows safe maintenance, reduces downtime, and prevents fault propagation. For engineers, it\u2019s the foundation of good panel architecture.<\/em><\/strong><\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    Every low-voltage panel is built like a carefully engineered building these internal divisions are called compartments, and they exist to ensure safety, maintainability, and fault containment.<\/p>\n","protected":false},"author":1,"featured_media":13006,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62],"tags":[],"class_list":["post-12993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-newsletter"],"_links":{"self":[{"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/posts\/12993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/comments?post=12993"}],"version-history":[{"count":9,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/posts\/12993\/revisions"}],"predecessor-version":[{"id":13012,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/posts\/12993\/revisions\/13012"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/media\/13006"}],"wp:attachment":[{"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/media?parent=12993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/categories?post=12993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gvd.com.tr\/en\/wp-json\/wp\/v2\/tags?post=12993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}