{"id":5414,"date":"2025-04-08T11:30:38","date_gmt":"2025-04-08T04:30:38","guid":{"rendered":"https:\/\/ktgindustrial.com\/?post_type=new&#038;p=5414"},"modified":"2026-01-12T10:12:23","modified_gmt":"2026-01-12T03:12:23","slug":"electrical-codes-for-industrial-facilities","status":"publish","type":"new","link":"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/","title":{"rendered":"Vietnam factory electrical design standards"},"content":{"rendered":"<p>Factory electrical design is more than just a technical task \u2014 it&#8217;s the foundation for safe, efficient, and sustainable operations. Join <span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/ktgindustrial.com\/\" target=\"_blank\" rel=\"noopener\">KTG Industrial<\/a><\/strong><\/span> as we explore the most up-to-date standards in factory electrical design to maximize performance and minimize risks from day one.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_72 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Electrical_design_standards_for_factories\" title=\"Electrical design standards for factories\">Electrical design standards for factories<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Electrical_safety_engineering_standards\" title=\"Electrical safety engineering standards\">Electrical safety engineering standards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Some_Standards_for_Installing_Electrical_Cabinets_in_Factories\" title=\"Some Standards for Installing Electrical Cabinets in Factories\">Some Standards for Installing Electrical Cabinets in Factories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Cable_Tray_Installation_Standards\" title=\"Cable Tray Installation Standards\">Cable Tray Installation Standards<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#6_Steps_to_Designing_a_Standard-Compliant_Factory_Electrical_System\" title=\"6 Steps to Designing a Standard-Compliant Factory Electrical System\">6 Steps to Designing a Standard-Compliant Factory Electrical System<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_1_Accurately_Determine_the_Calculated_Load\" title=\"Step 1: Accurately Determine the Calculated Load\">Step 1: Accurately Determine the Calculated Load<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_2_Layout_of_the_High-Voltage_Power_Network_for_Factories\" title=\"Step 2: Layout of the High-Voltage Power Network for Factories\">Step 2: Layout of the High-Voltage Power Network for Factories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_3_Layout_of_the_Low-Voltage_Power_Network_for_Factories\" title=\"Step 3: Layout of the Low-Voltage Power Network for Factories\">Step 3: Layout of the Low-Voltage Power Network for Factories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_4_Designing_the_Lighting_System\" title=\"Step 4: Designing the Lighting System\">Step 4: Designing the Lighting System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_5_Power_Factor_Correction_Design\" title=\"Step 5: Power Factor Correction Design\">Step 5: Power Factor Correction Design<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Step_6_Testing_and_Commissioning_the_Electrical_System_After_Installation\" title=\"Step 6: Testing and Commissioning the Electrical System After Installation\">Step 6: Testing and Commissioning the Electrical System After Installation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#KTG_Industrial_%E2%80%93_Industrial_Real_Estate_Solutions_with_a_Safe_and_Standardized_Electrical_System\" title=\"KTG Industrial \u2013 Industrial Real Estate Solutions with a Safe and Standardized Electrical System\">KTG Industrial \u2013 Industrial Real Estate Solutions with a Safe and Standardized Electrical System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ktgindustrial.com\/new\/electrical-codes-for-industrial-facilities\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Electrical_design_standards_for_factories\"><\/span>Electrical design standards for factories<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The design standards of an industrial facility play a critical role in determining whether your factory will operate smoothly over the next 5, 10, or even 20 years.<\/p>\n<p>To avoid costly operational risks down the line, make sure you understand and apply the following essential standards:<\/p>\n<ul>\n<li><strong>QCVN 12:2014 \u2013<\/strong> National Technical Regulation on Electrical Installations of Dwelling and Public Buildings<\/li>\n<li><strong>QCVN QT\u0110-08:2010\/BCT \u2013<\/strong> National Technical Regulation on Low Voltage Electricity<\/li>\n<li><strong>TCVN 8241-4-2: 2009 \u2013<\/strong> This standard is crucial for electrical and electronic equipment operating in environments with a high risk of electrostatic discharge (ESD).<\/li>\n<li><strong>TCVN 5699-1: 2010 \u2013<\/strong> This standard defines the safety protection levels for equipment against electrical, mechanical, thermal, fire, and radiation hazards during normal use as instructed by the manufacturer. It also takes into account potential abnormal conditions and the impact of electromagnetic fields on equipment safety.<\/li>\n<li><strong>TCVN 7922: 2008 \u2013<\/strong> Ensure that the lighting system meets standards to enhance work efficiency.<\/li>\n<li><strong>TCVN 3715: 82 \u2013<\/strong> Design standards for electrical transmission lines and substations in industrial facilities<\/li>\n<li><strong>TCXDVN 319: 2004 \u2013<\/strong> Grounding system installation guide to ensure operational safety.<\/li>\n<li><strong>11 TCN 18: 2006 \u2013<\/strong> Regulations on power grid systems and electrical equipment within manufacturing facilities.<\/li>\n<li><strong>TCVN 9206:2012 \u2013<\/strong> Installation of electric equipment in dwellings and public buildings &#8211; design standard.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Electrical_safety_engineering_standards\"><\/span>Electrical safety engineering standards<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The electrical system in factories must comply with electrical safety technical standards as stipulated in the National Technical Regulation QCVN QTD 8:2010\/BCT, issued under Circular 04\/2011\/TT-BCT \u2013 the National Technical Regulation on Electrical Engineering by Bo Cong Thuong.<\/p>\n<p>The requirements in this regulation aim to ensure labor and asset safety while minimizing potential hazards during electricity usage in factories.<\/p>\n<div id=\"attachment_5417\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-5417\" class=\"wp-image-5417 size-full\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-3.jpg\" alt=\"Electrical system\" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-3.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-3-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-3-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-3-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5417\" class=\"wp-caption-text\">The factory electrical system must strictly comply with QCVN.<\/p><\/div>\n<p>Below are the key standards that help investors assess and implement the factory electrical system accurately from the start:<\/p>\n<table>\n<tbody>\n<tr>\n<td>Standard<\/td>\n<td>Description<\/td>\n<\/tr>\n<tr>\n<td>Protection against thermal effects<\/td>\n<td>The electrical system must eliminate the risk of fire caused by excessive heat or sparks and ensure that electrical equipment does not cause burns to humans.<\/td>\n<\/tr>\n<tr>\n<td>Protection against fault currents<\/td>\n<td>Conductors and other components carrying fault currents must have sufficient capacity to withstand such currents without reaching excessively high temperatures.<\/td>\n<\/tr>\n<tr>\n<td>Protection against overcurrent<\/td>\n<td>Ensures the safety of people and property by preventing hazards caused by excessive temperature rise or mechanical forces generated by overcurrent.<\/td>\n<\/tr>\n<tr>\n<td>Protection against overvoltage<\/td>\n<td>Prevents harmful consequences due to insulation failure between live parts of circuits with different voltages or overvoltage caused by other factors.<\/td>\n<\/tr>\n<tr>\n<td>Protection against electric shock<\/td>\n<td>Ensure safety by preventing direct contact with live parts and indirect contact with exposed conductive parts in case of insulation failure, reducing the risk of electric leakage.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Some_Standards_for_Installing_Electrical_Cabinets_in_Factories\"><\/span>Some Standards for Installing Electrical Cabinets in Factories<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Factory electrical cabinets are not only the central hub for control devices but also serve to protect the electrical system from risks such as overload, short circuits, or electrical fires. Below are key standards that must be followed when installing electrical cabinets in factories:<\/p>\n<table>\n<tbody>\n<tr>\n<td>Category<\/td>\n<td>Technical Requirements<\/td>\n<\/tr>\n<tr>\n<td>Material<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Low-voltage electrical cabinets must have one or two layers of doors.<\/li>\n<li aria-level=\"1\">Made of stainless steel (Inox 304 or 316) to ensure high durability corrosion resistance, and withstand harsh environments.<\/li>\n<li aria-level=\"1\">The cabinet surface is coated with electrostatic paint to enhance insulation, minimize electric leakage risks, and protect internal components.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Power Supply<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">The electrical cabinet must operate on an AC power supply with two options: single-phase (220VAC) or three-phase (380VAC).<\/li>\n<li aria-level=\"1\">The rated current ranges from 10A to 6300A, depending on the system scale.<\/li>\n<li aria-level=\"1\">Breaking capacity must be between 5kA and 100kA to ensure system safety in case of overcurrent or short circuit.<\/li>\n<li aria-level=\"1\">The cabinet must function stably within the standard frequency range of 50\/60Hz.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Electrical Cabinet Installation Standards<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Circuit breakers and switching devices inside the cabinet must comply with TCVN 6592-2:2009 (IEC 60947-2:2009).<\/li>\n<li aria-level=\"1\">The cabinet must be designed with an internal arc fault protection system according to IEC 61641, including flame-retardant materials, arc fault venting channels, and warning systems to reduce risks and ensure operator safety.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Electrical cabinet Dimensions<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Typical industrial electrical cabinet dimensions:<\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\">Height: 1 \u2013 2m<\/li>\n<li aria-level=\"1\">Width: 0.5 \u2013 1.8m<\/li>\n<li aria-level=\"1\">Depth: 0.3 \u2013 0.8m<\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\">The cabinet size may vary depending on equipment capacity and technical requirements.<br \/>\nSome cabinets require additional space for future equipment expansion.<\/li>\n<li aria-level=\"1\">For outdoor electrical cabinets, a heat dissipation or ventilation system is necessary to prevent overheating, which could reduce the lifespan of internal components.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div id=\"attachment_5420\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-5420\" class=\"wp-image-5420 size-full\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-6.jpg\" alt=\"Electrical cabinets in the factory\" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-6.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-6-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-6-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-6-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5420\" class=\"wp-caption-text\">Electrical cabinets serve as the control and protection center of the power system and must be installed according to technical standards to ensure safety.<\/p><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Cable_Tray_Installation_Standards\"><\/span>Cable Tray Installation Standards<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cable trays provide structured support for electrical wiring in factories, ensuring organization and protection. To maintain safety, every detail\u2014from support spacing and material thickness to load capacity\u2014must strictly comply with standards, preventing overheating, collapse, or electrical hazards.<\/p>\n<p>Below are the essential standards to ensure safety and stable operation in industrial settings:<\/p>\n<table>\n<tbody>\n<tr>\n<td>Category<\/td>\n<td>Technical Requirements<\/td>\n<\/tr>\n<tr>\n<td>Materials<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Common materials for cable trays and ladders include hot-dip galvanized steel, stainless steel 304, stainless steel 316, and aluminum.<\/li>\n<li aria-level=\"1\">Hot-dip galvanized steel is often used for outdoor environments due to its excellent rust resistance.<\/li>\n<li aria-level=\"1\">Stainless steel 304 and 316 offer high durability, with stainless steel 316 being particularly suitable for environments with corrosive chemicals or high humidity, such as food processing, pharmaceuticals, and chemical plants.<\/li>\n<li aria-level=\"1\">Aluminum is lightweight and easy to install, making it ideal for systems that require frequent relocation or maintenance.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Distance Between Supports<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Cable tray systems must be securely fastened, with support spacing determined by cable load capacity.<\/li>\n<li aria-level=\"1\">If the distance is too great, trays may sag, break, or deform, posing operational hazards.<\/li>\n<li aria-level=\"1\">Standard spacing typically ranges from 1.2m to 2m, with shorter distances required in areas with heavy loads or strong vibrations to ensure durability.<\/li>\n<li aria-level=\"1\"><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Cable Tray Thickness<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">The thickness of cable trays affects their load-bearing capacity and resistance to deformation. Typically, thickness varies from 1 mm to 2.5mm, specifically:<\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\">1 &#8211; 1.5mm: For lightweight systems.<\/li>\n<li aria-level=\"1\">2 &#8211; 2.5mm: For heavy-load systems or harsh industrial environments.<\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\">If the system is installed at a high elevation or in areas with strong winds, thicker trays or additional reinforcement bars should be used to enhance stability.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Load Capacity<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">Standard support spacing is 1.2m &#8211; 2m, but may be reduced for heavier loads.<\/li>\n<li aria-level=\"1\">The load capacity of cable trays must ensure long-term structural integrity. Proper calculations should be made to support the maximum cable weight while preventing stress on walls, ceilings, or support structures.<\/li>\n<li aria-level=\"1\">For excessive loads, double supports or reinforced steel frames can be used for added strength.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>Cable Tray Bending Radius<\/td>\n<td>\n<ul>\n<li aria-level=\"1\">When designing curved sections or directional changes in cable tray systems, the bending radius must prevent cable damage, such as fractures, breaks, or insulation wear.<\/li>\n<\/ul>\n<p>According to standards:<\/p>\n<ul>\n<li aria-level=\"1\">If the outer cable diameter is less than 100mm, the minimum bending radius should be R \u2265 400mm.<\/li>\n<li aria-level=\"1\">If the outer diameter is 100mm &lt; D &lt; 160mm, the minimum bending radius should be R \u2265 600mm.<\/li>\n<\/ul>\n<p>For systems with multiple parallel cables, flexible joints should be used to minimize mechanical stress on the cables.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"6_Steps_to_Designing_a_Standard-Compliant_Factory_Electrical_System\"><\/span>6 Steps to Designing a Standard-Compliant Factory Electrical System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Step_1_Accurately_Determine_the_Calculated_Load\"><\/span>Step 1: Accurately Determine the Calculated Load<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The first step in designing a factory electrical system is precisely determining the required power consumption (calculated load). An incorrect assessment can lead to risks such as system overload, causing short circuits and fires, or excessive capacity, leading to energy waste.<\/p>\n<p>For example, a production facility with high-power machinery requires careful calculations to select a sufficiently strong transformer, preventing voltage drops when multiple machines operate simultaneously.<\/p>\n<p>When calculating the electrical load for a factory system, it is essential to consider the safety factor to ensure stable operation and avoid overloading or insufficient capacity. The safety factor typically ranges from 1.2 to 1.3, depending on the type of equipment used and potential future expansions. Proper capacity planning not only ensures system durability but also optimizes investment and operational costs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_2_Layout_of_the_High-Voltage_Power_Network_for_Factories\"><\/span>Step 2: Layout of the High-Voltage Power Network for Factories<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The high-voltage power network (\u2265 35kV) serves as the main transmission line, delivering electricity from the national grid to the factory via substations. High voltage reduces energy loss over long distances and is ideal for factories with high power consumption. Due to its hazardous nature and strict technical requirements, the voltage level should be selected based on the production scale:<\/p>\n<ul>\n<li aria-level=\"1\">Small to medium-sized factories typically use 22kV or 35kV.<\/li>\n<li aria-level=\"1\">Large industrial zones may require 110kV \u2013 220kV<\/li>\n<\/ul>\n<p>Depending on the terrain and operational needs, businesses can choose between prestressed concrete poles, steel towers, or wooden poles for power transmission. For wide-area coverage, concrete poles or steel towers are preferred for durability. In urban areas or locations where overhead lines pose safety risks, underground cables should be used.<\/p>\n<p>For example, a large industrial zone typically utilizes concrete poles or steel towers for high durability and load-bearing capacity. In contrast, smaller factories may only require a low-voltage line from the local grid.<\/p>\n<div id=\"attachment_5418\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-5418\" class=\"wp-image-5418 size-full\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-4.jpg\" alt=\"High-voltage poles \" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-4.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-4-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-4-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-4-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5418\" class=\"wp-caption-text\">High-voltage poles are commonly used in industrial zones to ensure stable and safe power transmission.<\/p><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Step_3_Layout_of_the_Low-Voltage_Power_Network_for_Factories\"><\/span>Step 3: Layout of the Low-Voltage Power Network for Factories<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Once the voltage is stepped down to a safe level through the substation, the low-voltage power network (\u2264 380V) distributes electricity to different production areas. This system supplies power to production units, lighting systems, and office spaces, typically operating at 220V &#8211; 380V. Since this voltage directly affects both equipment and personnel, several key principles must be followed when designing the low-voltage network:<\/p>\n<ul>\n<li aria-level=\"1\">Select appropriate wiring: Wires that are too small can overheat, posing safety risks, while oversized wires lead to unnecessary costs.<\/li>\n<li aria-level=\"1\">Strategic placement of control panels: Electrical panels should be positioned for easy operation and kept away from fire-prone areas. For example, in a mechanical workshop, panels are typically installed in dry areas, away from metalworking zones, to prevent sparks from causing accidents.<\/li>\n<li aria-level=\"1\">Ensure a proper grounding system: Grounding reduces the risk of electric shocks, which is especially important in factories with heavy machinery made of conductive metals.<\/li>\n<\/ul>\n<div id=\"attachment_5419\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5419\" class=\"size-full wp-image-5419\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-5.jpg\" alt=\"Low voltage electric poles\" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-5.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-5-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-5-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-5-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5419\" class=\"wp-caption-text\">The low-voltage power network in factories must strictly adhere to safety principles.<\/p><\/div>\n<p>When designing, the location of the control panels must be carefully calculated to ensure convenience for operation and maintenance while also ensuring proper distribution of electricity.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_4_Designing_the_Lighting_System\"><\/span>Step 4: Designing the Lighting System<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lighting is more than just installing fixtures\u2014it\u2019s about optimizing efficiency and energy savings. According to TCVN 7922:2008, factory lighting systems must provide adequate illumination to ensure a safe and productive work environment.<\/p>\n<p>Today, LED lights are gradually replacing traditional lighting due to their energy efficiency, long lifespan (up to 50,000 hours), low heat emission, and stable brightness.<\/p>\n<p>A well-planned lighting system must be carefully calculated to meet operational needs while maximizing energy efficiency. To achieve optimal results, businesses should:<\/p>\n<ul>\n<li aria-level=\"1\">Determine lighting requirements for each area: For example, electronic assembly zones require bright white light to enhance the visibility of small details, whereas storage areas need only moderate lighting.<\/li>\n<li aria-level=\"1\">Select appropriate lighting types: LED lights are preferred over traditional fluorescent bulbs due to their superior energy savings.<\/li>\n<\/ul>\n<div id=\"attachment_5415\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5415\" class=\"wp-image-5415 size-full\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-1.jpg\" alt=\"The factory lighting system\" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-1.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-1-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-1-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-1-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5415\" class=\"wp-caption-text\">The factory lighting system must be designed in accordance with the TCVN 7922:2008 standard.<\/p><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Step_5_Power_Factor_Correction_Design\"><\/span>Step 5: Power Factor Correction Design<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The power factor correction system not only helps stabilize voltage but also reduces energy loss, optimizing the distribution and use of electricity within the factory.<\/p>\n<p>This is especially important for businesses that use many electric motors, welding machines, and air compressors, as reactive power compensation is a crucial solution to prevent overload, reduce electricity bills, and meet grid operation standards.<\/p>\n<p>The power factor correction design process includes:<\/p>\n<ul>\n<li aria-level=\"1\">Calculating the reactive power compensation needs: Reactive power is the portion of power that does not perform useful work but still exists in the electrical system due to the characteristics of inductive loads such as electric motors, transformers, and fluorescent lights with ballasts. If not properly compensated, it can cause voltage drops and reduce energy efficiency. It\u2019s important to determine the compensation level required to select the appropriate equipment.<\/li>\n<li aria-level=\"1\">Choosing the right capacitor bank: Capacitors can be placed either centrally at the substation or distributed across areas with high-power equipment. After calculating the compensation power, businesses need to select the most effective compensation method. Common methods include centralized compensation, group compensation, and direct compensation at the load.<br \/>\nFor example, a mechanical workshop with many powerful motors may require capacitors placed directly at the machines to increase efficiency.<\/li>\n<li aria-level=\"1\">Proper placement: Capacitors should be installed in well-ventilated areas, away from high temperatures, high humidity, or excessive vibrations, to ensure longevity and performance.<\/li>\n<\/ul>\n<div id=\"attachment_5416\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5416\" class=\"size-full wp-image-5416\" src=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-2.jpg\" alt=\"The capacitor is properly placed\" width=\"800\" height=\"800\" srcset=\"https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-2.jpg 800w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-2-300x300.jpg 300w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-2-150x150.jpg 150w, https:\/\/ktgindustrial.com\/wp-content\/uploads\/2025\/04\/electrical-codes-for-industrial-facilities-2-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-5416\" class=\"wp-caption-text\">Proper placement of power factor correction capacitors helps optimize the power factor and reduce electricity costs.<\/p><\/div>\n<p>If the power factor correction system is designed effectively, businesses can not only significantly reduce energy consumption but also enhance the durability of equipment, ensuring the electrical system operates at its optimal performance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_6_Testing_and_Commissioning_the_Electrical_System_After_Installation\"><\/span>Step 6: Testing and Commissioning the Electrical System After Installation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>At this stage, it is essential to conduct tests to ensure the electrical system operates stably, with no hidden risks of fire, explosion, or short circuits, while also meeting all technical standards and legal regulations before being put into operation.<\/p>\n<p>The testing process includes:<\/p>\n<ul>\n<li aria-level=\"1\">Measuring insulation resistance.<\/li>\n<li aria-level=\"1\">Verifying the operation of protective devices.<\/li>\n<li aria-level=\"1\">Testing the grounding system.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"KTG_Industrial_%E2%80%93_Industrial_Real_Estate_Solutions_with_a_Safe_and_Standardized_Electrical_System\"><\/span>KTG Industrial \u2013 Industrial Real Estate Solutions with a Safe and Standardized Electrical System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A high-quality factory is more than just a place to house machinery\u2014it serves as the foundation for efficient operations, risk reduction, and cost optimization. At KTG Industrial, we understand that every minute of downtime impacts your profitability.<\/p>\n<p>That&#8217;s why our electrical system is designed to meet international standards, ensuring a stable and safe power supply. Our automatic fire prevention and suppression system minimizes risks, while our rooftop solar power system not only reduces costs but also supports sustainable development. Additionally, our scientifically arranged electrical cabinets and cable trays optimize space, allowing businesses to focus on production without disruptions.<\/p>\n<p>Choosing KTG Industrial means investing in more than just a factory\u2014it\u2019s a commitment to a safe, modern, and cost-effective manufacturing environment.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A well-designed factory electrical system not only optimizes operations but also ensures long-term safety for businesses. We hope this article provides valuable insights as you build and expand your production space.<\/p>\n","protected":false},"author":5,"featured_media":5421,"template":"","class_list":["post-5414","new","type-new","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v24.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vietnam factory electrical design standards<\/title>\n<meta name=\"description\" content=\"Standard-compliant electrical design ensures safety, cost-efficiency, and risk reduction in industrial facilities. 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