{"id":4259,"date":"2026-11-02T08:00:00","date_gmt":"2026-11-02T08:00:00","guid":{"rendered":"https:\/\/onpowbutton.com\/news\/push-button-cti-pti-material-report\/"},"modified":"2026-11-01T04:39:10","modified_gmt":"2026-11-01T04:39:10","slug":"push-button-cti-pti-material-report","status":"publish","type":"post","link":"https:\/\/onpowbutton.com\/ar\/news\/push-button-cti-pti-material-report\/","title":{"rendered":"Push Button CTI and PTI Reports: Insulating Material Evidence"},"content":{"rendered":"<style>.onpow-article{font-size:17px;line-height:1.75;overflow-wrap:anywhere}.onpow-article img{max-width:100%;height:auto}.onpow-article figure{margin:28px 0}.onpow-article figcaption{font-size:14px;color:#555}.onpow-table-scroll{max-width:100%;overflow-x:auto}.onpow-article table{border-collapse:collapse;min-width:640px;width:100%}.onpow-article th,.onpow-article td{padding:12px;border:1px solid #ddd;text-align:left}.onpow-article th{background:#f1f4f7}.onpow-video{position:relative;aspect-ratio:16\/9;width:100%}.onpow-video iframe{position:absolute;width:100%;height:100%;border:0}<\/style>\n<article class=\"onpow-article\">\n<nav aria-label=\"Contents\"><strong>Contents<\/strong><\/p>\n<ul>\n<li><a href=\"#section-1\">What is electrical tracking on an insulating surface?<\/a><\/li>\n<li><a href=\"#section-2\">CTI and PTI serve different review purposes<\/a><\/li>\n<li><a href=\"#section-3\">Start with the exact insulating part<\/a><\/li>\n<li><a href=\"#section-4\">Review specimen preparation and surface condition<\/a><\/li>\n<li><a href=\"#section-5\">A practical evidence comparison table<\/a><\/li>\n<li><a href=\"#section-6\">Why CTI is not a working-voltage rating<\/a><\/li>\n<li><a href=\"#section-7\">Connect the report to change control<\/a><\/li>\n<li><a href=\"#section-8\">Worked example: a plausible number with missing identity<\/a><\/li>\n<li><a href=\"#section-9\">Build a clear enquiry and acceptance record<\/a><\/li>\n<li><a href=\"#section-10\">Frequently asked questions<\/a><\/li>\n<\/ul>\n<\/nav>\n<p>A push button CTI or PTI report should identify the insulating material, the tested specimen and the method used. CTI compares resistance to surface tracking under specified laboratory conditions; PTI can support acceptance at a stated proof level. Neither result alone establishes a safe operating voltage, a complete switch certification or the creepage distance required inside a control panel. For procurement, the important task is connecting the material evidence to the exact molded part and ordered button configuration, then letting the equipment designer assess the complete insulation system.<\/p>\n<h2 id=\"section-1\">What is electrical tracking on an insulating surface?<\/h2>\n<p>An electrical insulator is intended to restrict unwanted current flow, but its surface can behave differently from its clean bulk material. Under particular electrical and contamination conditions, a conductive path may develop along that surface. Tracking evaluation addresses this type of surface behavior. It does not simply measure the resistance between terminals on a clean, finished switch.<\/p>\n<p>That distinction explains why several reports can exist for the same assembly without being interchangeable. An insulation-resistance result, a dielectric-withstand result and a tracking-index result answer different questions. The first two concern electrical checks under their stated conditions; tracking evidence concerns the tested material surface and its response to the specified tracking method. Keep their names and acceptance decisions separate in the purchasing file.<\/p>\n<p>For introductory background, the educational video below explains conductors and insulators. It is useful for understanding why an unintended conductive path matters, but it does not reproduce the tracking method or establish a material index for any ONPOW product.<\/p>\n<h2 id=\"section-2\">CTI and PTI serve different review purposes<\/h2>\n<p>The official <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/108139\" rel=\"noopener\" target=\"_blank\">IEC 60112 method description<\/a> distinguishes material comparison from proof acceptance. In practical purchasing terms, CTI is useful when comparing the stated tracking behavior of materials, whereas PTI can be part of an agreed acceptance or quality-control requirement. The report must say which result it provides. Do not translate a statement of proof acceptance into an unreported comparative value.<\/p>\n<p>Ask for the actual method edition and specimen record rather than an isolated index copied into an email. An index without material identity or test context is hard to connect to a physical part. Where the supplier provides a resin manufacturer&#8217;s data sheet, label it as material-level evidence. Whether it represents the fabricated part requires a documented relationship, not simply a matching color or generic polymer name.<\/p>\n<p>For another authoritative overview, <a href=\"https:\/\/www.ul.com\/services\/comparative-tracking-index-cti-iec-60112\" rel=\"noopener\" target=\"_blank\">UL Solutions describes CTI evaluation to IEC 60112<\/a>. Use that explanation to understand the test category. A laboratory service page is not evidence that the switch being purchased has undergone that service or received a particular classification.<\/p>\n<figure><img decoding=\"async\" alt=\"LAS1GQ push button beside a magnifier and a separate insulating sample\" height=\"1024\" loading=\"lazy\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-body1-daily20261101.png\" width=\"1536\"\/><figcaption>Product-referenced illustration for an engineering review. Separate props do not show an approved test setup, measured performance or product certification.<\/figcaption><\/figure>\n<h2 id=\"section-3\">Start with the exact insulating part<\/h2>\n<p>A panel button contains several visible and potentially hidden construction elements. The <a href=\"https:\/\/onpowbutton.com\/19mmstainless-steelring-ledscrew-terminal-product\/\">ONPOW LAS1GQ ring-LED screw-terminal product<\/a> illustrates a metal front assembly with a rear connection region. Its photograph helps identify the ordered style. It cannot identify the chemistry, grade or tracking behavior of every internal insulating part.<\/p>\n<p>Request a drawing or controlled part reference that connects the report to the relevant molded component. A complete assembly code alone may be insufficient when a material report concerns one of several internal parts. Ask the manufacturer which part is represented and how the material designation in the report relates to its production documentation. Respect confidential material information while still requiring a clear and reviewable scope statement.<\/p>\n<p>Do not assume an external metal housing removes the need to assess insulation. Equally, do not infer that a black rear housing has poor or good tracking behavior from its appearance. The evidence needs to follow the construction and material specification, with unsupported assumptions excluded from the approval record.<\/p>\n<h2 id=\"section-4\">Review specimen preparation and surface condition<\/h2>\n<p>Read whether the specimen was a material plaque, a piece taken from a fabricated part or another documented sample form permitted by the method. Shape, preparation and surface condition matter to interpretation. A test on a separately produced plaque can characterize its material without automatically describing every surface produced in an assembled component.<\/p>\n<p>The material designation should be specific enough to identify the grade and any represented options. If an enquiry involves a different color, filler package or formulation, ask for the supplier&#8217;s explanation of coverage rather than assuming equivalent behavior. The goal is traceability: the reviewer should be able to follow the supplied evidence to the approved construction without guessing which version was tested.<\/p>\n<p>Retain the report&#8217;s conditioning information and any preparation limitations. Do not clean, polish, coat or otherwise alter a specimen independently and expect a previously reported result to describe the new surface. Changes should be assessed through the applicable method and the manufacturer&#8217;s controlled documentation.<\/p>\n<h2 id=\"section-5\">A practical evidence comparison table<\/h2>\n<p>This table is a document-review aid based on the distinction between material characterization and assembly assessment. It does not assign any CTI group, proof level or clearance requirement to an ONPOW item.<\/p>\n<div class=\"onpow-table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Document offered<\/th>\n<th>What it can help establish<\/th>\n<th>What still needs confirmation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Resin-grade data sheet<\/td>\n<td>The declared properties of the identified material grade<\/td>\n<td>Its relationship to the molded part and ordered configuration<\/td>\n<\/tr>\n<tr>\n<td>CTI laboratory report<\/td>\n<td>Comparative tracking behavior of the tested material and surface<\/td>\n<td>Whether specimen identity and preparation represent the relevant part<\/td>\n<\/tr>\n<tr>\n<td>PTI acceptance record<\/td>\n<td>Satisfaction of the stated proof requirement under the recorded method<\/td>\n<td>That the proof level is the one required by the purchase specification<\/td>\n<\/tr>\n<tr>\n<td>Finished-switch electrical test<\/td>\n<td>The electrical result actually measured on that assembly<\/td>\n<td>Tracking evidence if the test did not address it<\/td>\n<\/tr>\n<tr>\n<td>Equipment design assessment<\/td>\n<td>How insulation evidence is applied to the actual system<\/td>\n<td>Continued agreement with production materials and construction changes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<figure><img decoding=\"async\" alt=\"LAS1GQ complete push button beside a blank document folder\" height=\"1024\" loading=\"lazy\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-body2-daily20261101.png\" width=\"1536\"\/><figcaption>Product-referenced illustration for an engineering review. Separate props do not show an approved test setup, measured performance or product certification.<\/figcaption><\/figure>\n<h2 id=\"section-6\">Why CTI is not a working-voltage rating<\/h2>\n<p>An index expressed with voltage-related terms can easily be mistaken for a permission to operate an assembled switch at that value. That is the wrong inference. The material test applies controlled stresses to a specimen for a specific purpose. A complete electrical assembly also depends on geometry, circuit conditions, environment and the requirements that apply to the equipment.<\/p>\n<p>The equipment designer must use the appropriate insulation-coordination rules and actual construction information. CTI does not provide a standalone shortcut from a material number to a safe spacing. Do not calculate an allowable operating voltage or reduce a panel spacing using this article. Ask the responsible engineer to document the applicable requirements and how the material evidence enters that assessment.<\/p>\n<p>This also prevents confusion with <a href=\"https:\/\/onpowbutton.com\/news\/push-button-dielectric-withstand-report\/\">push button dielectric-withstand evidence<\/a>. A dielectric test result has its own specimen, applied conditions and decision criteria. It cannot be relabeled as a CTI result, and a tracking index cannot replace the specified dielectric verification.<\/p>\n<h2 id=\"section-7\">Connect the report to change control<\/h2>\n<p>Material evidence can become disconnected from production when a part changes. A new formulation, a different production material reference or a revised insulating geometry may require reassessment. The correct response depends on the actual change and applicable requirements; it is not automatically a complete retest or automatically no action.<\/p>\n<p>Request a change-notification arrangement that identifies the affected part, the old and new references, and the evidence reviewed. Keep the approved material relationship in the <a href=\"https:\/\/onpowbutton.com\/news\/push-button-drawing-revision-control\/\">drawing revision control record<\/a> so that purchasing, quality and engineering use the same construction baseline. A report that remains valid for one version should not silently migrate to a different one.<\/p>\n<p>When a supplier cannot disclose a formulation, ask for a controlled confirmation of the represented part and scope. The confirmation should be specific enough to support the engineering decision without pretending that confidential information has been independently verified by the buyer.<\/p>\n<h2 id=\"section-8\">Worked example: a plausible number with missing identity<\/h2>\n<p>Suppose a quotation includes a material tracking value but the attached document identifies only a generic polymer family. The buyer wants evidence for the rear insulating part of a particular illuminated button. The number may be authentic, yet its relationship to that part is unresolved. Mark the material relationship as open rather than rejecting the whole product or accepting the number without qualification.<\/p>\n<p>Send a focused clarification: which grade was tested, which component uses it, which ordered variants are represented, and what controlled document connects them? If the manufacturer provides a matching part reference and report scope, the equipment engineer can continue the assessment. If the response changes to a different grade, retain both versions and resolve the discrepancy before approval.<\/p>\n<p>This example is a purchasing workflow, not a claim about ONPOW documentation. It illustrates why one traceable result is more useful than several impressive numbers with no connection to the ordered assembly.<\/p>\n<h2 id=\"section-9\">Build a clear enquiry and acceptance record<\/h2>\n<p>State whether the enquiry seeks a CTI comparison, a PTI proof requirement or documentation for an equipment insulation review. Include the exact product code, applicable drawing, represented insulating part and intended application. Ask for the method edition, material designation, specimen type, result and any limitations. Give the supplier the engineering question, rather than requesting \u201call insulation certificates\u201d without a defined purpose.<\/p>\n<p>The final approval should distinguish accepted evidence, assumptions and unresolved items. Link the tracking document to related <a href=\"https:\/\/onpowbutton.com\/news\/push-button-insulation-resistance-test-review\/\">insulation-resistance checks<\/a> without merging their conclusions. Contact ONPOW for the current specification and available documentation for the selected configuration; do not infer a CTI or PTI rating from the product photograph or this educational guide.<\/p>\n<h2 id=\"section-10\">Frequently asked questions<\/h2>\n<h3>Is CTI the same as insulation resistance?<\/h3>\n<p>No. They evaluate different aspects of insulation under different conditions. A clean finished-switch resistance measurement does not establish the tracking index of its insulating material surface.<\/p>\n<h3>Does PTI prove a higher CTI value?<\/h3>\n<p>Do not make that conversion. Read the report&#8217;s stated proof requirement and result, and ask the laboratory or manufacturer to explain its scope. Do not publish a comparative value that was not reported.<\/p>\n<h3>Can we use CTI directly as the switch operating voltage?<\/h3>\n<p>No. A material tracking result is not a complete component voltage rating. The equipment design must also address actual geometry, electrical conditions, environment and applicable insulation requirements.<\/p>\n<h3>What is the first document to request when the material identity is unclear?<\/h3>\n<p>Request a controlled relationship between the reported material grade, the relevant insulating part and the exact ordered configuration. Without that relationship, even a genuine report may not establish evidence for the supplied part.<\/p>\n<h2 id=\"learning-video\">Further learning<\/h2>\n<p>Khan Academy India explains conductors and insulators. Use this introductory background to distinguish an insulating material from an unintended conductive surface path; the lesson does not demonstrate IEC 60112 or establish a CTI for this switch.<\/p>\n<div class=\"onpow-video\"><iframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/3x1iz_0ysfI\" title=\"Conductors and Insulators | Electricity | Telangana Grade-7 Physics | Khan Academy\" loading=\"lazy\" allow=\"encrypted-media; picture-in-picture\" allowfullscreen><\/iframe><\/div>\n<p><a rel=\"noopener\" href=\"https:\/\/www.youtube.com\/watch?v=3x1iz_0ysfI\" target=\"_blank\">Conductors and Insulators | Electricity | Telangana Grade-7 Physics | Khan Academy \u2014 Khan Academy India &#8211; English<\/a><\/p>\n<\/article>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is CTI the same as insulation resistance?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. They evaluate different aspects of insulation under different conditions. 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Without that relationship, even a genuine report may not establish evidence for the supplied part.\"}}]}<\/script><\/p>","protected":false},"excerpt":{"rendered":"<p>\u064a\u062c\u0628 \u0623\u0646 \u064a\u062d\u062f\u062f \u062a\u0642\u0631\u064a\u0631 \u0632\u0631 \u0627\u0644\u0636\u063a\u0637 CTI \u0623\u0648 PTI \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0639\u0627\u0632\u0644\u0629 \u0648\u0627\u0644\u0639\u064a\u0646\u0629 \u0627\u0644\u0645\u062e\u062a\u0628\u0631\u0629 \u0648\u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629. \u064a\u0642\u0627\u0631\u0646 CTI \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u0633\u0637\u062d.<\/p>","protected":false},"author":6,"featured_media":4256,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-4259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"uagb_featured_image_src":{"full":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101.webp",1536,1024,false],"thumbnail":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101-150x150.webp",150,150,true],"medium":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101-300x200.webp",300,200,true],"medium_large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101-768x512.webp",768,512,true],"large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101-1024x683.webp",1024,683,true],"1536x1536":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101.webp",1536,1024,false],"2048x2048":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101.webp",1536,1024,false],"trp-custom-language-flag":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-cti-pti-material-report-feature-daily20261101-18x12.webp",18,12,true]},"uagb_author_info":{"display_name":"Turbo","author_link":"https:\/\/onpowbutton.com\/ar\/author\/turbo\/"},"uagb_comment_info":0,"uagb_excerpt":"A push button CTI or PTI report should identify the insulating material, the tested specimen and the method used. CTI compares resistance to surface.","_links":{"self":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/4259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/comments?post=4259"}],"version-history":[{"count":1,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/4259\/revisions"}],"predecessor-version":[{"id":4260,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/4259\/revisions\/4260"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/media\/4256"}],"wp:attachment":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/media?parent=4259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/categories?post=4259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/tags?post=4259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}