{"id":2316,"date":"2025-12-26T07:11:57","date_gmt":"2025-12-26T07:11:57","guid":{"rendered":"https:\/\/xbrele.com\/?p=2316"},"modified":"2026-04-07T14:14:55","modified_gmt":"2026-04-07T14:14:55","slug":"tulip-contacts-heating-replacement-criteria","status":"publish","type":"post","link":"https:\/\/xbrele.com\/de\/tulip-contacts-heating-replacement-criteria\/","title":{"rendered":"Was ein Tulpenkontakt tats\u00e4chlich bewirkt (und warum die Versilberung wichtig ist)"},"content":{"rendered":"\n<p>Tulip contacts are the separable, high-current interface used in drawout MV equipment: the moving primary stab mates into a spring \u201ccage\u201d of multiple copper fingers (\u201cpetals\u201d) on the fixed side. The design spreads current across many micro-contact spots, so the joint can tolerate vibration, thermal cycling, and repeated insertions\u2014until force or surface condition is lost.<\/p>\n\n\n\n<p>Three things govern whether a tulip joint stays cool and stable:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Normal force:<\/strong> the petals must maintain pressure around the circumference. If force relaxes (fatigue, prior overheating, wrong stab size, deformation), the true contact area shrinks and resistance rises.<\/li>\n\n\n\n<li><strong>Surface finish (silver plating):<\/strong> silver is widely used because it supports low interface resistance and more forgiving behavior under sliding contact. In practice, spare tulip contacts are often silver plated around <strong>8\u201312 micrometers<\/strong>, and common assemblies cover <strong>630 A to 5000 A<\/strong>, depending on geometry and cooling.<\/li>\n\n\n\n<li><strong>Engagement quality:<\/strong> centering and insertion depth decide whether the whole ring of fingers shares current or whether one sector gets overloaded.<\/li>\n<\/ul>\n\n\n\n<p>Heating is an interface phenomenon. A small increase in contact resistance becomes a large thermal penalty at high current because the joint\u2019s loss is proportional to I\u00b2R.<\/p>\n\n\n\n<p>Standards context: general requirements for AC high-voltage switchgear and controlgear are covered under <strong>IEC 62271-1<\/strong>. <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/32982?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">IEC Webstore<\/a><\/p>\n\n\n\n<p>If you\u2019re sourcing or matching replacement contacts, start with the parts-level reference here: <a href=\"https:\/\/xbrele.com\/switchgear-parts\/vacuum-circuit-breaker-parts\/\">vacuum circuit breaker parts catalog<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-01-interface-cutaway.webp\" alt=\"Cross-section of tulip contact petals gripping a male stab with silver-plated contact band\" class=\"wp-image-2318\" srcset=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-01-interface-cutaway.webp 1024w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-01-interface-cutaway-300x164.webp 300w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-01-interface-cutaway-768x419.webp 768w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-01-interface-cutaway-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"heating-separate-normal-warm-from-damage-in-progress\">Heating: separate \u201cnormal warm\u201d from \u201cdamage-in-progress\u201d<\/h2>\n\n\n\n<p>A healthy tulip connection can run warm. A failing one announces itself with a <strong>localized, repeatable hot spot<\/strong> that tracks a single interface.<\/p>\n\n\n\n<p>Make your thermal checks comparable:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Scan after <strong>20\u201330 minutes<\/strong> at steady load, and keep the camera distance\/angle consistent.<\/li>\n\n\n\n<li>Log <strong>current (A)<\/strong> and ambient <strong>(\u00b0C)<\/strong>. A joint that looks acceptable at <strong>400 A<\/strong> can become the dominant hotspot at <strong>1200 A<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>What to look for:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Localization:<\/strong> \u201cnormal warm\u201d is broad along the conductor path; a failing tulip joint is a tight hot spot near the mating band.<\/li>\n\n\n\n<li><strong>Phase comparison:<\/strong> under similar loading, one phase running <strong>10\u201320\u00b0C<\/strong> hotter at the same joint location usually means force loss, film contamination, or uneven engagement\u2014not \u201crandom load.\u201d<\/li>\n\n\n\n<li><strong>Repeatability:<\/strong> if the hot spot moves after re-racking\/re-seating, suspect alignment or insertion depth. If it comes back to the same place after a careful re-seat, suspect permanent surface\/force damage.<\/li>\n\n\n\n<li><strong>Trend:<\/strong> two scans <strong>7\u201314 days<\/strong> apart under similar duty are more actionable than a single snapshot.<\/li>\n<\/ol>\n\n\n\n<p>If the hot point is near the insulated spout\/contact box area (not only on the metal joint), review contamination paths and tracking evidence here: <a href=\"https:\/\/xbrele.com\/epoxy-contact-box-basics\/\">epoxy contact box basics<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-02-ir-hotspot-pattern.webp\" alt=\"Three-phase comparison showing a localized tulip contact hotspot and trending approach\" class=\"wp-image-2319\" srcset=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-02-ir-hotspot-pattern.webp 1024w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-02-ir-hotspot-pattern-300x164.webp 300w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-02-ir-hotspot-pattern-768x419.webp 768w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-02-ir-hotspot-pattern-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Pattern-based thermography schematic highlighting localized hotspots versus uniform conductor warming.<\/figcaption><\/figure>\n\n\n\n<p>[Expert Insight]<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A \u201cfixed\u201d hotspot that returns at the same axial band usually means the true engagement band is damaged, not just dirty.<\/li>\n\n\n\n<li>IR images without load context (A, time at load, ambient) often lead to the wrong corrective action.<\/li>\n\n\n\n<li>Re-seat improvements that vanish at the next peak duty cycle often indicate marginal normal force.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"root-causes-that-create-high-resistance-in-tulip-contacts\">Root causes that create high resistance in tulip contacts<\/h2>\n\n\n\n<p>Once you\u2019ve confirmed localized heating, the root causes are usually one of these interface degradations:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Plating loss in the working band:<\/strong> when the silver is worn through where the stab actually sits, the joint becomes more sensitive to films and fretting debris.<\/li>\n\n\n\n<li><strong>Fretting corrosion:<\/strong> micro-motion plus thermal cycling generates debris that behaves like a resistive layer and accelerates wear.<\/li>\n\n\n\n<li><strong>Normal-force loss:<\/strong> spring relaxation or heat-softening reduces the number and stability of micro-contact spots, especially in higher-duty joints.<\/li>\n\n\n\n<li><strong>Finger damage \/ uneven engagement:<\/strong> bent or cracked petals concentrate current into a smaller sector and create a repeatable hot spot.<\/li>\n\n\n\n<li><strong>Misalignment or shallow insertion:<\/strong> only part of the circumference carries current; hotspots may shift when the unit is re-seated.<\/li>\n\n\n\n<li><strong>Damaged mating surface:<\/strong> scoring, pitting, burrs, or out-of-round stabs scrape plating and create high points and debris.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-04-failure-mechanism-tree.webp\" alt=\"Failure mechanism tree for tulip contact heating: plating, fretting, force loss, and misalignment\" class=\"wp-image-2321\" srcset=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-04-failure-mechanism-tree.webp 1024w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-04-failure-mechanism-tree-300x164.webp 300w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-04-failure-mechanism-tree-768x419.webp 768w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-04-failure-mechanism-tree-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Failure mechanism tree showing how surface condition and force loss drive contact resistance and heating.<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"inspection-measurement-workflow-you-can-run-in-the-field\">Inspection &amp; measurement workflow you can run in the field<\/h2>\n\n\n\n<p>The goal is repeatable evidence, then controlled correction steps.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Capture operating context first<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Record load <strong>current (A)<\/strong>, ambient <strong>(\u00b0C)<\/strong>, and time at load (<strong>min<\/strong>).<\/li>\n\n\n\n<li>Shoot thermal images after <strong>20\u201330 minutes<\/strong> at steady duty from the same viewpoint.<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Visual inspection (after safe isolation)<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contact band: worn ring, discoloration, pitting, black debris.<\/li>\n\n\n\n<li>Finger symmetry: \u201cone-side heavy wear\u201d is a strong hint of alignment or shallow engagement.<\/li>\n\n\n\n<li>Adjacent insulation: browning, tracking marks, softened polymer, dust trails.<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Mechanical checks<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slow re-seat: gritty engagement often indicates debris or surface damage.<\/li>\n\n\n\n<li>Hardware play: even slight looseness encourages micro-motion \u2192 fretting \u2192 heat.<\/li>\n<\/ul>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>Cleaning (only if allowed by OEM method)<\/strong><br>Use non-residue approaches; avoid aggressive abrasion that removes plating. If film returns quickly, assume the underlying force\/surface problem still exists.<\/li>\n\n\n\n<li><strong>Re-test under comparable duty<\/strong><br>If a hotspot disappears once and returns under the next similar load, treat it as a degradation trend, not a success. When available, add a low-resistance measurement (DLRO) and record the joint value in <strong>milliohms<\/strong> before and after correction steps; the absolute number varies by design, but the change and repeatability are what matter.<\/li>\n<\/ol>\n\n\n\n<p>For broader arc\/interrupting context (useful when operators mislabel contact heating as \u201carc damage\u201d), see: <a>https:\/\/xbrele.com\/vacuum-arc-interruption-basics\/<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"replacement-criteria-when-cleaning-tightening-is-no-longer-enough\">Replacement criteria: when cleaning\/tightening is no longer enough<\/h2>\n\n\n\n<p>Use repeatability + condition to decide.<\/p>\n\n\n\n<p><strong>Tier A \u2014 MONITOR<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stable thermal profile; no persistent localized hotspot.<\/li>\n\n\n\n<li>Light polish marks only; no pitting or heavy debris.<\/li>\n\n\n\n<li>Smooth, symmetric engagement.<\/li>\n\n\n\n<li>Trend check: confirm stability over <strong>7\u201314 days<\/strong> under similar duty.<\/li>\n<\/ul>\n\n\n\n<p><strong>Tier B \u2014 SERVICE-NOW (correct, then verify)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Localized warming that improves after re-seat\/controlled cleaning but remains noticeable around higher duty (e.g., <strong>~1200 A<\/strong> running load).<\/li>\n\n\n\n<li>Partial plating loss, moderate fretting marks, early discoloration.<\/li>\n\n\n\n<li>Uneven engagement pattern or suspected shallow insertion.<\/li>\n\n\n\n<li>Re-scan after <strong>20\u201330 minutes<\/strong> at steady load.<\/li>\n<\/ul>\n\n\n\n<p><strong>Tier C \u2014 REPLACE-NOW<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hotspot persists after controlled re-seat\/clean and repeats at the same location; trending worse duty-to-duty.<\/li>\n\n\n\n<li>Deep pitting, heavy black debris, visible arcing traces, severe discoloration, missing\/cracked petals.<\/li>\n\n\n\n<li>Weak \u201csnap\u201d feel or obvious deformation; mating surface visibly scored or out-of-round.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-03-replacement-decision-ladder.webp\" alt=\"Decision ladder for monitoring, servicing, or replacing overheated tulip contacts\" class=\"wp-image-2320\" srcset=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-03-replacement-decision-ladder.webp 1024w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-03-replacement-decision-ladder-300x164.webp 300w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-03-replacement-decision-ladder-768x419.webp 768w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/xbrele-tulip-contacts-fig-03-replacement-decision-ladder-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Decision ladder summarizing repeatability- and condition-based criteria for replacement.<\/figcaption><\/figure>\n\n\n\n<p>[Expert Insight]<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If the mating stab surface is damaged, replacing only the tulip contact often shortens the time to the next hotspot.<\/li>\n\n\n\n<li>\u201cReplace-now\u201d is usually triggered by repeatability (same place, same symptom) more than by a single high temperature.<\/li>\n\n\n\n<li>Photograph the contact band position before disassembly; it helps distinguish shallow engagement from surface degradation.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"replacement-planning-that-avoids-repeat-failures-parts-interface-matching\">Replacement planning that avoids repeat failures (parts + interface matching)<\/h2>\n\n\n\n<p>A tulip contact replacement works when you treat it as an interface system, not a single spare part. Many repeat heating cases happen because force and surface compatibility are never verified, so the new contact begins fretting early and the hotspot returns within <strong>30\u201360 days<\/strong> under peak duty.<\/p>\n\n\n\n<p>Send an RFQ-ready \u201creplacement data pack\u201d:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Photos:<\/strong> close-up of the working band, any pitting\/discoloration, plus a full view showing alignment and insertion direction.<\/li>\n\n\n\n<li><strong>Electrical duty:<\/strong> typical and peak <strong>current (A)<\/strong>; steady vs cyclic loading.<\/li>\n\n\n\n<li><strong>Thermal evidence:<\/strong> IR images with ambient <strong>(\u00b0C)<\/strong> and time at load (<strong>min<\/strong>).<\/li>\n\n\n\n<li><strong>Mechanical notes:<\/strong> insertion feel (smooth\/gritty), any looseness, whether the hotspot shifts after re-seat.<\/li>\n\n\n\n<li><strong>Mating surface condition:<\/strong> scoring\/burrs\/ovalization on the stab\/spout; if you can, include approximate engagement length (<strong>mm<\/strong>).<\/li>\n\n\n\n<li><strong>Environment:<\/strong> dust, salt fog, chemical exposure, and ventilation inside the bay.<\/li>\n<\/ul>\n\n\n\n<p>Share the data pack with XBRELE and we\u2019ll help match the contact configuration and replacement scope (contact-only vs contact plus mating-surface service) to stop repeat heating.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Tulip Contacts Heating Explained: Silver Plating Wear, Hotspot Diagnosis &amp; Replace-Now Criteria\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/NeI20ieg9Ng?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">FAQ<\/h2>\n\n\n\n<p><strong>1) What\u2019s the quickest way to confirm a tulip-joint issue is localized?<\/strong><br>Compare the same joint across phases under similar duty; a consistent outlier usually indicates an interface problem.<\/p>\n\n\n\n<p><strong>2) Can a joint look clean and still overheat?<\/strong><br>Yes\u2014low normal force or uneven engagement can create high resistance without obvious contamination.<\/p>\n\n\n\n<p><strong>3) Why does re-seating sometimes reduce temperature temporarily?<\/strong><br>It can redistribute contact spots, but it doesn\u2019t restore worn plating or weakened spring behavior.<\/p>\n\n\n\n<p><strong>4) Is one thermal scan enough to justify replacement?<\/strong><br>Often it\u2019s better to confirm repeatability under comparable load, unless there is clear mechanical damage or severe surface deterioration.<\/p>\n\n\n\n<p><strong>5) What information best prevents ordering the wrong replacement contact?<\/strong><br>Working-band photos plus load context (current, duty pattern) and clear fit\/engagement notes usually remove most ambiguity.<\/p>\n\n\n\n<p><strong>6) What\u2019s a common reason new contacts fail soon after replacement?<\/strong><br>A damaged mating surface or alignment problem can keep scraping the interface and drive fretting even with the correct new part.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"related-reading-and-selection-resources\">Related Reading and Selection Resources<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/xbrele.com\/switchgear-parts\/\">switchgear parts overview<\/a> ? practical checks, limits, and commissioning notes<\/li>\n\n\n<li><a href=\"https:\/\/xbrele.com\/switchgear-parts\/contact-box\/\">Epoxy Contact Box Series 12kV &#8211; 40 5kV<\/a> ? selection logic and failure-prevention details<\/li>\n<\/ul>\n\n","protected":false},"excerpt":{"rendered":"<p>Tulip contacts are the separable, high-current interface used in drawout MV equipment: the moving primary stab mates into a spring \u201ccage\u201d of multiple copper fingers (\u201cpetals\u201d) on the fixed side. The design spreads current across many micro-contact spots, so the joint can tolerate vibration, thermal cycling, and repeated insertions\u2014until force or surface condition is lost. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2317,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[24,27],"tags":[],"class_list":["post-2316","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vacuum-circuit-breaker-knowledge","category-switchgear-parts-knowledge"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/posts\/2316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/comments?post=2316"}],"version-history":[{"count":5,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/posts\/2316\/revisions"}],"predecessor-version":[{"id":3592,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/posts\/2316\/revisions\/3592"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/media\/2317"}],"wp:attachment":[{"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/media?parent=2316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/categories?post=2316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xbrele.com\/de\/wp-json\/wp\/v2\/tags?post=2316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}