업계 인사이트
마이크로덕트, 광케이블 설치 및 공압 연결 전문가를 위한 업계 뉴스, 기술 가이드 및 실무 프로젝트 인사이트.
A spare microduct and a duct carrying cable can need protection at the same chamber, but they do not present the same sealing interface. Ordering an end stop and a gas block simply because both are described as closures overlooks that difference. The end stop closes a vacant bore; an occupied duct leaves a space around the cable that needs a compatible cable seal.…
When a field technician in Denver, USA, capped an open microduct before a storm, the cap later stuck to a nicked tube and pulled the edge outward. This illustrative scenario is not a customer case. Measuring the duct OD, cutting back to undamaged HDPE and using the supplied clip avoided damage while keeping the route protected. The short answer is: A Microduct End Stops…
When a network contractor in Bristol, UK, connected a short repair section, air escaped at the first bend. This illustrative scenario is not a customer case: the root cause was a diagonal cut and a missing insertion mark, not a mysterious fitting defect. Seven repeatable steps turned the repair into a documented, airtight joint. The short answer is: Reliable HDPE compression fittings depend on…
When a fiber installer in Oulu, Finland, switched a 12 mm feeder duct to a 10 mm branch, the first pressure check failed within minutes. This is an illustrative scenario, not a claimed customer case: the reversal came after measuring both outside diameters (OD), cleaning the cuts and selecting a reducer matched to each wall thickness. The connector was not “bad”; the transition specification…
When a fiber-installation supervisor in Manchester encountered a falling air-pressure reading during a last-mile blow, she first blamed the compressor. The crew isolated the handhole and measured both HDPE ducts; a nominally similar straight fitting crossed two different outside diameters. A correctly sized reducer stopped the leak, showing the root cause was selection and installation control, not simply a bad fitting. The short answer…
When a network contractor in Manchester encountered repeated air loss on a new FTTx spur, the crew first blamed the blowing unit and replaced a connector at the cabinet. The leak reappeared as soon as the next cable run began. A review of the as-built notes showed that the reducer had been selected by nominal duct size, while its actual outside-diameter range and prepared…
맨체스터의 통신 현장 반장이 광케이블 포설 작업 전 도로변 캐비닛에서 12/10mm 덕트를 연결했을 때, 콤프레서 압력이 떨어지면서 케이블이 다음 접근점에 도달하지 못하고 멈춰 섰다. 커플러는 멀쩡해 보였다; 빠른 실패의 원인은 12mm 직선 피팅의 한쪽에 10mm 덕트가 억지로 끼워져 있었고, 거기에…
리즈에서 FTTx 포설을 위해 블로잉 작업을 준비하던 광케이블 설치 감독관이 쉭 소리가 나는 이음새를 발견했을 때, 작업팀은 먼저 컴프레서 설정을 높였으나 압력계는 여전히 급격히 떨어졌고 케이블은 전진하지 않았습니다. 눈에 보이는 고장은 불량 피팅처럼 보였으나, 캘리퍼 점검과 절단면의 면밀한 관찰을 통해 진짜 원인들이 드러났습니다. 명목상 일치하는 하나의…
브리즈번의 광케이블 공사 현장 소장이 가로변 캐비닛 옆에서 두 개의 12/10mm 덕트를 연결한 뒤, 간단한 인장 시험을 거쳐 포설용 구간을 개방했다. 몇 분 지나지 않아 이음부에서 쉭쉭 소리가 나고 케이블이 멈춰 서면서 불량이 드러났다. 처음에는 실외용 커플러가 열을 받아 고장 났을 것으로 추정했으나, 검사 결과 HDPE 절단면이 비스듬했고, 삽입이 불완전했으며, 덕트가…