|Document ID (ISN)||67179|
|ISSN - Serial title
||0944-8780 - Tiefbau
|Convention or series no.
||Safe leakage testing of underground ducts
||Sicherheitstechnische Aspekte bei der Dichtheitsprüfung erdverlegter Kanäle [in German]|
||Sep. 1995, Vol.107, No.9, p.628-630, 633-634, 636, 638-640. Illus.
||Sewers need to be inspected at regular intervals for the presence of leaks. The conventional methods that are applied for such inspections are outlined. They use compressed water or compressed air. The safety requirements which need to be observed in Germany for performing the inspections are summarized. A new unit for detecting leaks in underground sewers is introduced. It operates with compressed air and accommodates both the shut-off and leak detection equipment. The leak is located with the help of sound reflection. In comparison with the outlined conventional methods the new method is safer and less expensive.
||compressed air; sewage; work in sewers; leakage testing; sanitation services
||description of equipment; safety engineering; safety by design; description of technique; equipment testing
||D - Periodical articles
|Country / State or Province||Germany|
||Commerce, services, offices
|Broad subject area(s)
||Mechanical hazards, transport
||Water and sanitation services