close-chain

замкнутая кинематическая цепь
Кинематическая цепь, звенья которой образуют один или несколько замкнутых контуров.
[Сборник рекомендуемых терминов. Выпуск 99. Теория механизмов и машин. Академия наук СССР. Комитет научно-технической терминологии. 1984 г.]

Тематики

• теория механизмов и машин

Обобщающие термины

• структура механизмов

EN

• close looped kinematic chain

DE

• geschlossene kinematische Kette

FR

• chaîne cinématique ferme

навесной замок
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Параллельные тексты EN-RU

...be provided with a means permitting it to be locked in the OFF (isolated) position (for example by padlocks).
[IEC 60204-1-2006]

... иметь средства для запирания в положении ОТКЛЮЧЕНО (отделено), например, с помощью навесных замков.
[Перевод Интент]

Источник: insight-security.com
In simple terms, a padlock has three major components; the Body, the Shackle and the Locking Mechanism, …it may also incorporate features such as a weatherproof casing, anti drill or anti cropping protection, etc.

Discus style padlocks - have no angular corners, so are often used with cycle security chains and cables, as well as being a popular choice for securing doors on sheds and beach huts, etc. When used as a door lock, they will typically be used in conjunction with the special shrouded discus hasp and staple set, which offers extra protection to the padlock shackle.

Shutter Locks / Anvil Locks - are typically used to secure the external (or internal) security roller shutters fitted to shop fronts. They are also popular for use with parking posts, motorcycle security chains, etc.

Conventional Style padlocks have a wide range of applications from low security applications like locking your toolbox, to high security uses such as securing factory gates or protecting motorcycles. They are typically available as; Open, Close, or Semi Enclosed Shackle types

Shackleless type padlock (shown with special hasp)

Shackleless Padlocks - this is a bit of a misnomer as the padlock does of course have a shackle, it’s just that it’s on the underside of the lock body and therefore unseen. This type of padlock can be round (like the one pictured) or rectangular, but typically, they are designed to be used with a special matching security hasp. Because of their design, these units are difficult to attack and over recent years, as well as being used on warehouse doors, etc, they have also become very popular for use on vans and other vehicles where they are used to secure opening double doors.
 

4 tumbler combintion padlock

A "Close Shackle" padlock is one with built in shoulders, which are designed to minimise the amount of the shackle exposed, to a saw or bolt cropper attack. This type of padlock will normally have a higher security rating than an equivalent unit with a semi enclosed or open shackle, however subject to size and clearances, may not be practical for instance, to use where you need to secure 2 chain links together or require a padlock for use with a shrouded hasp, etc. To make them easier to use, many Close Shackle padlocks feature "removable shackles" which are fully released from the body of the padlock when it's unlocked.

An "Open Shackle" padlock will typically be easier to use where the shackle needs to pass through 2 chain-links (i.e, a chain securing two opening gates together), etc. As more of the shackle is exposed however, this makes it potentially easier to attack with a saw or bolt croppers.

A "Semi Enclosed Shackle" padlock is something of a compromise, but will often offer more flexibility in use than a Close Shackle padlock and improved security over an Open Shackle model.

Тематики

• электробезопасность

EN

• padlock

air and gas drilling — бурение с продувкой воздухом или газом

bottom supported marine drilling — бурение скважин с опорой на дно (со стационарной свайной платформы)

drilling by jetting method — бурение гидравлическим способом

drilling with salt water — бурение с промывкой солёной водой

drilling with sound vibration — вибробурение со звуковыми частотами

dual bore cluster drilling — двухствольное кустовое бурение

high velocity jet drilling — бурение с помощью высоконапорных струй жидкости

air reverse circulation drilling — бурение с продувкой забоя воздухом и обратной циркуляцией

cluster directional drilling of slant — кустовое наклонно направленное бурение

downhole electric motor drilling — бурение погружным электробуром

drilling off the whipstock — бурение со стационарного отклонителя

drilling with localized mud circulation — бурение с местной промывкой

drilling without drill pipe — беструбное бурение

hydroturbine downhole motor drilling — гидротурбинное бурение

drilling afloat — бурение наплаву;

drilling by flame — 1) термическое бурение 2) прожигание скважин;

drilling by jetting method — 1) бурение гидравлическим способом 2) гидромониторное бурение;

drilling deeper — углубка скважины;

drilling for gas — бурение на газ;

drilling for oil — бурение на нефть;

drilling for structure — картировочное бурение;

drilling for water — бурение на воду;

drilling from floating vessel — бурение с плавучего основания;

drilling in cramped quarter — бурение глубоких скважин из выработки малого сечения;

drilling into abnormal pressure zone — бурение в зоне высокого давления;

drilling off the whipstock — бурение со стационарного отклонителя;

drilling on the bottom — чистое бурение;

drilling out of cement plug — разбуривание цементной пробки;

drilling suspended indefinitely — бурение прекращено на неопределённое время;

drilling the pay — разбуривание продуктивного пласта;

drilling to completion — бурение до проектной глубины;

drilling to predetermined depth — бурение до проектной глубины;

drilling to projected depth — бурение до проектной глубины;

drilling with aerated fluid — бурение с промывкой аэрированной жидкостью;

drilling with aerated formation water — бурение с промывкой аэрированными пластовыми водами;

drilling with air — бурение с очисткой забоя воздухом;

drilling with counterflow — бурение с обратной промывкой;

drilling with explosives — взрывное бурение;

drilling with localized mud circulation — бурение с местной промывкой;

drilling with mud — бурение с промывкой буровым раствором;

drilling with oil — бурение с промывкой раствором на углеводородной основе;

drilling with salt water — бурение с промывкой солёной водой;

drilling with sound vibration — вибробурение со звуковыми частотами;

drilling without drill pipe — беструбное бурение;

drilling without returns — бурение с полным поглощением бурового раствора в стволе скважины

to step up a drive — увеличивать скорость привода