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2. Tower crane anti-collision system - Wikipedia

   en.wikipedia.org/wiki/Tower_Crane_Anti-Collision...

   The operator's cabin hosts a display showing the tower crane's position, movement and operating area. Where the tower crane’s operating area overlaps with other cranes or prohibited zones these are also displayed. The system alerts the operator when the crane is approaching a prohibited area or another crane. [9]

3. Safe Load Indicator - Wikipedia

   en.wikipedia.org/wiki/Safe_Load_Indicator

   A Safe Load Indicator (SLI) or an Automatic Safe Load Indicator (ASLI) is a device which is installed on mobile or portal cranes to alert the operator if the lift is exceeding the safe operating range of the machinery. [1] In some cases, the device will physically lock the machinery in circumstances it determines to be unsafe.

4. File:The Notification of Conventional Tower Cranes ...

   en.wikipedia.org/wiki/File:The_Notification_of...

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5. Construction site safety - Wikipedia

   en.wikipedia.org/wiki/Construction_site_safety

   Various workplace safety signs commonly used at construction sites and industrial work environments. The leading safety hazards on construction sites include falls, being caught between objects, electrocutions, and being struck by objects. [23] These hazards have caused injuries and deaths on construction sites throughout the world.

6. Level luffing crane - Wikipedia

   en.wikipedia.org/wiki/Level_luffing_crane

   A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.

7. Job safety analysis - Wikipedia

   en.wikipedia.org/wiki/Job_safety_analysis

   A job safety analysis (JSA) is a procedure that helps integrate accepted safety and health principles and practices into a particular task or job operation.The goal of a JSA is to identify potential hazards of a specific role and recommend procedures to control or prevent these hazards.

8. Cialis and Alcohol: Is it Safe?

   www.aol.com/lifestyle/cialis-alcohol-safe...

   How Cialis Works. Cialis is a prescription medication designed to treat ED. It’s approved for this use by the U.S. Food and Drug Administration (FDA). Tadalafil is the active ingredient in Cialis.

9. Crane (machine) - Wikipedia

   en.wikipedia.org/wiki/Crane_(machine)

   A tower crane is usually assembled by a telescopic jib (mobile) crane of greater reach (also see "self-erecting crane" below) and in the case of tower cranes that have risen while constructing very tall skyscrapers, a smaller crane (or derrick) will often be lifted to the roof of the completed tower to dismantle the tower crane afterwards ...