Technically, engineers refer to these items as Below The Hook devices. They
include such things as spreader bars, sheave assemblies, slings and cables. In
oilfield rig work, they also include such things as elevators and bails. In a
manufacturing environment, they include things like grapples, sheet lifters and
coil lifters. In any lifting system with a rated capacity of 2000 kg or more, Section 89 from
the Alberta OH&S Code Part 6 applies:
89 An employer must ensure that all load-bearing components of a mobile
crane undergo non-destructive testing under the direction and control of a
professional engineer in accordance with the manufacturer's specification at
12-month intervals from the date of the mobile crane's most recent
certification.
Below The Hook devices are load-bearing components and fall under this
regulation. We can inspect and certify your Below The Hook devices.
We can work out a capacity for an existing device for which you have that you no
longer have documentation. We can design and certify a device from scratch
to meet your requirements. We can pull-test, inspect and certify various kinds of slings, hooks, and clevises.
Whatever the device, chances are very good we can help you use it to lift the loads you require.
These kinds of devices also fall under Section 297 of the Alberta OHS code (and similar provincial codes) and must,
by law, meet the requirements of ASME Standard B30.20-2006, Below the Hook Lifting Devices. That code mandates what information the user must have
to operate the device,
how the device is marked and identified, and a schedule for inspection and maintenance. We can help with your periodic and OEM/Engineer-mandated special inspections.
(1) An employer must ensure that wire rope, alloy steel chain, synthetic fibre rope, metal mesh slings and synthetic fibre slings manufactured on or
after July 1, 2009 meet the requirements of ASME Standard B30.9-2006, Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks and Slings.
(2) An employer must ensure that below-the-hook lifting devices, other than slings, meet the requirements of ASME Standard B30.20-2006, Below the Hook
Lifting Devices.
(3) Despite subsection (2), an employer may use a capacity data sheet to label a spreader bar with its rated capacity.
(4) Where a capacity data sheet is used in accordance with subsection (3), an employer must ensure that the data sheet and corresponding spreader bar
are identified by a unique numbering system.