Attachment 2: General Specifications for ILA Design

6.1 GENERAL SPECIFICATION FOR DESIGN &

(SAMPLE)

6.1.1 PURPOSE. The lifting and handling specifications herein shall control the design, documentation and certification of general purpose service equipment being manufactured for PNSY. This specification is derived primarily from the requirements of the Lifting & Handling Manual for integral lifting attachments.

6.1.2 DEFINITIONS

6.1.2.1 Integral Lifting Attachment (ILA). An ILA is a lifting attachment that is fabricated or formed as an integral part (i.e., permanently attached to) the component or equipment to be lifted. Examples of an ILA include:
6.1.2.1.1 A padeye
6.1.2.1.2 A hole cut in the structure
6.1.2.1.3 A threaded hole
6.1.2.1.4 A welded block of material attached to add a threaded hole 6.1.2.2

Unit. The item or load being lifted to which ILAs are permanently mounted.

6.1.2.3

PNSY. Portsmouth Naval Shipyard

6.1.2.4

Contractor. The entity fabricating the Unit.

6.1.2.5 Designer. The qualified engineer or entity designing the Unit including the ILA installation to the Unit.

6.1.2.6 Base of Support. That porti

contacts the ground
and supports the Unit when the Unit is on the ground (i.e., footprint). 6.1.2.7 Qualified Engineer. An engineer who is competent in the practice of structural and/or mechanical engineering as a result of education and experience. 6.1.2.8 Working Load Limit (WLL). The maximum allowable load that can be applied to a designed structural component without infringing on its safety factors defined herein, aka: design capacity.

6.1.3 GENERAL

6.1.3.1 Any deviations to this specification that pertain to ILAs or other crane lifting and handling related functions must be approved in writing by PNSY, with concurrence from the PNSY Lifting and Handling Department Technical Division (Code 710).

VOL III, CHAP 4

CH-2

APPENDIX 6.1

6.1.3.2 A lifting plan that includes a diagram for lifting the Unit shall be provided by the Designer/Contractor and must be approved by PNSY prior to fabrication of the unit, with concurrence from the PNSY Lifting and Handling Department Technical Division (Code 710)
, if
applicable), center of gravity location, ILA details and the locations of each ILA. The plan shall also include any basic lifting restrictions and any special allowances, including, but not limited to, minimum sling length, minimum sling capacity, or allowance for out-of-plane pulling on padeyes (if applicable), etc. 6.1.3.3 Threaded holes intended to be used as ILAs shall not be lubricated and shall