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Applicable to all Oil & Gas Operators Service Providers GUIDELINES AND PROCEDURE FOR LIFTING EQUIPMENT AND LIFTING OPERATIONS

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Applicable to all Oil & Gas Operators 
and 
Service Providers 
GUIDELINES AND PROCEDURE FOR LIFTING EQUIPMENT AND LIFTING 
OPERATIONS  
Code: DPR Guide 0024 - 2020 
 
Revision Date: 1st August 2020 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
9 
xi. 
Operation of all limit switches or cut-outs and safety devices. Caution to be 
exercised in making the checks in the event of non-operation.   
  
2.9 
Working Load Limit (WLL)   
This means the maximum load (mass), which any piece of lifting equipment may lift safely 
in the most efficient configuration. For wire rope sling, chain slings and fibre rope slings, 
this is in direct lift i.e. eye to eye in a straight vertical line/ hitch.   
  
 
2.10 
Safe Working Limit (SWL)   
This means the maximum load (mass), which any piece of lifting equipment may lift safely 
in a particular configuration, other than its most efficient configuration. e.g. for a wire rope 
sling choked on a square load without any corner protection, its safe working load is 
approximately 50%; choker hitch should be 80% of its WLL.   
  
2.11 
Proof Load Test   
This implies the application of a predetermined load excess of SWL to assess the ability of 
the equipment to withstand operation requirements. This applied proof load shall never 
exceed the elastic limit of the item being tested. The amount of Proof Load to be applied 
will vary depending upon the type of equipment, its SWL, and the applicable Standard. On 
completion of any proof load test, the “Lifting Equipment” is to be fully inspected to ensure 
that the structural integrity of the equipment has not been impaired.   
  
3 
PROCEDURE FOR LIFTING OPERATION   
3.1 
General Requirements   
Lifting equipment is so constructed or adapted as to be suitable for the purpose for which 
it is used or provided, and to have regard to the working conditions and risks to health and