A proof load test is an evaluation performed on devices such as derricks and cranes to determine their load bearing capabilities. Generally, proof load tests are used to test at much greater capacities than their actual expected use so that the maximum amount of weight it can bear can be verified. Proof load testing services are offered for different types of load bearing equipment to gauge proficiency levels. The testing is necessary to ensure that the equipment is safe to use, to ensure it is dependable and can carry out the expectations of a heavy workload.
These tests, carried with weight up to several tons, are done to ensure that the equipment doesn’t fail or yield under a certain amount of pressure (which often results in the defamation of materials). Testing is usually done on a single piece of equipment or an entire fleet. Most companies that specialise in lifting equipment services offer proof loading test services and computerised tests that are calibrated to industry standards using state-of-the-art testing equipment. Sometimes data software is capable of precise measurements for proof load services and is used by some companies to derive the best results. This software has the ability to retrieve information in a number of formats including data graphs and charts. The tests are done by highly-trained experts in compliance with SANS regulations that apply to various lifting equipment.
Each lifting equipment will fail under its own limit; hence it is very important for the staff to conduct these tests in accordance with SANS regulations. The SANS standards include specifications and procedures for inspection, test and examination for machinery use. The primary aim of these regulations is to ensure that the companies are following industry protocol and safety regulations in the testing of lifting equipment while also satisfying their clients. The companies perform proof load test on a variety of equipment like the following:
- Lifting devices
- Wire rope slings and assemblies
- Oilfield equipment and tools
- Equipment baskets
- Screw Jacks
- Car Jacks
- Trolley Jacks and Stands
- Twist locks
- Tow balls
- Fixed platforms
- Walkways
- Stairways
- Ladders
- Guardrails
Companies need to have the necessary equipment to conduct the proof load test. Companies use a variety of equipment to perform a variety of tests like multiple test beds that can have a capacity of up to 650 tons (650000 kg) and portable load cells with a maximum capacity of 55 tons. The tests are conducted at regular frequencies and scheduled in a way that would reduce any adverse impact on their clients’ business operations. Proof load test equipment also needs to be calibrated in accordance with ATSM standards. It is crucial for these companies to ensure that all the load-bearing systems are working both safely and effectively.
A proof load testing is the best solution to ensure both safety and efficiency in cases where rigging and load lifting are involved.