HEALTH & SAFETY


Equipment should be checked before


every use, preferably by the worker using it. Materials can degrade over time regardless of use, but a common cause of loss of strength is abrasion or damage by cuts and any equipment showing signs of this type of wear should be scrapped, as should equipment that has suffered a high shock load.


A JOINT APPROACH TO SAFETY Te oil & gas industry is highly risk- aware, but no matter how well trained or experienced construction and maintenance workers are, ensuring that they have the


right equipment to stay safe at height has to be one of the main considerations of health and safety managers. To support them in this, PFPS equipment manufacturers such as Capital Safety can advise on the most appropriate equipment for specific applications and can offer training programmes that combine classroom or e-learning training backed up by hands-on training. Falling is a serious issue and entirely


foreseeable, so research into the correct equipment and investment in training to ensure its correct deployment is crucial. l


Jeff Dalgleish is with Capital Safety. For more information visit www.capitalsafety-training.com/uk


DROPPED OBJECTS LEAD TO SAFETY REVIEW I


t’s not only people that can fall; dropped objects also present a considerable safety risk in the oil & gas sector. In the USA, the Dropped Objects Prevention Scheme (DROPS) best practices guidebook is inspiring safety hazard management initiatives, including the first re- usable fastener recommended for secondary retention. Natural disasters such as raging winds and seas may appear to create the greatest risks to offshore oil platforms and gas rigs, however safety related and life threatening accidents continue to plague operations. A big concern is the growing number of reportable incidents and near misses that occur when overhead objects – equipment and tools – drop from hundreds of feet above a work area due to improper fastening and unreliable means of securing. Ryan Bostick, a Stanley


Engineered Fastening representative who is a specialist with expertise in both oil and gas industries, says the all-day technical sessions that are part of the current DROPS initiative, have spawned a new programme called “Train the Trainers”, wherein DROPS experts offer on-site consultations and instruction.


“They cover lighting and tooling and basically anything overhead that could fall and injure workers. That’s where Stanley Engineered Fastening, Spiralock and others come in,” says Bostick. One volume called Reliable


Securing discusses every form of fastening, including rope, wire, welding and soldering. Another name for this fastening reliability is secondary retention. About 90% of the world of fastening recognises secondary retention as a backup plan for the fasteners to make sure they will not come loose and create another dropped object incident. Primary retention on a nut, bolt or tapped hole typically refers to torque. “If you put a nut and bolt together and you torque them to a specification, you achieve primary retention. But what is your backup plan in case the operator fails to


torque it properly? What did you do to back that up?” asks Bostick. Another concern is fasteners


that loosen as a result of vibration and heat (when adhesives are used) in confined spaces offshore and onshore. For many years, the conventional method of secondary retention was standard locknuts, bonding agents, or safety wire. They all are reliable and accepted, but they are not reusable. Spiralock, a product of Stanley Engineered Fastening, introduced a reusable locknut and was added as an acceptable secondary retention device to the DROPS book. Spiralock also introduced the first


thread innovation for fasteners since WWII. Their re-engineered thread form adds a 30° wedge ramp at the root of the thread which mates with standard 60° male thread fasteners. The wedge ramp allows the bolt to


spin freely relative to female threads until clamp load is applied. Bostick says: “The free spinning function is important when you are 40ft above ground attempting to torque down a fastener without falling.” Spiralock supplied the first re- usable nut to be introduced into the secondary retention world of dropped objects. l


www.engineerlive.com 47


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