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Where the three single core power cables carry three phases, the trefoil formation of cable is used. The single three phase, multi-core cable is not a part of this type of cable formation. In case of short circuits in single core cables with trefoil formation usually ends up with a high degree of flexible electromagnetic forces that can result in loss of human life and potential damage to the cable management system. So the dynamic electromagnetic forces are required to be restrained properly. The Trefoil cable restraining device or the Trefoil cable cleats are the framework used to grip the three single core power cables making a trefoil (triangular-touching) formation. After understanding the trefoil formation of the cable cleats, the below article finely describes the Multiphysics Model that helps derive the best suit of the trefoil cable cleat for your cabling project. It also uncovers the strong points of the Multiphysics Model that has helped in testing outlay, making the operation more quick, cost effective and a reliable one.
A typical trefoil design for cable cleat involve a substructure or a foundation base that is attached to a cable tray, cable ladder, channel, concrete or a masonry. This operation to attach a substructure is done with the help of bolts and tools. A constraining system is in the mainstream to fix up well and tighten the three single phase cables in a required trefoil structure. The Trefoil formation of the cable fetches the prime merit of the minor or lesser effect of localized heating with upholding the current carrying capacity in the circuitry and reducing the induction of the eddy currents.
The exact selection of the cable cleats that best suits a particular environment, purpose and with required features is super salient that needs to be taken care of as an important concern at the time of planning, designing and implementation stage to make the cable gland installation or rework a success with smooth operations that saves time and money. The factors that are vital and pondered about while selecting an appropriate and accurate kind of cable cleat are short circuit rating, mechanical load, electrical system, type of cables used, external bodies and thermal stability. Each of the cable cleat designs has varied benefits, mechanical strength and features.
These processes involve a lot of short circuit tests, cost and time in order to get an accurate and best suited type of trefoil cable cleat for a particular project. These test results also involve a comparison of the cleat spacing, fault level and the diameter of the cable. In majority of the case one ends up with a number of the cleat design and combination that can be put into use. With this, the Multiphysics Model Of Trefoil Cleats is proved to be first choice for the trefoil cable cleat manufacturers that helps to verify the selected cleat design is strong enough for a particular application. A time dependent finite version is used to overcome these issues which has possibly achieved a high degree of accurate physical test that has helped the engineers to come up with an innovative trefoil cable cleat design and selection decisions.
Let’s plug into to the secret behind the increased use of the Multiphysics Model for Trefoil Cleat during short circuit condition and its importance to ensure power cables are restrained safely!
The customization in the manufacturing of trefoil cable cleats needs rigorous physical testing techniques of the product or model design. The applied test includes the portion of three single core power cables to be clutched with cable cleats with a connect to three phase short circuit. So varied combination of every type of assembly of cable, cable cleat and applied current will end up with a multifarious result including an N number of testing operation which can prove to be more time consuming and costly affair. So the researchers have come up with a ‘Multiphysics Model’ to make sure that the power cables are restrained safely.
It involves the electromagnetic forces, current, material plasticity along with contact analysis to access different cable cleat layouts and implementation scenarios pretty fast during a short circuit condition with maintaining a required quantity and quality at reduced cost and time. This model helps stimulate and derive the dynamic load condition on the cleat design and cables during a short circuit test.
With a substantiated Multiphysics Short Circuit Model, its riches do not end in its usage for assessing novel design for load levels and specific application, but it is also increasingly used in minimizing or quantify the total cable cleats required for a specific length of cables with proven testing of safety level at short circuit conditions in addition to effectively reducing the installation expense.
The Multiphysics Model for a trefoil type formation in cable cleat installation is entirely a three dimensional parameterized model wherein the magnetic field physics and electric current are allied to a structural mechanism of the cable cleat design. It brings out a thorough detail on the dynamic electromagnetic load on the cleat and cables during the short circuit conditions.
Thus, the parameters that can be smoothly adjusted and assessed with the help of this model include the cable diameter, peak fault current, conductor type and size, inner material properties of the cleat, insulation thickness, cleat spacing and other functionalities that provide a room to take a precise decision for the engineers to perfectly blend the functions and material to exquisitely choose the best type of trefoil cable cleat for a particular cable protection assignment.
BICC Components Limited (BICC) is a professional and an experienced manufacturer and distributor of Trefoil Cable Cleats. Having a powerful team of proficient experts, that has experience to use the Multiphysics Model for the Trefoil cable cleat that fully tests the toughness and counteraction that takes place during a short circuit condition. With the help of this three dimensional model, we have brought customization with a wide range in cable cleats. To know more, visit https://www.bicccomponents.uk.com/ . Do contact us to solve your doubts or to get a quote or a consulting service. We are just a call away or you can also mail us your queries. Visit https://www.bicccomponents.uk.com/contact/ to get contact details.
