Search for "cable cleat"New! No Bolts Cable Cleat is a fully polymeric cable cleat designed for fast installation. The cleat is manufactured from a high strength nylon specifically formulated to meet the London Underground 1-085 specification. Due to its non-metallic design the cleat is impervious to ‘bi-metallic corrosion’ and suitable for use in the harshest of environments.
cleat dimensions:
New! No Bolts Cable Cleat is a fully polymeric cable cleat designed for fast installation. The cleat is manufactured from a high strength nylon specifically formulated to meet the London Underground 1-085 specification.
Due to its non-metallic design the cleat is impervious to ‘bi-metallic corrosion’ and suitable for use in the harshest of environments.
This product features a push fit locking mechanism on the keepers and the top clamp provide fast installation. The cleats can also be stacked on a quarter turn feature provided by channel twist fit versions.
Features:
New! No Bolts Cable Cleat is a fully polymeric cable cleat designed for fast installation. The cleat is manufactured from a high strength nylon specifically formulated to meet the London Underground 1-085 specification. Due to its non-metallic design the cleat is impervious to ‘bi-metallic corrosion’ and suitable for use in the harshest of environments.
cleat dimensions:
Should you be using cable cleats instead of stainless steel cable ties for your next project? ETS stocks both product types and we’re often asked which is the most suitable for a particular installation.
ETS recently caught up with Richard Shaw from cleat manufacturer Ellis for his thoughts on stainless steel cable ties and cable cleats. Here is what he said.
“Claims have recently begun to emerge from certain quarters that imply stainless steel cable ties can be placed on an equal footing with cable cleats.
Amongst the claims being made are:
My problem with these assertions is that although stainless steel cable ties and cable cleats are complementary products, the area of overlap is extremely small – and when explored fully, it’s immediately apparent that it’s an area of considerable risk. What this means is that the kind of claims being made about stainless steel cable ties are, at best, extremely misleading.
Cable cleats are made in a variety of materials to accommodate a wide range of installation conditions and locations. Our product range alone features stainless steel, mild steel, extruded aluminium, cast aluminium and a wide range of polymers. Many of our cleats combine metals and polymers to deliver the best solution.
Cable cleats also come in a number of different varieties. Again using our product range as an example, we supply cable saddles, cable straps, flexible cable cleats, hinged cable cleats and even the most straightforward of cable clamps.
In contrast, a stainless steel cable tie is just that – a cable tie available solely in stainless steel.
Creating an analogy about the two products highlights the scale of the differences between them perfectly: A stainless steel cable tie manufacturer may claim their wrench is as good, if not better, than the cable cleat manufacturer’s. But the cable cleat manufacturer retorts by pointing out they don’t just have one wrench, they have an entire tool kit.
Before even considering the question of price, we first have to decide which of the many types of cable cleat we should compare the stainless steel cable tie with.
In the examples I’ve seen, the price comparisons between the two tend to pit cable cleats at the upper end of their range against cable ties. While this may seem unfair, the comparison has been made so let’s see how it stands up to scrutiny.
First, it’s obvious that a single stainless steel cable tie will be cheaper than what is the strongest of stainless steel cable cleats – after all, you get what you pay for.
But even so, would the entire cost of both product and installation be cheaper if you used cable ties rather than cleats? It may surprise you to discover that the answer is almost certainly no – but why?
When considering the strongest stainless steel cable cleat it is ludicrous to try and equate it to a single stainless steel cable tie. Yes, both products are made from similar material, but there is, of course, a lot more steel in a cleat than a tie.
Therefore, in order to make a direct comparison you need to consider the cross sectional area of the material being used – a calculation based on width, thickness and the number of times it is wrapped round the cables.
Cable ties are typically less than 20mm wide and less than 0.4mm thick and so have a cross sectional area of less than 8mm2.
If the strap is wrapped round twice we have material with a maximum cross sectional area of 16mm2 securing the cables. In comparison, a top of the range stainless steel cleat will have a cross sectional area of 100mm2.
Harking back to simple physics, the ultimate tensile strength of a material is proportional to its cross sectional area – and that’s something you simply can’t argue with.
Using the information above, and all relevant supporting short circuit test data, if the calculated fault level for a system required the installation of an Ellis Emperor cleat every 300mm, it would come as a great surprise if the cost of the equivalent appropriate number of cable ties was less than the cost of the cleats – and that’s before you even take into account the time it would take to install them all.
The final point I’d like to address is short-circuit testing, and in particular the question of whether the data gathered from a test is transferable to a real life installation?
As far as cable cleats are concerned, the answer is usually yes. This is because, under fault conditions, a cable cleat constrains all the forces generated between the cables. The mounting structure has no influence on the cleats performance and so it should perform at the level indicated on the short-circuit test certificate.
The situation is nowhere near as cut and dried when it comes to stainless steel cable ties – mainly because of the difference in fixing methods. Typically there are three ways in which a cable tie is used to attach cable to ladder:
1. The cable tie can be wrapped around both the cable and the rung.
2. The cable tie can be installed using a mounting bracket, which fixes to the rung.
3. The cable tie can be fed through perforations on the ladder rung if they are present.
Of these three methods, both option 1 and option 3 introduce significant variables that will have an impact on likely performance during a fault. In both cases a foreign body is being introduced to the loop that contains the cable.
As such everything from ladder material to rung profile; types of hole and sharpness of edges; and even surface finish and cable diameter can have an impact on the whole arrangement.
As such, it’s impossible to say that the result of a short-circuit test on a stainless steel cable tie is transferrable to the real world, unless the installation is identical to the testing set-up.
Of course, installation option 2 is more likely to deliver real-life performance that matches short-circuit testing performance for a cable tie. But in this scenario both the cost of the parts required, and the installation time will increase significantly, making it even less competitive when the number of ties to cleats ratio is taken into account.
What needs to remembered when considering the respective merits of both stainless steel cable cleats and cable ties is that the primary concern for all those involved in electrical cable installations should be safety.
In order for an electrical installation to be deemed safe, cables need to be restrained in a manner that can withstand the forces they generate, including those generated during a short-circuit.
Yes, both cable ties and cable cleats have their place in the specification picture. And yes, there is a minimal amount of overlap where it is feasible that an installer or specifier could choose one over the other. But it is minimal, and the specification decision shouldn’t be made based on misleading claims aimed squarely at undermining the sales of a tried, tested and trusted solution.
All cable cleats designed and manufactured by Ellis Patents undergo a thorough testing program prior to launch, including short-circuit testing. Even after launch, products are regularly short-circuit tested and will perform at the level on the relevant certification during a real life short-circuit scenario.
Not one of our installed cable cleats has ever failed. Therefore, make sure you make the correct specification decision on your next electrical installation.
If you don’t the dangers posed by a short-circuit are plentiful – costly damage to cables and cable management systems, plus the risk to life posed by incorrectly installed live cables.”
ETS Cable Components are an official supplier, stockist and distributor of Ellis Patents cable cleats.
ETS also supplies a range of stainless steel cable ties as well as tooling.
If you would like any help with choosing the right product for your next project, please get in touch with the knowledgeable ETS sales team: +44 (0) 20 8405 6789 | sales@etscablecomponents.com
A brochure is available setting out ETS’ wide range of cable cleats. To find out more click here.
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Cable cleats from leading power cable accessories supplier ETS have been installed at The Shetland Gas Plant which came into operation this week.
Even though the Laggan and Tormore vast reserves were discovered over 30 years ago, poor weather conditions have meant that up until now only oil was able to be extracted from the area.
Now Total with its partners have built the production system on the seabed 600m down,140km from land. Gas is taken back to land in one of the world’s longest “tieback” pipe networks to the Shetland plant for treatment. A pipeline carries the gas to the mainland and then into the national gas grid.
The Shetland Gas Plant development is said to be the biggest construction project in the UK since the London Olympics in 2012.
Cleats were specified by Petrofac, the EPC contractor. ETS supplied the cleats through Petrofac’s appointed sub-contractor.
The new plant is capable of delivering energy to two million homes (about 8% of the UK’s gas needs) and will handle each day 500 million standard cubic feet of gas.
ETS Major Projects Manager, Matt Taylor, said:
“We were pleased to be chosen as a supply partner for this high profile development at The Shetland Gas Plant. This once again is a reflection of our high quality service that we always strive to deliver.”
ETS have worked closely with cleat manufacturer Ellis on a number of projects across different sectors. In April last year, the partners helped restore power back to the West End after a major underground fire.
Cleats supplied for The Shetland Gas Plant development included:
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| Vulcan Cable Cleats |
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| Emperor Stainless Steel Trefoil Cable Cleats |
ETS are leading stockists and distributors of LV, MV and HV power cable accessories and electrical equipment for the utilities markers.
Connect with Matt Taylor on LinkedIn.
Main image by kind permission of the Shetland Times.
Fire proof cable cleats manufactured in Yorkshire by Ellis have been installed throughout the new BP4 Tower at Canary Wharf, London.
The BP4 tower development at 25 Churchill Place, Canary Wharf, is a 23 storey tower comprising of 530,000 sq. ft. of high quality commercial accommodation. The building is designed to achieve an “Excellent” BREEAM rating.
Designed specifically for installation with fire protection (FP) rated cables, the Phoenix cleats are made from 316L stainless steel and are both fire proof and corrosion resistant. They were specified by Hilson Moran through Ellis’ UK distributor, ETS Cable Components and installed by electrical contractor, Phoenix ME Limited.
“In order for FP rated cables to continue working in an emergency they need to remain intact and in place,” said Ellis’ UK sales director, Paul Nolan.
“If these cables aren’t properly restrained then the risks are clear – the loss of vital services and the likelihood of live cables falling and causing potentially lethal hazards.”
Working in conjunction with Exova Warringtonfire, BRE and ETS, Ellis initially developed its Phoenix range in 2011.Prior to launch the products underwent a wide range of tests, including exposure to fire, impact and water spray, all of which combined to ensure that the range offers fire protection to the same level as the cables it is installed to protect.
Phoenix Cable Cleat and Fire Performance Cable Test
“Any building should strive to ensure that the products used to protect the emergency systems are the best available, but when you consider BP4 is a 130-metre, 23-storey, 530,000 sq. ft. development in the heart of one of London’s key business districts then it’s fair to say that in this instance it was an absolute imperative,” continued Paul.
During 2013, Ellis called for a ban on the use of plastic products as the sole means of cable support in areas where fallen cables may put fire fighters’ lives at risk. This widely publicised call has resulted in a forthcoming change to building regulations.
“Everything we do, whether with Phoenix or our other products, is done with safety at the forefront of our minds,” added Paul. “Electrical cables are dangerous and need to be restrained in a manner that ensures they don’t become a danger to others.”
For more details on the range of Ellis Patents cable cleats available, including the fire rated Phoenix cleat, please contact our Sales Team.
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