Cables are rarely heeded by their users. Hidden underground, they can perform reliably for many decades, requiring little-to-no attention and generally going unnoticed. But only if theyve been installed correctly.
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The reality is, cable pulling is no easy feat even for the most experienced of workers.
Throughout the delivery and installation process, its very easy for the cables to become damaged. And even simple issues can lead to a range of serious consequences from a delay in your projects completion and the need for extra resources to additional costs and customer dissatisfaction.
RopesDirect is by no means an expert in telecoms cable pulling. But we are a leading online supplier of high-quality draw cord and sub-duct ropes. And to help set our customers on the right track, here weve rounded up a few simple tips for a smooth, trouble-free cable installation.
Read on and improve your chances of first-attempt success.
If your cable pulling tools are in good working order, this can greatly reduce the risk of any cable damage particularly bends in the cable and its associated safety hazards.
Prior to your installation date, be sure to examine the condition of your pulling cord, cable winch, cable roller, cable socks etc. If you notice any signs of deterioration or suspect that something isnt working quite right, it may be worth contacting your supplier or investing in new equipment.
Here at RopesDirect, we can assist with the replacement of any defective pulling cords.
Having recently added several new lines to our range, were now home to one of the largest online collections of draw cord and sub-duct rope with a product to suit all requirements.
Currently, we stock:
Available in 6mm-16mm diameters, on reels measuring from 450m to m in length
Including 6mm ropes on m reels, and 6.9mm ropes on 500m reels
Sold in a range of widths from 2mm to 22mm, in 100m and 200m reels as standard. Longer reels can also be supplied upon request.
All of which are ideal for heavy-duty cable pulling applications. In fact, we now supply many large telecommunications companies throughout the country providing high-quality draw cords, manufactured to the very highest standards, for an incredibly competitive price.
Successful handling of your cable starts with the supplier or wholesaler.
The manufacturer will typically deliver cables on an appropriately sized cable drum, which has been loaded under controlled factory conditions helping to avoid any unnecessary damage.
However, having been cut to length, suppliers will often redrum the cable onto smaller delivery drums. And if the delivery drum chosen is too small for the cable, it can result in both external scuffing and over-bending. Which is why, its always important to do your research.
Is the supplier an experienced and knowledgeable company? Do they have any online reviews? How will the cable be transported to your project site? Be sure to partner with someone you can trust.
Details of these can usually be found in the information sheets from the cable manufacturer.
Typically, they include:
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Failure to adhere to the cables parameters can lead to a wide range of problematic damage, including everything from tears in the sheath and moisture to over-bending of the cable. So before you begin the installation, be sure to take a look and familiarise yourself with this information.
The cable and drum may look strong and resilient to wear and tear, but there are many ways in which they can become damaged during storage therefore, certain rules need to be followed.
For example, if the cable has been stored inside, you should schedule a minimum 24-hour acclimatisation period before its installation. This will help to avoid the possibility of condensation build-up. If its stored outside, ensure the ground is as even and clean as possible.
The drum should also never be pushed along the ground on its flanges, as this can reduce its overall strength. Instead, store and transport the cable drum on both flanges and always observe the rolling direction printed onto the drum. This will ensure the wound cable doesnt become loose.
Missing or improperly sealed cable ends can very easily lead to moisture and water penetration. Therefore, following the installation, be sure to check that all cable ends are still intact.
Even if you cant spot any visible or obvious signs of damage, it may still be worth applying plastic or rubber tape especially if the cable will be subject to immersion or high levels of rain.
If youre preparing for an important cable laying project and wish to invest in new high-quality pulling cords for the job, browse our full range and place your order today.
These are some of our best-selling products, particularly popular with cabling companies who are looking to buy in quantity. So we always have a large supply of stock in our warehouse and can offer a very quick turnaround simply order by midday for next working day delivery!
Further information on our draw cords and sub-duct ropes can be found throughout our website, particularly in our previous blogs Orange duct rope for cable pulling and Why choose us for draw cord? so if youre still unsure, its worth checking these out.
Were also always happy to help in any way that we can. We might not be telecoms experts or have detailed knowledge of successful cable pulling procedures, but we do have in-depth knowledge of all of our products. Whether you have a specific question about our draw ropes or would like advice on the best type and diameter for your requirements, please dont hesitate to contact us.
Cable pulling is exactly you think it is. It is the installation of a cable from one point to another, often through open trenches and ducts, to connect a power supply from the mains to a where new electrical supply is required. Though it sounds simple, there are complex factors to take into consideration.
The number of infrastructure projects that require cable installation is surprising. The installation of cables often requires several hundred metres of cable to be installed at a time, in various environmental conditions.
Before the winch became the standard apparatus for this application, these cable installations were commonly accomplished by hand, which put those with the task in hand at serious risk of injury. Using a winch today will save you time, money and drastically reduce the chance of serious injury.
Our blog explores the basics of cable pulling and the factors to take into account when you are working with this piece of equipment on your next project.
When it comes to cable pulling, it can mean anything from installing a small diameter fibre optic data cable in a sub duct, to landing a large diameter HV power cable from an offshore vessel to an onshore installation or a windfarm.
Cables are delivered on large wooden or steel drums, these need to be supported by a drum dispenser that allows them to rotate freely, uncoiling the cable in a controlled manner. All cable routes should be pre-checked for obstructions prior to install. These pre-checks are commonly known as proofing, pigging, brushing, or cleaning.
When working in cold temperatures, extra caution should be taken. Cable can become brittle and less flexible in the cold, its always advisable to check the certification supplied with the cable to see what temperature parameters the cable should be installed in, extra caution should also be considered when temperatures are extremely high.
Ensure trenches and ducts are clear, obstructions left in the cable route can increase the friction on the cable making it susceptible to damage. It is always recommended to use cable lubricants to lower the pulling friction, especially if bends of any type are in the cable path.
Before any pull, you need to be sure the tension exerted onto the cable will be within the accepted manufacturers limits. Cable tension can be increased by a variety of factors, which is why it is so important to set the winch within these parameters before you start. To calculate the pulling tension, you need to know the cable weight including drum, the number of bends, the angle of any bends, if lubrication is being used, and if there are any pre-exiting cables installed.
If all the pre-installation checks have been carried out including proofing etc, then there is less of a chance of damage occurring during the pull. For cable pulls that involve directional changes or where multiple cables will be installed into a single duct, it is even more important to monitor the pull. Data monitoring equipment is common on most standard winches these days, however, check with your supplier if you require this, especially when your client is requesting proof of data. Winches can be supplied with data monitoring that record, tension, distance, and speed. Each pull can be printed individually, or the data can be supplied via a USB stick as evidence the project was successful.
Contact us to discuss your requirements of Cable Pulling Tools. Our experienced sales team can help you identify the options that best suit your needs.