Welcome to our Frequently Asked Questions page. When we visit customers around the world, we are met with questions from time to time and we are happy to answer. They are very different from customer to customer and are quite natural if you have not worked with flexible aluminum cables before. Get answers to how long an aluminum cable can be, current value, cable lugs and more in this FAQ. Please read below and feel free to contact us if you have any questions not covered here.
Basically yes. Conductor resistance is approx. 1.6 times larger for an aluminum conductor than a copper conductor of the same cross-section. But if you compare a regular copper rubber cable H07RN-F, with 60 ° C permissible conductor temperature, with our flexible Alukaflex rubber aluminum cable, which has a permissible conductor temperature of 90° C, they are close. The most important thing, however, is to focus on how much power is needed and where and how the cable will be used. With this information we can easily find a suitable solution in aluminum that is both cheaper and lighter than a conventional copper solution
Learn more about Alukaflex.
Yes! Cables have been used to meet industrial and construction site needs for many years. Here, a conductor temperature of 90°C is common, but when a conductor is operating at a temperature higher than 70°C, it must be established that the equipment connected to the conductor is suitable for the resulting temperature at connection. Using these materials allows greater current values and thus also a higher temperature rise. Alukaflex® has a maximum conductor temperature of +90°C and can therefore be used at high outdoor or ambient temperatures.
Learn more about Alukaflex.
Yes! Depending on dimensions and cross sections, Alukaflex® gives a weight advantage of approx. 15% at low dimensions and up to approx. 40% for large dimensions and cross sections. Generally, the higher the cross section, the higher the benefit.
See weight comparison.
Yes, there is. Aluminum cables are cheaper than copper cables. You could say that the larger the dimension and the cross section, the greater the price advantage. This is because aluminum is cheaper and less fluctuating in price, on the international metal exchanges. It naturally affects the production price of the aluminum cable, making it an attractive replacement for the copper cable. There is usually between 15% and 40% saving, compared to a standard H07RN-F cable.
No, not when you know how to do it. One difference compared to copper is that you should be aware that aluminum forms an oxide layer on the surface. This oxide layer must be broken to avoid high contact resistance problems. This is done by applying a contact paste and cleaning the conductors with a steel brush before contact pressing.
Learn more about connectors.
Because of the flexible aluminum conductor (like class 5) in the Alukaflex® cable, you should always choose a cross-section higher compared to a cable with stranded (class 2) conductor when choosing cable lugs or press connectors.
Example: cable 1x120 mm² connector / cable shoe 150 mm²
Learn more about connectors.
No, it does not. It's done like all other cables. It just requires the right tool. At DanCables, we partner with Intercable (former Weitkowitz), who provides quality tools for cables like e.g. hydraulic press tool.
Learn more about crimping tools.
The Alukaflex Connect concept combines the flexible Alukaflex aluminum cable with Powersafe connectors from Phase 3 Connectors in the UK. It allows power distribution up to 565 amps and the current capacity of the Alukaflex cable combined with Powersafe connectors have been proven in a long-time test with full load for 3500 hours. The bi-metal single-pole Powersafe connector replaces the use of cable lugs, providing a secure connection that cannot be accidentally disconnected during load. This is due to the connector's Powerlock locking system which is mechanical and locked.
Learn more about Powersafe.
Sure, there are a lot of companies switching to using aluminum cables. They do this, among other things, because there are several benefits to it. Aluminum cables are cheaper than copper cables. This is because aluminum is cheaper and less fluctuating in price, on the international metal exchanges. This, of course, affects the production price of the aluminum cable and makes it an attractive replacement for the copper cable. Another advantage is that the aluminum cables are lighter in weight. Furthermore, the aluminum cables are not subject to the same risk of theft as the scrap price for aluminum is much lower than on copper.
Learn more about copper theft.
Our flexible aluminum rubber cables are manufactured according to standard EN 50525-2-21, cable type H07BN4-F, except for the conductor material. This conformity is confirmed by a test DEKRA has made. We also asked a third-party testing center to do a long-term test of the Alukaflex Connect solution, which consists of Alukaflex single-conductor aluminum cables and Powersafe connectors. The test shows that we can fully charge the cables for a long time without failing or overheating.
Learn more about tests and certificates.
All DanCables cables are manufactured to our specifications and requirements to high quality and performance as well as the latest technology. They are tested at an independent test center to ensure they meet the desired specifications. The cables are not physically produced in Denmark, but with good partners around the world.
DanCables is a Danish family-owned company that designs quality cables and solutions for temporary installations. Our cables are manufactured to our specifications and requirements to quality materials according to the latest technology. It gives you a guarantee of high performance and no failures. Our flexible aluminum cables have been tested to the same standard as H07BN4-F cables and are DEKRA certified. We cooperate with the largest wholesalers in the Danish market, but also have large customer groups abroad. By choosing us as a supplier you get a valuable partner who is flexible and can produce the cables you are looking for. Our focus is on customer-specific solutions that, for example can be produced locally at our warehouse in Ansager or at our partner's factory, in larger quantities.
Learn more about DanCables.
An aluminum cable can be as long as you would like. Simply make sure to dimension it correctly according to your voltage drop and load requirements. Conductor resistance is approx. 1.6 times larger for an aluminum conductor than a copper conductor of the same cross-section. If you stay within 50 meters for an extension cord, Alukaflex adheres to a voltage drop of 4%.
Learn more about Alukaflex.
The white strip on the Alukaflex rubber cable is there to indicate that it is an aluminum cable. This way you can easily see the difference between your cables and at the same time reduce the risk of theft.
Learn more about Alukaflex.
The black stripe on the yellow Alukaflex PUR cable is there to indicate that it is an aluminum cable. This way you can easily see the difference between your cables and at the same time reduce the risk of theft.
Learn more about Alukaflex.
Alukaflex 07BN4-AF in rubber is resistant to high temperatures. In addition, it is UV-, oil- and ozone-resistant. The excellent flexibility of the cable makes it very easy to handle. The PUR variant 07BQ-AF offers weight advantages due to the lighter material compared to the 07BN4-AF. The outer PUR sheath is also very strong, making the cable extremely robust to external influences such as impact, cuts and abrasion. Alukaflex 07BQ-AF is also halogen-free and UV resistant.
Learn more about Alukaflex.
Today, the flexible aluminum conductor is not part of the standard for industrial cables, which means that Alukaflex is not considered harmonized. Therefore, "H" is omitted in the type description. The terms "B" and "N4" stand for the high quality, conductor temperature up to 90°C and resistant insulation and casing material on the cable. Regarding the rated voltages: Single-conductor Alukaflex BN4-AF has been tested to 3.5 kV, so it can be permanently loaded with a rated voltage up to 1000V. The test and certificate are based on the EN 50525-2-21 standard applicable to cables up to 450 / 750V. First, the official name applies to 07BN4-AF. However, through a special revision and display in the data sheet, the general nominal voltage of 1000V for single-conductor cables and thus in fact here relevant term BN4-AF.
Learn more about tests and certificates.
Alukaflex is designed to the same standard as H07BN4-F with the difference that an aluminum conductor is used as there is no official standard for flexible aluminum cables. Alukaflex is DEKRA certified.
Learn more about tests and certificates.
By default, our cable sets are available in lengths of 5, 10, 15, 25 and 50 meters, but they can be made to exactly the length you need.
Learn more about Alukaflex.
Yes, you can. Simply remember to dimension it correctly according to the load and length of the cable.
Learn more about Alukaflex Connect.
Yes, they easily can. We have tested most of the major manufacturers' CEE connectors and it works fine. Then you have a specific desire for a make of connectors, then we can easily find a solution to that.
Yes. In a long-term test we have loaded an Alukaflex 1x240 coupled with a bi-metal Powersafe (type Powerlock) connector with approx. 565 A for 3500 hours without any problems with overheating.
Learn more about Alukaflex Connect.
Stackbox can be customized just as you need it. Therefore, the short-circuit value also depends on which components you choose to put in your Stackbox.
Lean more about Stackbox.
Contact us
We hope you found answers to your questions in our frequently asked questions section. We are of course available if you still have questions or would like us to elaborate on some of the topics. On the “Contact” page you can find both telephone number, contact form and email address.
