This is Ivema´s latest Innovation:

Contactwire thickness-measuring with radio transmitting to your Smartphone (or tablet, PC, or any).  From measurepoint to the next an entire measure-series will be created and will be professionally processed in the software-APP.

Our engineer´s main target was to create an APP with the highest intuitivity of using the APP.  The result; a software APP which is easy to use, clear understandable and leaves nothing to be desired. Amazing for the thickness-measuring of Contactwires.

Beside the maindatas like company, name and ordernumber the datas of the exact date/ time and the GPS location datas of each measurepoint will be saved, as well.  Our Software-APP in your Smartphone will generate a professional Test-/ Measureprotocol with these datas. The Inspection-results will be stored hereby and can be detailly reproduced years later.

We are at the Exhibition INNOTRANS this year, 20th to 23rd September 2022.

Our booth:  Hall 22, Stand 375

The Measure-System (and a couple more of innovations) are waiting for you to test.  We as well…. to talk with you   

Der Beitrag Contactwire Measuring…. erschien zuerst auf Ivema-Fahrleitungsbau.

… but this year a bit different under the slogan „fishes instead of fireworks“!

We are donating an adequate amount to the Sealcenter Pieterburen (NL) for the conservation of the world natural heritage the Wadden Sea. Due to the current lockdown in the Netherlands, facilities that depend on donations or the sale of entrance-tickets need our help more than ever! This is why we decided that there should be rather a firework of fishes for the seals this year

Der Beitrag Ivema CHARITY erschien zuerst auf Ivema-Fahrleitungsbau.

Usually there are no bad issues by crimping rope-connections of Bronze-ropes, pure copper-ropes, or steelcopper-alloy ropes.  Everyone uses oval-crimp connectors made of copper.

These material combinations are, of course, optimal!

But completely different is the crimping of stainless steel ropes or hot-dip-galvanized ropes (zinc-plated).  Recently a numerous of companies (e.g. Catenary-installers, and Tram-operators as well) asking themselves the serious question:

“how do I really crimp stainless steel ropes – technically flawless!?”

Latest after some press-connections became loose, it reveals that the common combination of stainless ropes with Aluminum-notch connectors is a really bad decision.

After some years a worst Alu-corrosion and oxidation will takes place and partly the oval-notch-connectors will become loose.

That´s why we know that this topic has to be taken with highest seriousity!

Under this technical background it is self-explanatory the aluminium/ stainless crimping should´nt be used anymore, whereas the crimp connectors made out of stainless steel can and shall be used for the future.

Basicly notchconnectors made of stainless steel are available in the market,  BUT: the point is these connectors are only available with mantle thickness of 3 mm so far.  This fact causes problems by pressing with a manual handpress tool at the crafting site, which is impossible by the high crimp-pressures needed!  (thick notch-connectors need a press force of 200 kN and more)

Ivema´s team has researched this issue and has with a numerous of material- and crimptests developed a crimp connector that has a relative thin mantle and thus opens the possibility to crimp with a manual pressing tool – Ivemapress just requires 130 kN press force, only. 

These mentioned 130 kN press force that needs to be applied on our new IVEMA-PRESS notch connector leads to a flawless compression of the oval-connectors <-> stainless-steel-ropes.

It also leads to a very well material-connection and deforming inside the connector and won´t stress the steel wire strands.   (as you see in the following depiction below)

Please! …be aware of our technical rights for this product. Patent pending.

Der Beitrag IVEMA-PRESS erschien zuerst auf Ivema-Fahrleitungsbau.

Again a new product from Ivema´s-Creative-Team — our new Messengerwire Pulley with 360° turnable suspension, and additional upper retaining tab.

Our Team worked on a solution to cover the problems of undefined and worst torsions onto the Catenary-system by using usual pulleys in areas of curves. Such worst using/ installations can be found in endless Tramway-Catenaries (high-chains) all over the world. In curves with a low radius the pulleys are faced to extreme and undefined torsions and they will take damages and will hinder the entire Catenary-system in their dynamic, elasticity and freely moving of the „chain“.

If pulleys installed at long doubletrack-Cantilevers or in Catenary-rope-fields makes not really a difference – as long as the pulley gets into an angle position (or horizontal) caused by high horizontal forces, the technique will be forced to torsions and worst distorsion. (–> see following pics….)

At least the result is, that the Pulley deforms, …and the pulleyframe, … and that the bearing takes damages and at least the pulley won´t be able to roll! This is better to call as „Messengerwire-sliding-device“ , as a pulley!!! …. following pics will show this…..

Ivema´s new innovative Messengerwire-Pulley does now have a 360° endless turning suspension clevis, because in some cases the Cross-field does not span the track with 90°, rather with an angle up to 45° and sometimes less.

And this new product is extremely innovative caused by the additional upper retaining tab , which shall be used in Curves with a low radius – however…, always when the Pulley takes a horizontal position or a worst angle.

By using the upper tab we will have an optimized installation of the hanger-rope, and a forces/tension situation, which do not causes any worst and damaging torsions in the Catenary. 

… like pics below are showing . 

Patent Penbding for this „Messengerwire-Pulley with upper tab“

Der Beitrag Messenger-Pulley 360 erschien zuerst auf Ivema-Fahrleitungsbau.

 The Operator Connexxion has realized a renovation of a „Bridge-protection“ with our new installation technique in summer 2020.

Especially for this project a special design for the Sandwich-Insul-boards and the sideguides at the left and the right of the boards was required. Ivema has designed and engineered a suitable solution.

An additional challenge for the Operator and the Staff aside was…., they required an easy solution to be able to repair the System in case of an accident (e.g. a Truck who damaged and/or fully destroyed the boards).

Due to this reason the Installationteam installed the clamp under the board and the screw outside of the board.

A probable change of the boards (as described, after an accident) is now easy to manage.  The staff needs to untorque the screws outside, move the H-profile a bit sidewards, and the board is free to handle and to replace.  Very, very easy! Handcrafters who knew the ordeal of the past will love this solution!

Also during the installation at site the Craftsmen saw really great advantages. They have entirely preassembled all parts under the bridge-ceiling, at the last step they plugged in the boards sidewards, pushed the H-profile and torqued the screws.

Statement of the Craftsmen: „wow, we never thought that such an installation can be so easy also….“.

Der Beitrag Trolleybus Bridge-Insulation with NEW Suspension-clamp from Ivema erschien zuerst auf Ivema-Fahrleitungsbau.

After a 8 months longterm „out of service“ period, the Suspension Railway in Wuppertal ist still working since 100 days now.  Nobody is happy to remember that bad event by November 2018 when a 300 meter long Current-rail section was fallen down due to a break of an old Insulator.

But for Ivema-Fahrleitungsbau a well reason to communicate our Co-work on the technical solution, on why this transportation system in Wuppertal was allowed to become back into operation in August 2019.

Ivema delivered Loop-Insulators for this socalled „back-to operation-project“; Insulators who will take care that the current rail will be held at the top, not falling down again for the future (so to speak a meachanical/electrical redundance). In an unlikely event that an Insulator, or a holding-clamp would breaks, the Loop insulators were additionally installed here to catch the rail.

The picture below shows the technical solution, on how this catch-device has been realized.

These shown solution was examined during lots of test-procedures. After such a bad damage event the Oprator must be more than 100% safe that the solution itself, and all items, raw-materials and the construction as well, must be conform to the highest requirements.

A couple of Engineers form Wuppertaler Suspension Rail and independent Engineers and Constructeurs,  and Approving-authorities from Government and Technical-Supervision-authority gave after intensive calculations and breakable parts-checks their final approval and a GO and their green light!

So, the construction is well and all items (as well the loop insulators) are conform with all Norms, valid Laws and product-safety-law, and are able to withstand the high forces in case of a bad damage event, which shall never be happen again.

Technical Datas of our Insulator:

• Hole-hole distance 150mm
• Permanent load under operation (Fperm) 25 kN
• Failing load, break (Ffail) 75-80 kN
• Insulating voltage, under operation 3,0 kV
• ECR Fibreglasscore, silicone-housed

Der Beitrag WUPPERTAL SUSPENSION RAILWAY 100!! erschien zuerst auf Ivema-Fahrleitungsbau.

How often do you think will you be faced to an event of „I need to inspect something rapidly – NOW!!!“ ?  Usually this is really allways a challenge, because special-machinery is needed.  It is a nature of the matter that an Overhead catenary is installed in a heigth and thus ladders, scaffolds, Steiger-lifters or Towercars are necessary.

We developed now a practical accessory, which can be used in a connection with an Earthing rod (maybe telescopicrod) – which is allways available on a Maintenance or Service car – and allows a short Pre-Inspection of OCS-areas in the heigth.

We love to show hereby our Bajonet-deviceholder for e.g. Smartphones or Cameras – it can be attached to an Earthing-equipment rod.

Onto this holder a Smartphone, or Camera, or any other device will be attached, the Videofunction will be switched on (or camera via bluetooth(R)-switching). Then the telescopic-rod will be extended and relevant videos or pictures will be made in the heigth. Afterwards you can evaluate the data-files easily on your computer, or handheld.

If an inspection of a bridge-insulation-application, or burnt contacts of hornswitches or section-insulators, the adjustment of tension-springs or wall-anchor-checks – the bandwith of different usings do not have limits  (e.g. as shown in the pictures; with an infrared-accessory for a smartphone).

This little assistent tool should be placed in every maintenance tools-set, kept in the cases of Earthing equipment; it completes the working-kit of Maintenance staff or Service-people.   (note: patent-pending; Dt. Patent- und Markenamt)

Highest competence in Consulting-, Engineering- and Productinnovations from IVEMA-Fahrleitungsbau GmbH .

klick here for video # 01

klick here for video # 02

Der Beitrag Practical accessory for Earthing rods erschien zuerst auf Ivema-Fahrleitungsbau.

Similar to Tramway-networks the maintenance-staff has to measure the absence of dangerous Voltages and circuit the +/- poles to make sure that nobody (manually or automatically) could Switch-On the Voltage to the Overheadline.  The same is a basic rule in case of havaries in case of accidents- or environmental disaster (then very important for fireworkers who are doing their job).

1. Our especially for TB-operations developed Voltagetester with an acoustic and red/green-optical feedback stands for a comfortable, safe and quick Voltage-Test.

2. With our Telescopic earthing rods, especially the wireclamps, and the short-circuit-cable makes it safe against a turn-back-on risk.

Both equipments are available in the short variant with a Transportlength of 1,30m only, and are transportable easily in a trunk of a small motorcar.

Selfevident conform to the relevant norms, highly user-friendly and with robust and highquality GRP-tubes and high power lockdevices at the tube transitions.

These both Safety elements are a well worldwide UNIQUE unit!

Highest competence in Consulting-, Engineering- and Productinnovations from IVEMA-Fahrleitungsbau GmbH .

Der Beitrag Safety at work for TROLLEYBUS-Systems erschien zuerst auf Ivema-Fahrleitungsbau.

Actually maintenance vehicles become smaller and smaller due to permanent cost reductions, and thus become very inconveniend for transport of tools and materials.  Who doesn´t know that, when the telescopic rod is placed transversely in the vehicle interior, that it cause a max-disturbation and is visible for thieves also.

With this brandnew Innovation the problem doesn´t exist anymore. The earthing equipment can be transported in the trunk of a small car, due to it´s Transportlength of only 1,30m.
And in combination with our 1,30m short Voltagetester it becomes a perfect Maintenance unit!

Selfevident high user-friendly, with robust and highquality GRP-tubes and high power lockdevices at the tube transitions.  All add equipment which is necessary for earthing and circuit is available as well.

• Transportlength 1,30m  (in 0,10m steps up to 1,70m available)

• 4-sections GRP-Telescope

• Extended length 4,50m (version transportlength 1,30m)

• up to 1500 VDC

• EN 62193:2003 DIN VDE 0682-603:07

• Bajonet head to connect the earthing-equipment

• Add. parts like a catch hook, and many other available, as well

Highest competence in Consulting-, Engineering- and Productinnovations from IVEMA-Fahrleitungsbau GmbH .

Der Beitrag World´s shortest Telescopic Earthing Rod erschien zuerst auf Ivema-Fahrleitungsbau.

Self-evident the device will be manufactured from the same company as in past – the traditional company RT-measurements in NRW-Germany.  This Company has a history of more than 60 years, has allways demonstrated their highest quality, and is now producing exclusively for Ivema Fahrleitungsbau .

The Tester does not need any Batteries; and is today fitted with a modern and big LCD number/bargraph display. The backlight is very comfortabel by using in the dark night.  A self-testfunction is built-in also. Manufacturing is of course conform to the norm EN 61243-3.

(satement from the head of development: „new and well is allways the enemy of the good – but the „new“ must not be the better compellingly!“)

Der Beitrag TESTBALL is back again erschien zuerst auf Ivema-Fahrleitungsbau.