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Flexible and robust marking with the KKS power plant identification system

Overview

Equipment marking at RWE  

Equipment marking at RWE

  • The Neurath power station is one of four power stations operated in the Rhenish lignite mining area by RWE Power AG.
  • As in all power stations, accurate and durable marking of all equipment also plays a very important role. Errors could have unforeseeable consequences here.
  • The rules for this have been defined by the KKS power plant identification system since the early 1980s. For marking, RWE Power AG uses marking solutions based on LED UV printers from Phoenix Contact.

Customer profile

RWE Power AG operates four power stations in the Rhenish lignite mining area: Frimmersdorf, Neurath, Niederaußem, and Weisweiler – with a total gross generation capacity in excess of 10 gigawatts. In 2009, work started on the modernization of the control engineering in power station units D and E in the Neurath power station in order to increase the efficiency and flexibility of the units.

Application

As the modernization of the control engineering in the Neurath power station also required the remarking of numerous master cables, the specialist department at RWE was looking for a suitable printing system that used as little energy as possible and operated quietly. In addition to the print quality, another important requirement was the defined label size, which fit the label holders already mounted in the power station unit.

The KKS power plant identification system sets out the rules governing this type of marking. It aids systems manufacturers and power station operators in the clear marking and identification of equipment. KKS identification, which consists of a 15 to 17-character alphanumeric designation, is defined in VGB guidelines B105 and B106. Based on this, all units and equipment are encrypted and marked.

Solution

KKS code with source, destination, and cable type  

KKS code with source, destination, and cable type

When looking for a suitable printing system, the specialist department at RWE initially chose the BLUEMARK LED system from Phoenix Contact. With the successor model, the BLUEMARK CLED, up to 120 labels can now be printed per hour – in an environmentally friendly manner and very quietly.

In addition to the source and the destination, the clear and unambiguous cable marking includes the KKS number and the cable type. In accordance with DIN EN 62491, all cables must be marked at both ends.

The barcode simplifies identification  

The barcode simplifies identification

All process engineering marking labels in RWE Power AG's power stations in the Rhenish lignite mining area have a barcode in addition to the KKS code and short text. This can be used within the scope of mobile maintenance for applications such as damage reports.

Given the harsh ambient conditions in a power station, high print quality and temperature resistance are absolutely crucial for permanent and durable marking.

Identification of the medium in accordance with DIN 2403  

Identification of the medium in accordance with DIN 2403

After the development work at the Neurath power station, RWE Power AG decided to also introduce the printing system at its Niederaußem and Weisweiler power stations. In addition to printers and labels, other accessories from Phoenix Contact are also used – including marker carriers, medium color coding, and mounting components.

Meanwhile, other RWE suppliers, such as Siemens AG, also rely on power plant identification solutions from Phoenix Contact.

“With the identification system from Phoenix Contact, we can quickly and flexibly mark our switchgear in accordance with RWE specifications,” explains Patrick Schmidt, Project Manager in the Power and Gas Division of Siemens AG in Essen. Siemens AG has already equipped some switchgear in the Weisweiler power station with the KKS labels from Phoenix Contact. “We also use the labels standardized by RWE for this.”

Summary

When the specialist department at RWE looks back on its marking project, the impact on costs is another positive aspect. Not least because the higher-level CLIP PROJECT software for managing printing meant that the cost of materials and labor could be reduced. The software offers open interfaces for easy data exchange with the higher-level plant documentation systems.

The topic of marking will be even more important in future due to the growing pressure on costs in the industry and the resulting increase in efficiency.

PHOENIX CONTACT Ltd

8240 Parkhill Drive
Milton, Ontario L9T 5V7
1-800-890-2820

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