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05/04/2019  /  Jasmin Schuoler
news

Into the world of network electricians.

The professionals of tomorrow.

The first specific inter-company course for network electricians ‑in the telecommunications sector has been completed – and cablex was once again involved. The trainees of cablex, LKW Energie and Saphir focused on copper splices and the implementation of an interlocking system. After a one-day theoretical unit, they received an assignment that they carried out in three days.

All trainees with a focus on energy, overhead lines and telecommunications jointly took on the challenge of the four four-day general industry-wide courses (Überbetriebliche Kurse/ÜK GEN 1-4) in the first year of apprenticeship for prospective network electricians (Netzelektriker EFZ). The ÜK Energy and Telecommunications (EN-TEL 1) is aimed at trainees from the areas of energy and telecommunications. This primarily deals with cable laying (pulling and blowing through cables), piping, and house connections. The last ÜK in the first year of apprenticeship is separated according to the focus area. cablex was able to accompany the learners as in the previous courses and received first insight into a specific ÜK.

The theoretical course
In turn, the three field instructors gave instruction on the following skills to the aspiring professionals:

  • Network topology of the Swisscom network,
  • CATV network topology,
  • Various types of sleeves, sleeve fixtures, and sleeve finishes,
  • Creation of terminals and house connections, and inspection of a plant including simple fault localisation.

The assignment
From the control panel (UP 111 [flush-mounted]), a copper cable (CUC 2015 Kal. 1 50E [copper cable from 2015, cable 1, 50 strands]) is routed to the sleeve via a steel tube house in-feed, which is sealed with an air cushion (sealing of a house connection). There are three types of splices to be included in the socket:

  • machine splice (module splice, modules for 10, 20, or 24 strand pairs),
  • Press-button splice with push-button connector (used for overhead lines and temporary troubleshooting),
  • Soldering splice (hand splicing by soldering the individual wires).

The three outgoing copper cables must then be connected to the terminal in the house (UP 333), to the house junction box (UP 444), and to the distribution cabinet (UP 222). The connections are then checked in the control panel, which must display no faults. Finally, the socket is closed with a shrink compound (thermal heat-shrink tubing).

Before the trainees were fully ready to have a go with the assignment, the instructor responsible for this assignment explained the upcoming work steps in detail and demonstrated the Task.

Link to the assignment for the three-day task in ÜK TEL 1.

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To the photo story of the sixth ÜK in the first year, TEL 1: Copper splices and connections.


Many thanks to the trainees and the instructors on site as well as the Course Commission of the Bern region! It was great fun to gain some insight into the ÜK for network electricians -with a focus on telecommunications.



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