5 optical fibre sleeves for Swisscom
www.cablex.chcablex AG | Tannackerstrasse 7 | 3073 Gümligen |
On 8 April, cablex received a very high priority incident notification: The drilling machine of a construction company cut several optical fibre and copper cables during the course of its work. As a result of this, several thousand customers in Bulle, Rougemont, Charmey and Château-d'Œx had no access to the Internet, Swisscom TV, mobile telephony and fixed network telephony. cablex is proud of the untiring and committed work of everyone involved on site and says: "Chapeau et merci beaucoup!"
All in all, the following installations were carried out:
10 optical fibre sleeves of Swisscom (instead of 36)
2 copper sleeves
2 optical fibre sleeve for UPC Cablecom
Richard Maillard was the person who responded immediately to the major incident notification on 8 April. He immediately sent the measurement technician, Sam Renou, to the site to determine the extent of the damage. Without waiting for the final result of the analysis, and without knowing the actual personnel requirements, cablex initiated extraordinary personnel planning in view of the upcoming Easter weekend.
During the afternoon, the precise extent of the damage was determined:
In summary, it can be said that enormous damage was caused by this external influence.
The teams of cablex from French speaking Switzerland were under pressure due to the service interruption. To make matters worse, the hospital in Château-d'Œx and all emergency numbers in Vallée de la Jogne and Intyamon were also affected by the incident. Appropriate measures were initiated in these areas through increased police presence from the Vaud and Fribourg regions and a 24-hour presence in local authorities.
In order to work efficiently, Swisscom supported troubleshooting by specifying the order (according to priority 1a to 3b) in which lines were to be restored. Furthermore, on the same day, 8 April 2020, two teams of optical fibre specialists were available for preparatory work. At 8.40 a.m., the required equipment was ordered. The first three replacement cables were delivered before midnight and the last 18 arrived on site the next morning at 8.00 am.
The cable installation team laid the cables that very morning. At around 1.30 a.m., all emergency services, the Château-d'Œx hospital and mobile telephony were restored for all those affected by the incident.
The space in the shaft was limited, which meant it was not possible to install 19 optical fibre and two copper sleeves in the same shaft. For this reason (and taking into account the different network layers FTTS, FTTB, Intercentral), several cables were spliced in a single sleeve. It was therefore possible to reduce the number of sleeves.
It was also necessary to comply with the numerous protective measures in connection with Covid-19 during the repair work. The length of the cable made it possible for several splicing teams to carry out the splicing work at the same time while maintaining the safety distance.
Another challenge for Richard Maillard was to coordinate 20 employees and 20 vehicles in addition to the ten specialists already present (due to the hygiene measures prescribed by the FOPH, all cablex employees drove individually to the incident site). The ten teams took turns working until Saturday morning, 11 April, 7.00 a.m., when all of the services were fully restored.
The cablex teams on site delivered an impressive performance and completed the following work activities within 70 hours after receiving notification of the major incident:
Many thanks to everyone. It was nice to see how, even under difficult conditions due to the Corona pandemic, work was carried out safely and the disruption was resolved quickly despite the extent of the damage and the Easter Holidays.