At tunnelling sites, most attention is focused on supporting, supplying and maintaining equipment such as TBM, drill rigs and utilities, to ensure progress on the main excavation activities.

CEAR also offers smaller equipment and electrical devices that are just as important to the project, and are essential to consistent progress. For instance, JBMT-HD medium voltage junction boxes are frequently used in tunnels to conduct electricity for long segments through medium voltage cables.

CEAR manufactures medium voltage junction boxes with rated voltage between 12kV and 24kV, and other rated voltage on request. They are designed for outdoor or tunnel installations to protect live parts from direct contacts and are delivered for immediate installation, ready for use.

The JBMT-HD junction box has an octagonal shape that is designed to withstand severe mechanical use conditions and can include two or more connections via clamp cover or cable gland.

Costruzioni Elettrotecniche CEAR srl is a thirty years experienced Italian company that works in the tunnelling and construction sectors offering a complete range of products for electrical distribution, automation and auxiliary electrical equipment. Our latest experience includes an Austrian tunnelling excavation, a TBM back up substation in Switzerland, and a hydroelectric power plant in Peru. Visit www.cearsistemi.it. 21/13.