SIQ conducts independent external quality control of materials and equipment, primarily in the energy sector of electric traction systems. The energy components of electric traction systems include the overhead contact line, traction power substations with supply lines and cables, and the remote control system.

We provide professional support and technical assistance already at the planning and production stages, helping to prevent potential complications during installation and operation throughout the entire lifecycle.

External quality control enables the client to install materials and equipment in compliance with the requirements of tender or project documentation, laws, standards, and regulations. The timely inclusion of our service ensures the highest level of safety and reliability for the entire electric traction system, down to its smallest components.