System for monitoring pipeline leakage, pipeline element provided with the system, and method for mounting the monitoring system onto a pipeline

A monitoring system for the identification and location of leakage of a fluid at at least one pipe joint having two abutting non-insulated pipes for fluids, the monitoring system comprising:

• at least one first detector for detecting fluid, located at a first pipe joint;
• at least one second detector for detecting fluid, located at a second pipe joint, the first detector and the second detector being connected to each other by at least one alarm cable using time-domain reflectometer, TDR, technology to detect fluid leakage at the first or the second detector;
• and
• a crimpable jacket piece forming a crimp sleeve provided locally over at least the first pipe joint, the jacket piece together with the non-insulated pipes forming a sealed space containing the first detector and the first pipe joint.