Temperature monitoring is an important means of cable operation monitoring at home and abroad. Due to the increase of cable joint impedance, excessive cable load, aging of insulation skin or partial discharge of cable itself, temperature rise occurs on the surface of cable, smoldering occurs on the insulation layer and protective layer of cable, accompanied by the generation of heat and combustible gas, and smoke mist occurs with the further rise of temperature, which develops into fire. The distributed temperature measurement system can accurately judge the abnormality in the early stage of the accident by monitoring the temperature change of the cable in real time, give early warning in advance, accurately locate and prevent the accident before it happens

Advantages of the system:

1、Surface temperature measurement and over hot spot monitoring of power cable

2、Cable online load safety monitoring

3、Early warning of fire hazards and accurate positioning

Technical features:

1、Zone measurement: the measurement area can be arbitrarily divided in length, and some areas can be locally monitored and alarmed.

2、Alarm function: with constant temperature alarm, temperature rise alarm, fiber break alarm, device abnormal alarm and other alarm functions.

3、Alarm and zone setting: the setting of fire zone, constant temperature alarm, temperature rise alarm and the configuration of alarm output are all set by software, flexible and convenient.

Performance index:

Measuring distance  2/4/6/8/12/16/20/30/40KM

Working voltage  AC220V,50HZ or DC24V

Temperature measurement range  -70-300℃

Temperature measurement accuracy  ±0.5℃

Corresponding time  ≤6S/Channel

Spatial resolution 1M