for determining the locations of monophase damages in the reserved cable on the opened areas.

A location of damage of the monophase shorting always was an intricate problem. Search of monophase damages the known methods after a preliminary distance-finding to the place of damages (relative methods) and directly on a route induction, acoustic and on electric aerial (absolute methods) very often results in erroneous results.

After excavations (dissections of soil) very often cut a cable and by the measuring device of heterogeneity type of R5-10 check how correctly the site of damage is found. If the site of damage is found not correct, a new muff appears and, as a result, sizable financial losses.

Not cutting a cable, by the superimposed scope with 100% by a confidence and exactness ± 2 sm can confirm the rightness of location of damage. Generator with frequency 0,5-1,5 kgc by power 30 - 500 W, connect to the cable on the chart of vein-casing. Lay on a scope over the shell of cable and turn about axis on 360 degrees.

The signal of generator which has two is audible in headsets max and two min. Moving a scope along a cable and turning it about axis, determine the location, where a volume of signal will be most. After this place a signal sharply diminishes in once or twice. An area of over fall of signal is the place of damage.

Complete set includes:

• superimposed scope;
• headsets;
• cover for carrying from place to place and storage;
• instruction on exploitation.

Накладная рамка НР-08.pdf