 | (Is used for connection of the road searching device, protection of cable from electric fluctuations at crossing with LEP, measurement of resistance to cable isolation) |  | (For a designation of security zones, lines of the underground communications, change of a direction of a line, installation sites of connecting muffs) |  | (For a designation of security zones, lines of the underground communications, change of a direction of a line, installation sites of connecting muffs) | |
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