Low Voltage Distribution Line in Enclosed Tubing

LOW VOLTAGE DISTRIBUTION LINE IN ENCLOSED TUBING UNDER SIDEWALK, FORMED BY 4 SINGLE-CORE RV CABLES, WITH ALUMINUM CONDUCTOR, 50 MM² SECTION, ASSIGNED VOLTAGE 0.6/1 kV; TWO DOUBLE-WALLED POLYETHYLENE PROTECTIVE TUBES, 160 MM DIAMETER, COMPRESSIVE STRENGTH GREATER THAN 250 N, SUPPLIED IN ROLL, PLACED ON 5 CM THICK COMPACTED AND LEVELLED SAND BED, COMPACTED SIDE FILLING TO THE KIDNEYS AND LATER FILLING WITH THE SAME SAND TO 10 CM ABOVE THE UPPER GENERATOR OF THE PIPE; AND TELECOMMUNICATIONS TUBING COMPOSED OF HIGH-DENSITY POLYETHYLENE TETRATUBE (PEAD/HDPE) FREE FROM HALOGENS, GREEN COLOR, 4X40 MM NOMINAL DIAMETER AND 3 MM THICKNESS FORMED BY FOUR EQUAL TUBES, JOINED TOGETHER, WITH THE INNER WALL STRIATED LONGITUDINALLY AND COATED WITH SILICONE. INCLUDING GUIDEWIRE AND SIGNAL TAPE.