KR100493244B1 - Leakage detection and repair mathode for road lamp line - Google Patents

Abstract

The present invention relates to a method for detecting and repairing a short circuit of a street light line, which detects a short circuit of a street light line in advance with a detector to quickly repair the line.

The method for detecting and repairing a short circuit of a street light line applied to the present invention is a method of detecting a short circuit state of a street light line by using a detector equipped with a transmitter and a receiver. A preparatory step of connecting the wire to the earth ground wire and the other one wire to the line, adjusting the output of the transmitter to 5 in the range of 0 to 10, and adjusting the sensitivity of the receiver to 5 in the range of 0 to 10; Maintain the receiver antenna rod at intervals of about 10cm above the ground, and detect the buried line, and if the level of the receiver's beep (beep) and the level "5" are maintained on the instrument, the earth leakage point is completely reached. A detection step in which the sound of the dial tone is completely extinguished, and the level of the instrument is displayed as "0" so that a leak point is captured; And excavate about 1m by 50cm before and after the leakage point, visually check the damage state of the corrugated pipe and wire, wipe off the damaged wire sheath with a dry cloth, and remove the damaged wire sheath from the damaged part. Before and after, peel off about 10cm by 5cm, completely remove bare wires and wires with a dry cloth to remove any foreign matter, completely remove moisture while heating it with a torch lamp flame, and thoroughly remove the third foreign matter and moisture again with a dry cloth. Remove, cut the waterproof pad to twice the size of the damaged area, tape the adhesive surface like wire covering, tape the waterproof pad area more than 3 times with vinyl tape, tap the water more than 3 times with rubber insulation tape, and receiver antenna before returning To check if the leakage test is at normal level, and check the insulation state with the mega test at the flasher. Cut and, when the maintenance method comprising isolated in good condition and hold the corrugated pipe (PVC pipe) of the wire sufficiently larger than the wire length conservative replacement by new corrugated pipe, and to ask taping process the corrugated pipe joint portion of a rubber tape, and the operation being performed; The present invention relates to a short-circuit detection and repair method for a street light line.

Therefore, the present invention accurately detects the short circuit of the track in advance within the shortest time by using the detector, thereby repairing only the shorted track so that the construction cost is low and the street lamp can be efficiently managed. In addition, by using a detector for advertisements, signs, and temporary electrical installations of large construction sites during frequent rainfalls during the summer, it is possible to prevent loss of life due to fire.

Description

LEAKAGE DETECTION AND REPAIR MATHODE FOR ROAD LAMP LINE}

The present invention relates to a method of detecting and repairing a short circuit of a street light line, and more particularly, to a method of detecting and repairing a short circuit of a street light line by accurately detecting a short circuit of a street light line with a line detector. The short circuit of the streetlight line was detected by mega tester and only grounding was found.

In addition, the point of leakage could not be detected, and the line was completely blocked for each section, and the separated section was measured with a mega tester to check the leakage of the section.In the past, all conduits and wires of the section were replaced by a repair method. Inevitably, it took a lot of time, disrupted roads and sidewalks, and required a large budget for construction costs.

In order to solve the above problems, an object of the present invention is to accurately detect an electric leak point in a short time using a line detector, and to quickly repair only an electric leak line according to the detection.

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1. Summary of the Invention A method of detecting a short circuit condition of a street lamp line using a detector equipped with a transmitter and a receiver, wherein the ground lead is connected to one ground line of the transmitter lead of the ground fault detector to a ground line The wire is connected to the line, and the output of the transmitter is adjusted to 5 in the range of 0 to 10, and the preparation step of adjusting the sensitivity of the receiver to 5 in the range of 0 to 10; maintaining the receiver antenna rod about 10 cm above ground If the level of “5” is maintained on the receiver and the instrument is detected, it is not a short circuit. When the underground point is completely reached, the sound of the dial tone disappears completely. A detection step in which a leak level is captured by indicating a level level of "0"; And excavate about 1m by 50cm before and after the leakage point, visually check the damage state of the corrugated pipe and wire, wipe off the damaged wire sheath with a dry cloth, and remove the damaged wire sheath from the damaged part. Before and after, peel off about 10cm by 5cm, completely remove bare wires and wires with a dry cloth to remove any foreign matter, completely remove moisture while heating it with a torch lamp flame, and thoroughly remove the third foreign matter and moisture again with a dry cloth. Remove, cut the waterproof pad to twice the size of the damaged area, tape the adhesive surface like wire covering, tape the waterproof pad area more than 3 times with vinyl tape, tap the water more than 3 times with rubber insulation tape, and receiver antenna before returning To check if the leakage test is at normal level, and check the insulation state with the mega test at the flasher. Cut and, when the maintenance method comprising isolated in good condition and hold the corrugated pipe (PVC pipe) of the wire sufficiently larger than the wire length conservative replacement by new corrugated pipe, and to ask taping process the corrugated pipe joint portion of a rubber tape, and the operation being performed; The present invention relates to a ground fault detection and repair method for a street light line. The present invention provides a method for continuously detecting a ground fault of a underground line as well as a ground line detector receiver in the direction of a track from the ground. When the earth leakage point is reached, a signal (at this time, a "beep to sound" is generated and the analog instrument indicates "0"). Is indicated differently so that an accurate earth leakage point can be detected. The underground line found at the ground-breaking point is simply broken down by 1m by hand (typically 40-60cm in depth) to visually check the breakage of the wire and insulate it with a special waterproof pad. As it is completely repaired without interrupting short time, low construction cost and traffic, it maintains safe street light management. DETAILED DESCRIPTION OF EMBODIMENT OF THE INVENTION The short-circuit detection and repair method of the street lamp line applied to this invention is demonstrated with reference to FIG. 1 thru | or FIG. It is mentioned that it is largely included in the preparation stage, detection stage, and maintenance stage.

<Preparation Step>: See FIGS. 1 and 2

1. Check that the main power breaker is OFF.

2. Check the ground wire of the street lamp flasher box and test the earth and ground resistance by using the tester. If there is no ground wire or more than 100Ω, connect the prepared ground rod to earth and check if it is kept below 100Ω.

3. The street lamp track is divided into left and right sides of the flasher box and consists of two tracks each for one way.

4. Check if the line is grounded by mega tester.

5. Check each line and record the insulation resistance.

6. If a leakage line is found, measure the leakage current, record the leakage current, and mark the line.

7. Connect one lead of the earth leakage detector's lead to the earth ground and connect the other lead to the ground.

8. Adjust the transmitter output to 5 within the range of 0 to 10.

9. Adjust the sensitivity of the receiver to 5 within the range of 0 to 10.

10. Find the direction by detecting left and right of flasher box with antenna rod of receiver.

<Detection step>: See FIG.

1. Advance the receiver antenna rod about 10cm above ground according to the determined direction. Verify that the receiver beeps (beep) and the level "5" is maintained on the instrument. Continue to the end of the streetlight in the control box.

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4. Approaching the ground fault point, the tone of the dial tone decreases and the instrument level begins to drop from "5".

5. When the earth leakage point is completely reached, the sound of the dial tone is completely extinguished. If the instrument's level is “0”, the earth point is captured.

6. There is no beep sound and the level on the instrument keeps showing "0" when the circuit is over.

7 . Return and recheck the leakage point and accurately detect the leakage point within 50cm before and after the leakage point. In other words, it checks whether the ring tone is stopped and the reception sensitivity is " 0 "

8. Dig down the tracks buried in the ground and visually check for damage. At this time, the leakage point at the time of digging the line has the accuracy within ± 30cm.

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<Repair Step>: See FIG. 4 and FIG.

1. Excavate about 1m each with 50cm before and after the battery point.

2. Remove obstructions about 30cm from the center of the track so that the track is completely separated from the surrounding soil.

3. Visually check for damage to the corrugated pipes and wires.

4. Wipe the wire sheath clean with a dry cloth.

5. Peel off the damaged wire sheath about 10cm by 5cm before and after the damaged part.

6. Remove bare wires and wire sheaths (which serve as a type of cable) completely with a dry cloth to ensure no debris.

7. Completely remove moisture by heating moderately with torch lamp flame.

8. Remove all foreign matter and moisture again with a dry cloth.

9. Cut the waterproof pads (water ingress protection and moisture protection in the atmosphere) twice the size of the damaged area and tape the adhesive side like a wire sheath (overlap at least twice, ie double coat).

10. Apply pressure on both ends of the adhesive surface and the seal by hand to ensure complete contact.

11. Tap the waterproof pad area three or more times with vinyl tape (protect the waterproof pad).

12. Taping with rubber tape (a type of external impact protection material).

13. Verify that the ground fault test is normal with the receiver antenna before asking back.

14. Check the insulation with a mega test in the flasher.

15. If the insulation is good, replace the corrugated pipe (PVC conduit) of the cable with a new corrugated pipe long enough to repair the cable.

16. Tape corrugated pipe joints with rubber tape.

17. Perform a back-up operation to complete the repair work. The following describes the method of detecting by the track detector applied to the present invention in more detail as follows. In case of measuring the depth of the buried material, tilt the receiver at 45 ° angle and estimate the depth as far as the distance from the track. .One. Underground of the street lamp underneath the protective shield of the steel street lamp, the dial tone disappears and the level on the instrument appears as "0" can be mistaken for a short circuit point. After passing through the street lights, a beep will sound again, and if the instrument level returns to the "5" level, you will know that it is not an earth leakage point. If there is no beeping sound and the instrument level is "0" even if you measure past the street lamp, you can see that the inside of the street lamp is a leakage point. Separate the ballast input 1 of the line. 5. Since there may be two or more leak points, repair the leak points and recheck the insulation status of the entire line after completion. If there is a leak condition, detect and repair the remaining sections in the same way. In the grounded state, not the complete leakage state, the tone and reception sensitivity decreases in proportion to the grounded state level. The detector can detect a depth of up to 1.5 m underground. Thus, the present invention is a street lamp and its ground. Since underground lines are installed along the road surface where people and vehicles frequently travel, the earth leakage line can be repaired quickly by detecting the line leakage and the possibility of a short circuit in advance with the detector, and the low pressure can be applied by applying this method. In addition, the new method of the present invention can change the insulation resistance value due to the environment of the ground surface (footpath block, cement, asphalt pavement), seasonal dry season and rainy season, and anticipated leakage during rainfall. The breaker's operability can be quantified to prioritize planned maintenance, and the insulation resistance and leakage current levels can be recorded and stored for each line of the automatic control box to establish a long-term maintenance plan according to the change in insulation resistance value. This prevents accidental power outages and maintains safe street light management in the long run.

As described above, the present invention uses a detector to accurately detect a short circuit in a short time in advance within the shortest time, thereby repairing only a shorted track so that construction cost is low and efficient management of a street lamp is possible. In case of frequent rainfall during the summer season, it is possible to prevent the loss of life due to fire by using a detector for advertisements, billboards, and temporary electrical installations of large construction sites.

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1 is an installation diagram for detecting a short-circuit point of a street lamp line applied to the present invention.

Figure 2 is a flow chart of the preparation step in the short-circuit detection and repair method of the street lamp line applied to the present invention.

Figure 3 is a flow chart of the detection step in the short-circuit detection and repair method of the street lamp line applied to the present invention.

4 is an installation diagram of an earth leakage point waterproof insulation treatment of a line applied to the present invention.

5 is a flowchart of a repair step in a method for detecting and repairing a short circuit of a street light line applied to the present invention.

<Description of the code | symbol about the principal part of drawing>

01: street light flasher 02: street light

03: transmitter of detector 04: receiver of detector

05: ground rod 06: corrugated pipe

07: waterproof pad 08: vinyl tape

09: rubber tape

Claims (3)

delete In the earth leakage detection and repair method for detecting the leakage by the sensor if the specified range to detect a short range to detect the short-circuit state of the street lamp line using a detector equipped with a transmitter and a receiver, Connect one line of the earth leakage detector's transmitter lead to the earth ground line, and connect the other 1 line to the line, and adjust the output of the transmitter to 5 within the range of 0 to 10, and set the receiver's sensitivity to 0. Preparing to adjust to 5 in the range of ˜10; Maintain the receiver antenna rod at intervals of about 10cm above the ground, and detect the buried line, and if the level of the receiver's beep (beep) and the level "5" are maintained on the instrument, the earth leakage point is completely reached. A detection step in which the sound of the dial tone is completely extinguished, and the level of the instrument is displayed as "0" so that a leak point is captured; And Excavate about 50m before and after about 50cm around the leakage point, visually check the damage state of the corrugated pipe and wire, wipe off the damaged wire sheath with a dry cloth, and transfer the damaged wire sheath from the damaged part. After peeling off 5cm by 10cm, remove the bare wire and wire cover completely with a dry cloth to remove any foreign substances, completely remove moisture while heating with a torch lamp flame, and remove the third foreign matter and moisture again with a dry cloth. Cut the waterproof pad to twice the size of the damaged area and tape the adhesive surface like a wire covering, tap the waterproof pad area more than 3 times with vinyl tape, tap the water more than 3 times with rubber insulation tape, and return to the receiver antenna Check if the leakage test is normal and check the insulation status by mega test in the flasher box. And, when the insulation is in good condition to ask hold the corrugated pipe (PVC pipe) of the wire sufficiently larger than the wire length conservative replacement by new corrugated pipe and a corrugated pipe seam taping process part of a rubber tape, and being maintenance step of performing work; Earth leakage detection and repair method of the street light line, characterized in that consisting of. delete