How to Ground Concrete Pole Poles More Stably and Safely

To ensure the stability of concrete utility poles, proper grounding reinforcement and electrical safety are crucial. Below, a technical expert from a concrete utility pole manufacturer will provide a detailed explanation of how to ground concrete utility poles more stably and safely.Before installing the grounding equipment, the inspection of concrete poles for electrical lines that are temporarily de-energized requires that wiremen confirm the power has been shut off before installing protective grounding. High-voltage voltmeters or other instruments are used for testing. Electricians working at height use insulated operation poles to deliver a detection device to the live wires, and high voltage can be determined by hearing sounds or observing indicators, etc.If the wireman cannot confirm that the line is safely grounded, they can connect a high-voltage voltmeter between the conductor and the grounding rod. Initially, the high-voltage voltmeter will display a voltage reading. If the voltmeter reading gradually decreases to zero, it indicates that the static charge has been grounded through the voltmeter.

Cement wire grounding wire installation

The installation procedure introduces the grounding device by using the example of grounding with wire-to-earth. After connecting one end of the grounding wire to the grounding electrode (the neutral of the distribution line, the tower, or the earth wire of the transmission line), use an insulating handle to connect the other end of the grounding wire to the wire that needs to be grounded.

2. As a backup grounding measure, drive another grounding rod into the ground at the work site and secure the grounding wire to it: then connect the other end of the grounding wire to the wire to be grounded using insulating material from the F side or from the side.

Install grounding wires or short-circuit connections between all lines to be grounded and those already grounded. To prevent arc burns on the conductors, do not ground the main conductor first, but rather install grounding on other connected parts such as the conductor equalizing rings, clamps, etc., and then ground the conductors as per regulations, followed by removing the initial grounding. The grounding device can only be removed after all work is completed; the removal procedure is carried out in the opposite order.

4. Prior to dismantling, it is essential to disconnect the grounding wire from the grounded conductor using an insulated operation rod, followed by removing the grounding wire from the grounding electrode (such as the neutral line of the power distribution circuit, steel tower, or transmission line, etc.). For auxiliary grounding, it is also necessary to first disconnect the conductor from the grounding wire before manually driving the grounding core into the ground.

5. The hydraulic motor of the engineering vehicle for the immersion device of portable or airborne vibration grounding rods is tightened.

Improperly installed grounding can be dangerous. It gives electricians a false sense of security. A good grounding should meet the following conditions: the grounding circuit resistance should be low, and the grounding rod surface must be clean and the connections secure.

7. The connection position is ideal.

8. The grounding device has sufficient current-carrying capacity. For lines with ground wire or phase wire, the ground wire or phase wire serves as a reliable grounding point, while the other grounding point is the grounding wire of the tower, along with sufficiently deep buried cables, sufficient earth contact, etc. Otherwise, it is necessary to connect a grounding rod or screw in a grounding spiral at the work site (reaching moist soil).

9. Ground resistance values and their control can be measured using a ground resistance meter. This value should not exceed the construction requirement. The ground resistance value is highly sensitive to the depth of burial of the ground rod. Our cement pole factory believes that increasing the depth of burial not only increases the effective contact area but, due to the higher moisture content in the deeper soil, it can significantly reduce the contact resistance. Additionally, several ground rods can be inserted, and when these rods are connected in parallel, it can significantly reduce the electrical resistance of the grounding device.

Two, the test of the grounding device can understand the performance of the grounding device from the test of the grounding installation.

Long-term effect of low current exchange.

2. Short-term effect of high alternating current.

3. Impulse Current. The current value during the test, the duration of power supply, voltage drop, and the durability of the device should be measured. This applies to the testing methods for grounding wire pulleys and grounding roller wheels.

Here is the relevant information brought to you by our electric pole manufacturer. For more details, please visit our website.