A high-voltage electroscope is a tool used to check whether high-voltage lines and power equipment are charged. It is a *basic** appliance commonly used in substations.High-voltage electroscope generally uses glow as an indication signal.The new type of high-voltage electroscope also relies on audio or language as an indication.The high-voltage electroscope is composed of metal working contacts, small neon bubbles, capacitors, handles, etc.Electroscope is one of the important technical measures to ensure the safety of staff on electrical equipment with total or partial power outages.With the continuous in-depth implementation of the production and work concept of ”paying attention to** and caring for life".Based on the actual situation of our unit, our bureau has formulated stricter and more detailed regulations on electricity inspection, and has achieved good results in practical applications.The relevant regulations of our bureau for electricity inspection are now introduced as follows：

    1. The high-voltage electroscope put into use must be an electroscope that has passed the electrical test, and the high-voltage electroscope must be tested regularly to ensure its good performance.

    2. To use a high-voltage electroscope, you must wear high-voltage insulated gloves and insulated shoes, and have special supervision.

    3. Before using the electroscope, you should first check whether the electroscope is good. In addition to being effective, it should also be checked on live equipment with a voltage level that is suitable. The alarm is correct before you can go to the equipment that needs to be grounded for power verification. It is forbidden to use an electroscope with a voltage level that does not correspond to it for power verification, so as not to draw wrong judgments during on-site tests.

    4. When inspecting electricity, you must concentrate and not do things that have nothing to do with the electricity inspection, such as connecting to the machine, etc., so as to avoid false or missed inspections.

    5. The power inspection of the line should be carried out phase by phase. When the circuit breaker or isolation switch or other maintenance equipment used for the connection is inspected, the power should be checked separately on both sides of the incoming and outgoing lines.

    6. When conducting power inspections on multi-layer power lines erected in the same tower, the a priori low voltage, the a priori high voltage, the a priori lower layer, and the a priori upper layer shall be used.

    7. The power test on the capacitor bank should be carried out after the discharge is completed.

    8. During the power test, let the metal working contacts at the top of the electroscope gradually approach the charged part until the neon bubble emits light or emits light and sound alarm signals, and do not directly contact the charged part of the electrical equipment.The electroscope should not be affected by the neighboring charged body, so as to send out the wrong signal.

    9. If you need to use a ladder during power inspection, a firm ladder with insulating material should be used, and necessary anti-skid measures should be taken, and the use of metal ladders is prohibited.

    10. After the power test is completed, the grounding operation should be carried out immediately. If the power test is interrupted for any reason and the grounding is not carried out in time, the power test must be re-performed when the operation needs to continue.

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