1. The inspection of high-voltage equipment must be reported in advance, and must be approved by the value of the value before proceeding.
2. The inspection of high-voltage equipment must strictly implement the work ticket system, and fill in the first and second work tickets according to the actual work needs.
3. The power failure of high-voltage equipment must strictly implement the operating ticket system. Pull the high-voltage switch with the insulating rod and the transmission mechanism. Wear insulated gloves. After cutting off the power supply, lock or hang the nameplate on the operating handle.
4. When inspecting electricity, you must wear insulated gloves, wear insulated shoes, use the electroscope according to the voltage level, and check the electricity on each side or line of each side of the equipment.
5. After verifying that the equipment or line has no voltage, the maintenance equipment or line can be short-circuited to ground.
6. Install the grounding wire, which should be carried out by two people, first connected to the grounding end, followed by the wire end. The order of removal is reversed. When disconnecting, wear protective equipment.
7. The grounding wire should use multiple strands of soft bare copper wire and special wire clamp with a section of not less than 25mm2. It is strictly forbidden to use the winding method to short-circuit the ground.
8. When part of the power outage work, the human body and the live part should be kept at a safe distance. The shelter should be installed. The temporary blockage and the live part should be kept at a distance of 1.5m (110KV) and 0.7m (6KV), and the suspension should be suspended. "warning sign.
9. Regardless of whether the on-site power distribution and high-voltage equipment is energized or not, the maintenance personnel must not go over the barriers to work.
10. Items removed during maintenance should be placed in order, and it is forbidden to throw things away.
11. After the overhaul is completed, it is necessary to check the public tools and personal tools. After a thorough inspection, the temporary short-circuit grounding wire can be removed.
12. Report the inspection results to a long value and make a maintenance record.
The short wave pass filter is a cut-off filter in the interference filter. The cut-off filter is divided into long wave pass filter and short wave pass filter, that is, the beam in a certain wavelength range is required to be transmitted, and the beam deviating from this wavelength changes to cut-off, Usually, we call the filter in the reflection (cut-off) short wave area and transmission long wave area as long wave pass filter. On the contrary, the short wave direction is transmitted, while the long wave direction is cut-off. What plays the role of isolating long waves is called short wave pass filter.
short wave pass filter
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