Protection rating issues for voltage transformers and thermocouples
Thread Content
Currently, pressure transmitters and thermocouples need to be installed underground, and a certain level of protection is required. After checking available information, IP67 is the common standard (with a few models having IP68 rating, but those seem less reliable). Are there any reliable model recommendations?
There are all over the streets. If the well is not deep, why not consider installing it on top of the well? Or the Inoue pipeline.
The installation environments are different, and the required protection levels vary as well. IP68 is likely the highest level, suitable for environments where water can penetrate; if it’s only a humid environment, there’s no need to choose such a high level of protection
1. Pressure transmitters, thermocouples, and flowmeters installed underground must all have an IP68 rating； 2. It is also possible to request the design institute to design the pressure transmitter as a capillary type and the temperature sensor as an extended-type one, with the gauge being installed outside the well ； 3. Choose an IP68 rating for the flow meter ； 4. Use an extension rod with an electric actuator to place the electric actuator outside the well. Especially in areas with high groundwater levels. It is required that the civil engineering work be done properly: 1. Install leak-proof rings around pipes and manholes; 2. Use cement for backwashing at the bottom; 3. Ensure that manhole covers are above the ground level.
Thanks for the advice. It was originally agreed that the pipeline would go up to the ground surface, but when construction started it turned out that the plan had changed and it had to be installed inside a well. It’s really unacceptable; no one gave any prior notice. I guess I’ll have to change the model; I’ve already placed the order, it’s troublesome.
Underground refers to things like underground water supply wells, right? If so, such places are characterized by high humidity; water enters the casing mainly through moisture leakage, and even IP68 ratings cannot prevent moisture from entering – preventing moisture intrusion is roughly 10 times more difficult than preventing water immersion. If you run into such problems, come to me. Over the past 20 years, I’ve supplied many pressure gauges, level gauges, as well as moisture-resistant and flood-proof junction boxes for steam rooms, underground wells, and similar places
I wonder if you have seen this type of junction box before. It is used in conjunction with subterranean water supply wells as an immersion-type level gauge – it solves the problems associated with traditional junction boxes, such as terminal corrosion, oxidation of wire cores due to moisture, and water infiltration into the wires, all of which can cause malfunctions in the equipment.