Series of Posts on Preventing Common Problems in Instrument Installation (VI)
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Series of Posts on Preventing Common Problems in Instrument Installation (VI): We invite fellow enthusiasts to actively participate in the discussions on these issues. Constructive suggestions will be rewarded generously; having relevant images will earn additional points as a bonus. By sharing such problems and their solutions, we can avoid similar issues arising in future installations and create a favorable environment for maintenance work. Thank you! Common problems in the installation of conduit pipes: 6. There are defects such as incomplete welding, undercutting, and pores in the welding of conduit pipe supports. After welding, the slag is not removed, rust is not cleaned off, and painting is not applied; stainless steel welds are not treated with acid paste. Analysis and prevention: Conduit pipe supports should be welded in accordance with requirements. The slag must be removed promptly after welding, the supports need to have their rust cleaned off before applying primer and then topcoat, and stainless steel welds require proper treatment.
It’s all tears – water got into the wire ducts, and there are holes everywhere.
It’s all due to poor management that causes these problems
It’s not important if water gets into the wire conduit; what matters is that the instruments must not get wet!
Is the sealed gland just for show? :lol
The reason is that, for the sake of convenience and speed during installation, the sealing rubber ring of the gland was discarded, which allows rainwater to flow directly into the instrument through the pipes.
No water is wasted at all, which is great:lol
Avoid running wires at the bottom of the cable tray; use tape for sealing any areas with threaded connections. When designing the installation of instruments, ensure that their wire inlets are located at the bottom. When connecting explosion-proof hoses to the instrument interfaces, gaskets and seals are essential, and explosion-proof putty should be used to seal important internal areas.
The wire conduit to the instrument inlet uses a disconnectable connection; the inlet flanges are specified according to explosion-proof or protective requirements, with the inlet facing downward or horizontally. Leave a section of cable at the inlet and at the outlet of the conduit, bending the cable so that its lowest point is below the instrument wiring connection.