Is it still necessary to apply anti-corrosion treatment to the buried part of galvanized steel pipes in electrical installations?
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The buried part of ordinary steel pipes must be protected against corrosion; galvanized steel pipes already have anti-corrosion properties, so it should not be necessary to take additional measures! Is there any explicit regulation?
No matter how good the anti-corrosion measures are, rust will still occur; this is true even for stainless steel. Given that the material is buried underground, no further anti-corrosion treatment is usually necessary, with at most some treatment applied to the flared area, as that is where processing has the greatest impact on the degree of hot-dip galvanizing