Material issue for wires used for static electricity protection across liquid ammonia pipeline valves
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If copper wire is used as the wire for static protection across the valves in liquid ammonia pipelines as required by the specifications, severe corrosion of the copper occurs due to the influence of ammonia in the surrounding environment. Can aluminum wire be used as a substitute? This post was last edited by zfk on 2007-12-18 16:53]
Yes, it’s not aluminum wire but aluminum foil that is used.
What was said on the second floor is correct; aluminum sheet can be used as a substitute (with a width of no less than 15 millimeters). This is exactly how our company handles it. Since aluminum wires are prone to breaking, aluminum foil is used to improve safety. In non-ammonia environments, copper stranded wire is generally used instead of single-strand wire.
Aluminum wire or copper wire can be used for corrosion protection
Ammonia can also corrode aluminum, right? Moreover, its electrical conductivity is not as good as that of copper wires. I think the reason for making connections in this way is to achieve better conductivity, and it also takes time for ammonia to corrode copper; indeed, if corrosion becomes severe, it’s quite simple to make new connections
Arguments in support of dsp001
Our plant uses copper wires for the bonding of gas pipelines; it seems that there is no bonding for the ammonia pipelines.