Shear Pin Relay

Yes, indeed.

1. The individual(s) who carried out the design can explain the term. The description will be in a document named "Control Description", "Functional description", or "Process description", or similar. The name(s) will be on the document.
2. The individual(s) who carried out the commissioning of the equipment can also explain the term. Their testing records will be in the commissioning documentation for the equipment. The name(s) will be on the document.
3. Operatives at the pumping station or driving it remotely can also explain the term, because these individuals need to know what to do when the equipment operates. So ask them. It will also be written-up in the operating manuals for the equipment.

Alas, none of those documents can be seen from here. However, the documents are a good thing, because it means that, even in the absence of the individual(s) who wrote and use(s) them, the fresh eye on them can soon come up to speed on the contents and the meaning. Especially someone of the presumed intelligence of an Engineering undergraduate.

Good luck

<unsubscribes>

I, too, knew what shear pins (mechanical) are, but the addition of the term "relay" was a stumper. Wonderful knowledge, this. Thanks to all, again.

Learned something new today. Thanks! I'd never come across that term before.

EXCELLENT ANSWER! Thanks! I've known of mechanical shear pins most of my life, but I had not heard the term used in an electrical context.

Ditto what half of CR4 has said about your post.

Interesting topic. I learned something new (or got reminded). That is not my normal job function, but if someone mentions it during an explanation, I will immediately understand now.

Thank you Anonymous student.

I came to this discussion to read and learn because it seemed like an interesting question. I leave educated, enlightened, and, once again, delighted with the folks with whom I get to hang out on CR4. Thank you, Anonymous 1. Might you be willing to hang around, get an ID by which we can know you in future, and share the future with us? Most Anons seem to be more interested in scamming, flaming, or asking for help with home work. You, sir, or ma'am, have educated more than one today.

Hats off to you!

Jraef et al thanx. Very clear and concise.

It is sad that documentation can't be available (lost or misfiled) only 20 years after install.