From: james.k.keating**At_Symbol_Here**GMAIL.COM
Subject: Re: [DCHAS-L] Article
Date: Mon, 24 Jan 2022 09:28:59 -0500
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: 019a01d8112e$baa2d130$2fe87390$**At_Symbol_Here**gmail.com
In-Reply-To <003f01d81059$4f438b30$edcaa190$**At_Symbol_Here**verizon.net>


Richard,

 

You are correct. The Three Mile Nuclear Plant melt down disaster is an example of alarm versus interlock problems. Moreover, the three-mile scenario included a serious interlock initiation that was overridden by the Senior Reactor Operator (Shift Supervisor) on shift.

 

The same scenario repeated itself I years later at the Christal River Plant and operations did not override the emergency automatic functions. This resulted in a very minor inconvenience and restart later.

 

Jim Keating

 

From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> On Behalf Of Richard Palluzi
Sent: Sunday, January 23, 2022 8:01 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Article

 

Some of the membership may be interested in my latest article:

 

Alarms versus Automatic Interlocks in Research Units

https://www.linkedin.com/pulse/alarms-versus-automatic-interlocks-research-units-richard-palluzi

 

Richard Palluzi

PE, CSP,FAIChE

 

Pilot plant and laboratory consulting, safety, design, reviews, and training

www.linkedin.com/in/richardppalluzillc/

 

Richard P Palluzi LLC

72 Summit Drive

Basking Ridge, NJ 07920

rpalluzi**At_Symbol_Here**verizon.net

908-285-3782

 

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