KEN KIRSCHENBAUM, ESQ ALARM - SECURITY INDUSTRY LEGAL EMAIL NEWSLETTER / THE ALARM EXCHANGE You can read all of our articles on our website. Having trouble getting our emails? Change your spam controls and whitelist ken@kirschenbaumesq.com ****************************** Comments on Tying a knot / Surge Protection - Comment on Liability issues Regarding Fire Alarm Panels / ISC Meetings Schedule Now October 31, 2024 ************************* Time is running out. We will soon be closing the meeting time opportunities. Schedule your free private meeting with KK at ISC East No "last minute" meetings will be scheduled. *************************** If you're interested in a private [yes, it's free] meeting at ISC East [we will be meeting just outside the exhibit hall] please contact Stacy Spector,Esq at 516 747 6700 x 304 or SSpector@Kirschenbaumesq.com. Concierge Clients will have priority. *************************** Comments on Tying a knot - Comment on Liability issues Regarding Fire Alarm Panels from article on October 24, 2024 *************************** Ken Tying a knot in a cable does increase the impedance of the circuit, providing some additional (small) amount of protection from surges and lightning, but not as effective as a properly grounded and bonded surge protector. I can remember back in the days of rooftop TV antennas, installers tied knots in the twin-lead (that 2 conductor 300 ohm flat wire) where it entered the apartment from the rooftop antenna. Can I quantify how much protection a knot provides vs. a surge protector on the AC, NAC and SLC circuits? No I cannot. Use proper protection in all the things you do. Joseph Hayes, SET joseph@firealarmdesign.net ************************* Ken I had a $23000 alarm net repeater that was hit lightning will only run in a straight line not in a circle. Lee Rupley military sop ************************ Ken The concept of tying a knot came many years ago with exterior siren speakers. A speaker and a microphone are basically the same thing only one is to catch sound and the other is to broadcast. When there was a very loud lightning (thunder) strike close to a siren speaker, it would produce high current through the speaker and blow out the panel which was remote of the speaker. We discovered that if we tied 7 knots in the siren feed wire, right at the siren, the electrons seemed to slow while traveling through the loop to loop and then dissipate to a level that would not damage the panel by the time they arrived. May seem to strange but it worked. It was used only with remote sirens which aren't used often any more with the all-in-one systems. We still use them in residential systems and they are probably more important than they were with old standard systems. Stan Corn Alarms, Inc ************************* Ken Lightning does not make 90° turns Mike Ski **************************** Ken, To answer Larry Dove's comment about tying knots in wires can only be answered by professionals in this industry with 40 plus years of experience and those same professionals that have experienced lighting strikes that blowout control panels and communicator / transmitters (POTS or RF) Larry will need to understand the characteristics of extraneous or unwanted currents on a wire, electromagnetic interference and why we used to use Ferrite beads or rings and why when using RU-8 or 58 coaxial we would never coil the excess cable up to make it look nice. This standard understanding of protecting our equipment was required long before the manufacturers stepped up their game in product design to help the industry avoid these attacks from unwanted and uncontrollable elements in the systems environment. Bart A. Didden President U.S.A. Central Station Alarm Corp. Port Chester, NY Milford, CT St. Paul, MN Pasco, WA 877-872-1266 ************************** Ken I know Larry Dove from WV. Yes, typing knots (loose ones) in wires supposedly helps defeat lightning. I defer to "Dr LIghtning" John Pecore. He knows more about electrical surge protection than anyone on the planet. His phone numbers are 727-823-6100 office, 727-481-6210 cell, or jpecore@earthlink.net or storminprotection@hotmail.com. David Watkins ************************** Ken The man to talk to about this is John Pecore of Stormin Protection. Daniel L. Miller, SET VP - Engineering AM Fire & Electronic Services, Inc. Las Vegas, NV 89144 ************************** Comment on Surge Protection - Comment on Liability issues Regarding Fire Alarm Panels from article on October 22, 2024 ************************** Ken Worth noting that the 2023 NEC requires surge suppression for fire alarm system control panels, unless there is a local amendment or your jurisdiction has not adopted, it is the law. See NFPA Standard # 70, 2023 ed. 760.33 Zach *************************** Response *************************** I want to thank all the experts for contributing their knowledge. Everyone should not hesitate to call these experts for advice and assistance. Again thanks to John Pecore for introducing this topic and sharing his article, which was presented on this forum in a series. I’m formulating ideas for K&K next webinar series. Anyone who wants to present should contact me. There have been changes in the last year in central station operations and our well received series on Why You Should Be Using Our Central Station is probably due for another round. Central Stations interested should contact me. Another successful series was the software vendors. Any interest in updating those presentations? There are a number of events I’ll be visiting coming up: ISC East; AIN convention in January 2025 and ISC West in April 2025. Hope to see many of you at these events. ********************* K&K Holiday Party - Save the date: December 12, 2024 ******************** STANDARD FORMS Alarm / Security / Fire and related Agreements click here: www.alarmcontracts.com *************************** CONCIERGE LAWYER SERVICE PROGRAM FOR THE ALARM INDUSTRY - You can check out the program and sign up here: https://www.kirschenbaumesq.com/page/concierge or contact our Program Coordinator Stacy Spector, Esq at 516 747 6700 x 304. *********************** ALARM ARTICLES: You can always read our Articles on our website at ww.kirschenbaumesq.com/page/alarm-articles updated daily ******************** THE ALARM EXCHANGE - the alarm industries leading classified and business exchange - updated daily ************************* Wondering how much your alarm company is worth? Click here: https://www.kirschenbaumesq.com/page/what-is-my-alarm-company-worth ****************************** Getting on our Email List / Email Articles archived: Many of you are forwarding these emails to friends or asking that others be added to the list. Sign up for our daily newsletter here: Sign Up. You can read articles and order alarm contracts on our web site www.alarmcontracts.com ************************** Ken Kirschenbaum,Esq Kirschenbaum & Kirschenbaum PC Attorneys at Law 200 Garden City Plaza Garden City, NY 11530 516 747 6700 x 301 ken@kirschenbaumesq.com www.KirschenbaumEsq.com
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