Surge Protection for Amusement Park Alarm Systems

Amusement Park

Today's increased reliance on very sensitive electronics makes surge protection an important topic for Amusement Park alarm systems. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.

NEC-2020 The latest release of NEC/NFPA 70 edition 2020 (NEC 2020) has placed a greater emphasis on increasing personnel safety by mandating the use of Surge Protective Devices (SPDs).

From 2014 to 2020, the number articles now requiring SPDs has increased significantly for applications ranging from Modular Data Centers, Fire Pumps, Elevators, Critical Power Systems, Dwellings (Dormitories, Homes, Hospitals, Hotels), etc. This article will focus on Critical Power Systems and how they are defined by NFPA 70 Article 708.

What are Critical Operations Power Systems (COPS)

As stated by Article 708, Critical Operations Power Systems can be classed by municipal, state, federal, or other codes by any governmental agency having jurisdiction or by facility engineering documentation establishing the necessity for such a system. These systems include but are not limited to power systems, HVAC, fire alarm, security, communications, and signaling for designated critical operations areas.

Article 708.2 further defines how the end user can identify if the system is a COPS.

CategoryArticle 708.2 Definitions
Critical Operations Power Systems (COPS)"Power systems for facilities or parts of facilities that require continuous operation for the reasons of public safety, emergency management, national security, or business continuity.”
Designated Critical Operations Areas (DCOA)"Areas within a facility or site designated as requiring critical operations power."
Supervisory Control and Data Acquisition (SCADA)"An electronic system that provides monitoring and controls for the operation of the critical operations power system. This can include the fire alarm system, security system, control of the HVAC, the start/stop/monitoring of the power supplies and electrical distribution system, annunciation and communications equipment to emergency personnel, facility occupants, and remote operators."

Recommended SPDs for Amusement Park Alarm Systems

LocationEquipmentSystemSurge Protector Model #Link
Power_supply_AB AC Incoming Power120VacDS240S-120/G
Battery Backup24Vdc DS220S-24DC DS220S-24DC
Remote- IO Cabinet InstrumentationI/O
DLA-24D3 DLA-24D3 v.2

POE Camera MJ8-POE-A MJ8-C6A
PLC PLCEthernet Ports MJ8-C6A MJ8-C6A

PLCRS-485 DLA-12D3 DLA-24D3

RadioRF Coaxial${ITEM_LINK#1314}<-No Item, #1314 P8AX09-N/FF${ITEM_LINK#1314}<-No Item, #1314 P8AX09-6G-N-FF


1NFPA 70 edition 2020, Article 670 Industrial Machinery, 670.6 Surge Protection
2NFPA 70 edition 2014, “Data Assessment for Electrical Surge Protective Devices”
3NFPA 79 edition 2018
4NFPA 79 edition 2018, Annex C, Examples of Industrial Machines Covered by NFPA 79
5ANSI C62.41, Low-Voltage AC Power Circuits
6ANSI C136.2, Roadway and Area Lighting Equipment - Dielectric Withstand and Electrical Transient
7UL8801, Outline of Investigation for Photovoltaic (PV) Luminaire Systems
8UL1598, Luminaires
9UL924, Emergency Lighting and Power Equipment
10UL1449 5th Edition, Surge Protective Devices
11UL497B, Surge Protectors for Data Lines and Fire-Alarm Circuits
12UL497E, Antenna Lead-in Conductors
13UL508, Industrial Control Equipment
14IEC 61643-11, Low-Voltage Surge Protective Devices - Part 11: Surge Protective Devices Connected To Low-Voltage Power Systems - Requirements And Test Methods
15IEC 61643-21, Low Voltage Surge Protective Devices - Part 21: Surge Protective Devices Connected To Telecommunications And Signalling Networks - Performance Requirements And Testing Methods
16IEC 61000-45, Electromagnetic Compatibility (EMC) - Part 4-5: Testing And Measurement Techniques - Surge Immunity Test
17CSA 107.1, General Use Power Supplies
18CSA 141, Emergency Lighting Equipment
19CSA 250, Luminaires
20NOM-001-SCFI, Standard for Electronic Equipment
21NOM-003-SCFI, Electrical Products - Safety Requirements
22UL 121201, UL Standard for Safety Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations

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