Ditek Blog

No matter what kind of business you have, it almost certainly depends on electrical power. Every organization depends on lighting, computers and telephone systems.  Manufacturing and automation rely on electronic programming, sensors, motors, and controls. Design teams count on servers and workstations to run their modeling and layout software. Retail stores use purchasing, inventory management, and point-of-sale equipment and software. Because every one of these systems is connected to electrical power, they are all subject to a range of disruptions.

Many electronic systems are in service today to improve our lives – some by protecting our safety (fire alarm systems, for example), some by facilitating transactions (such as point of sale devices, ATMs and fuel pumps), and some by providing security (including access control and video surveillance), among many others.  All of these systems have numerous factors in common. First, they all incorporate sensitive electronic processors and components that could potentially be damaged by over-voltages. Secondly, they all have cable connections between components and/or other electronic infrastructure. This makes them all vulnerable to damage – not only from electrical surges that enter from outside your building, but also those that come from within. While most savvy integrators and installers are aware that cost-effective surge protection devices are available, surge protectors are not always installed according to current best practices. One prime example of this is the failure to protect both ends of a cable or wire run.

For proper operation, install all Surge Protective Devices (SPDs) per the guidelines set forth by the manufacturer. Improperly installed devices will not perform as intended and consequently, will not protect the equipment. 

The conductor length between the SPD and the protected equipment should be a minimum of three feet in length to allow enough time for it to react. The conductors can be greater than 3 feet as long as they are isolated and are not subjected, or directly exposed to internally or externally-generated, transient voltage spikes and/or surges.

Over the years, fire alarm systems have saved countless lives in addition to protecting billions of dollars of property, equipment, and businesses of all types. High quality alarm systems have evolved to make use of sophisticated sensors, notification devices, and communication systems. They can now accurately detect fire conditions, interface with related systems such as fire doors, and alert not only building occupants, but also management, remote locations, monitoring companies, and nearby public authorities.

For residential property managers, there are only a few vital factors: rent to quiet, reliable tenants, collect the rent on time, and control expenses – particularly large, unexpected expenses. One large, unexpected expense that has caught many property managers off guard is the result of an electrical surge event, and the subsequent need to not only replace the fire alarm panel (the panel and wire may be covered by insurance, but the replacement labor often isn’t), but to also pay for a costly fire watch until the parts can be procured, installed, and re-inspected by fire marshals.

You would never come to work one day and start telling all your customers to go buy their coffee somewhere else. You would never just turn off your lottery machines and stop selling tickets for any reason. You rely on these systems to drive your revenue.

Convenience stores, truck stops, and similar businesses depend on many electrical and electronic devices, including video surveillance and security, AC power devices, point-of-sale (POS) terminals, lottery terminals, pay-at-pump machinery, and more. These devices are all at risk of damage caused by electrical surges – not only from the large, noticeable surges, but also from the many smaller surges that normally pass by unnoticed. Large surges caused by nearby lightning strikes and other dramatic events are an obvious hazard, but even the smaller daily surges have a cumulative damaging effect that can decrease device reliability and shorten equipment life. This is a particular concern for convenience store operations because electrical devices are usually installed both indoors and outdoors.

When a concerned mother came to her daughter’s school to review surveillance video that would confirm or dispel her fears about whether her daughter might have been harmed at school, she was told the video had been deleted in a “freak accident” according to a news story in Delaware Online. School staff reported that there had been a power surge in the days just after the alleged incident that wiped data from the hard drive of the school’s surveillance system. Months later, even after enlisting the help of the security company that had sold the system to the school, officials were still unable to produce the video or determine if it would ever be possible to do so.