Installations

Submitted on March 26, 2021 | John Adams
Could Help Desk recommend the qualities of cable conditioners or surge arresters for an access control solution we’re planning? We have been using gear recommended by an electrical wholesaler and on a number of occasions our power supply has been...
Submitted on January 29, 2021 | John Adams
Recently SEN posted a piece on capacitive field effect sensors for perimeter solutions, which operate on the basis of tuned circuits that create resonant frequencies broken by intruders to trigger alarm events. Is it true that filters are needed to...
Submitted on October 16, 2020 | John Adams
If you find a blown fuse in a circuit or piece of equipment pay attention to the fact this represents a symptom – it’s not the cause of the problem. Blown fuses mean either a spike has been induced into...
Submitted on September 10, 2020 | John Adams
What factors do you think need to be considered when estimating the cost of installing electronic security solutions? A: Making an accurate assessment of costs for security system installation involves 4 key steps – firstly, establishing a comprehensive list of...
Submitted on March 4, 2020 | John Adams
Would you recommend using liquid electrical tape on tricky connections and terminations, or is heat shrink the better way to go? A: Tend to think that if an installation is so tricky there’s not room for heat shrink then it...
Submitted on July 18, 2019 | John Adams
We had a nasty experience with an extension cord recently – one of our techs melted it after mistaking wattage for amperage – is there a simple equation when stepping between the 2 measurements? A: To calculate amps you divide...
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