I constantly encounter job advertisements where a construction design company is looking to hire a single ELV designer to handle all their ELV works. Well, for those familiar with the industry, this simply causes a bitter smile – since there is no such magic!
This wrong perception is mainly because of a simplified comparison of ELV designs with electrical designs (maybe due to the “Extremely Low Voltage” terminology)! However, unlike electrical designs, where an electrical designer can very much do all the principle LV designs that is required for a building, in ELV we’re dealing with a very broad range of diverse technologies including but not limited to data, telephony, CCTV, ACS (Access Control System), PAGA (Public Alert and General Alarm), Fire Alarm, IDS (Intrusion Detection System), television systems, audio / video solution, and home automation.
Expecting a single engineer being able to properly cover all these technologies is like referring to the same doctor as your Dentist, Allergist, Physiologist, Psychiatrist and Cardiologist!
Proper ELV design calls for a team of designers who cover all the needed expertise to enable them to provide an appropriate solution through combined effort and teamwork. The actual number of designers in the team and their expertise is of course dependent on the complexity and scale of the project. However even for smallest solutions, below are the key members of an ELV design team: