North Carolina Low Voltage Practice case studies
North Carolina Low Voltage Practice · Put your knowledge to work in context.
The North Carolina low voltage credential is a limited electrical contracting license for work on systems that carry signaling, communications, or control power rather than building mains power. It is aimed at contractors and technicians who install and service structured cabling, fire alarm and security wiring, data and audio/video distribution, and similar low-energy circuits. The North Carolina Low Voltage Practice case studies are 5 cases and about 2,720 words.
1Plenum Ceiling Retrofit with Mixed Camera and Speaker Cabling
During a tenant fit-out in Raleigh, the GC asks you to approve a 42-camera and 6-ceiling-speaker package before rough-in. The suspended ceiling cavity is the HVAC return plenum.
569 words, about 3 min2Reusing 18 AWG Cable for a 12 VDC Electric Strike
A county access-control retrofit in Charlotte reuses an existing 18 AWG stranded copper pair from the IDF to a 12 VDC electric strike. The one-way cable distance is 180 ft.
545 words, about 3 min3Telecommunications Rack Grounding with a Remote Ground Rod
A 12-story office building in Durham is adding a sixth-floor telecommunications room. The low-voltage contractor installs a 19-inch rack containing a PBX, two switches, a UPS, and a copper ground bar.
522 words, about 3 min4Adding Horn/Strobes to an Existing Fire Alarm NAC
An existing addressable fire alarm panel in a Greensboro K-8 school is being modified during a media-center renovation. The panel has one NAC rated 24 VDC, 2.0 A maximum.
571 words, about 3 min5Low-Voltage License Scope and a 120 V Receptacle on a Signed Proposal
A small North Carolina low-voltage integrator holds a low-voltage contractor license and submits a $38,500 proposal for CCTV, access control, and a new 120 V dedicated receptacle for a camera power supply at a dental office. The one-page proposal says permits included but does not identify the electrical subcontractor.
513 words, about 3 min