Arizona Low Voltage Practice case studies
Arizona Low Voltage Practice · Put your knowledge to work in context.
The Arizona Low Voltage Practice exam is a study tool for technicians who install and service the cabling and systems that run below power-distribution voltage - structured cabling, alarm and life-safety circuits, access control, surveillance, and distributed audio/video. It suits apprentices entering the trade, journeymen adding low-voltage work, and experienced installers who want a structured check before sitting a licensing or certification exam. The Arizona Low Voltage Practice case studies are 5 cases and about 3,545 words.
1Class A Loop Loading and Voltage Drop
A fire alarm contractor is installing a Class A notification appliance circuit (NAC) in a new 12,000 sq ft office building. The panel is a 24 VDC addressable system with a rated NAC output of 3 A per circuit.
803 words, about 4 min2Grounding and Bonding for a Roof-Mounted CCTV System
A security integrator is installing a 16-camera IP CCTV system on a new commercial building. The cameras are mounted on metal poles on the roof, and the cabling is run in PVC conduit to a network video recorder (NVR) in the IT room on the first floor.
702 words, about 4 min3Licensing and Scope of Work for Low Voltage Contractors
A low voltage contractor in Arizona holds a CR-67 (Low Voltage) license and is asked to install a new fire alarm system in a retail store. The contractor's scope includes pulling wire, installing devices, and connecting to the existing fire alarm control panel.
657 words, about 3 min4Data Cable Separation and EMI in a Commercial Building
A communications contractor is installing Category 6A cabling for a new office network. The cable runs are in a ceiling plenum and must pass near several sources of electromagnetic interference (EMI): a 480 V motor branch circuit, a bank of fluorescent light fixtures, and a large transformer.
635 words, about 3 min5Ohm's Law and Voltage Drop in a Long Access Control Circuit
An access control contractor is installing a new card reader and electric strike on a remote door. The access control panel is located 350 feet away from the door in a telecom room.
748 words, about 4 min