California Low Voltage Practice case studies
California Low Voltage Practice · Put your knowledge to work in context.
The California Low Voltage Practice exam is a study benchmark for technicians who install, terminate, test, and maintain the cabling and systems that sit outside the power-distribution side of electrical work - structured cabling, network infrastructure, fire alarm and life safety circuits, security, access control, CCTV, audio/video, and control wiring. It is aimed at apprentices and working installers preparing for employer screening, internal certification, or the knowledge portion of a licensing pathway, and at journey-level electricians who want to document low voltage competence. The California Low Voltage Practice case studies are 5 cases and about 3,649 words.
1Existing Conduit Fill for a Camera Retrofit
A tenant improvement adds 14 new IP cameras to a warehouse. The contractor proposes pulling four Cat6 cables (each with an outside diameter of 0.25 in.) and one 18 AWG 2-conductor 24 VAC cable (0.18 in.
796 words, about 4 min2Fire Alarm Notification Circuit Voltage Drop on a Long Horn/Strobe Run
A fire alarm contractor is finishing a new 12,000 ft² office building. The notification appliance circuit (NAC) on the first floor serves 11 horn/strobes rated at 0.115 A each at 24 VDC, plus two remote strobes at 0.075 A each.
721 words, about 4 min3Grounding and Bonding a Rooftop Antenna and Communications Rack
A low voltage contractor is installing a rooftop cellular booster antenna and a small communications rack in a single-story commercial building. The antenna mast is 12 ft tall, mounted on a steel frame on the roof.
749 words, about 4 min4Access Control Door Held Open - Fail-Safe vs. Fail-Secure Decision
A property manager for a 6-story office building is retrofitting access control on 22 tenant suite entry doors and 4 stairwell doors. The suite doors are single-leaf hollow metal doors with electric strikes in a fail-secure configuration.
697 words, about 3 min5Cat6 Permanent Link Fails After a Tight Bend Around a Structural Column
A contractor is cabling a 40-desk open office. One horizontal run from the telecommunications room (TR) to a desk crosses a corridor and must pass around a structural steel column.
686 words, about 3 min