Alaska Low Voltage Practice case studies
Alaska Low Voltage Practice · Put your knowledge to work in context.
The Alaska Low Voltage Practice exam is a practice assessment for technicians who install, maintain, and troubleshoot low voltage systems in Alaska - structured cabling, fire alarm, security and access control, AV, and building automation. It is aimed at apprentices preparing for their first credential, journeyman low voltage technicians brushing up before a licensing or employer exam, and electricians extending their work into limited-energy circuits. The Alaska Low Voltage Practice case studies are 5 cases and about 3,107 words.
1Fire Alarm Circuit Loading After Tenant Fit-Out
You are the low voltage contractor for a 4-story office building. The existing addressable fire alarm control panel (FACP) is a 24 VDC system with a notification appliance circuit (NAC) rated at 3.0 A per circuit and a total panel NAC capacity of 6.0 A.
694 words, about 3 min2Sharing a Tray With Line-Voltage Conductors
You are installing a low voltage cabling system in an industrial plant. The route crosses a mechanical room where a 3-inch wireway already carries 480 V, 3-phase motor feeders.
614 words, about 3 min3Camera Drops Failing After a Long PoE Run
You are commissioning eight new IP cameras on a single-story retail building. The farthest camera is roughly 320 ft of Cat6 from the PoE switch.
635 words, about 3 min4Access Control Door Held Open by a Failing Request-to-Exit
You service a card-access door at a medical office. The door uses a maglock, a request-to-exit (REX) motion sensor, a push button, and a door position switch (DPS).
589 words, about 3 min5Grounding and Shielding on a Building Automation Bus
You are installing a BACnet MS/TP control bus (RS-485) for a rooftop unit and VAV boxes in a commercial building. The bus runs about 600 ft total, daisy-chained through 12 devices, using shielded twisted pair.
575 words, about 3 min