Work element #31011, "Basic Metric Units and Conversions," is mandatory for certification at Levels II, III and IV. All other Level I General Core Work Elements constitute a mandatory requirement for achieving certification at Levels III and IV.
Understand the wiring requirements and protection of wiring for fire alarm systems. Select outlet and junction boxes, cable and conduit. Calculate proper wire size, and overcurrent protection for the system. (NFPA 70 (National Electric Code) and 72, U. L. Electrical Construction Materials Directory)