For a fiber optic link to work, all fibers need to be connected properly—otherwise known as polarity. That sounds simple, but it can become complicated, depending on the components you use. How well do you understand polarity?

Do you know the National Electrical Code requirements for equipment? Use this quiz to test your knowledge.

How well do you understand the requirements for supervising station alarm systems based on the 2019 NFPA 72? Take this quiz and test your knowledge.

Fiber optic cable’s purpose is to protect the fibers during its installation and lifetime. Some modern cable designs have evolved to include more fibers in smaller cables that require more care in handling during installation. What’s changing with these new cables?

August, September and October are the most notorious months of hurricane season. While hurricane season runs from June 1 to Nov. 30, the peak each year typically occurs around Labor Day. What precautions should you consider when a storm is approaching? Remember, if ordered by authorities to evacuate, follow those directions to protect yourself from what could be the devastating effects of wind, rain and flooding.

Safety professionals must be familiar with many standards and regulations that have been developed in the United States and internationally. ISO 45001 and ISO 45003 are two international standards that provide guidance for use and implementation of Occupational Health and Safety Management Systems. While many of the principles and characteristics of the various standards developed for safety have common themes, it is important to review all guidelines and standards to determine what is most appropriate for your employer to implement.

Chapter 6 of the National Electrical Code covers special equipment. Article 645 specifically addresses electrical installations in IT rooms. For the provisions of Article 645 to be applied to an IT room, all specific requirements in Section 645.4 must be met. Otherwise, the electrical installation in the room shall comply with the general NEC requirements in chapters 1–4.

How well do you know the latest requirements for fire alarm circuits and pathways? Test your knowledge on the 2022 NFPA 72.

Almost since the beginning, fiber optic cables for outside plant installation have been mostly loose tube cables with a few ribbon designs. But cable designs and how they are installed are changing. How well have you been keeping up with fiber optic cable technology changes?

Chapter 7 of the National Electrical Code is about special conditions, such as emergency systems, energy storage systems, on-site power generation and more. How well do you know the installation requirements for these systems?

How well do you know the inspection, testing and maintenance requirements of NFPA 72? Some have changed in recent editions. Take this quiz to test your knowledge.

The term “certification” is used often in the workplace, especially with technology. What does certification mean, and who does the certifying? When is it required? How well do you understand certification? Take this quiz and get certified (just kidding!).

May is Electrical Safety Month and when we recognize Construction Safety Week and OSHA’s Stand-Down to Prevent Falls in Construction. Everyone should practice electrical safety year-round, at home and in the workplace.

As we enter into the summer months when temperatures and humidity begin to rise and severe weather pops up unexpectedly, workers need to prepare for these possibilities. With heat regulations possible in the future and new enforcement programs being implemented, employers must train all workers, take every precaution and ensure workers get the water, rest and shade they need while on the job and adjusting to new working environments.

How well do you know fire alarm basics? Test your knowledge with this quiz based on the 2022 edition of NFPA 72.

This quiz tests your knowledge on Article 430, Motors, Motor Circuits and Controllers, and adjacent articles.

Tales of the undead are not limited to B movies and long-running TV series. Some cabling tech just never seems to die, or comes back from the dead. How well do you know these zombies? 

Test your knowledge on conductor and branch circuit requirements in the National Electrical Code.

OSHA released its top 10 most frequently cited workplace safety standards for 2022. This quiz asks a question about each topic. How much do you know?

Emergency control function interfaces enable fire alarm systems and other building systems to communicate during a fire. Take this quiz to see how much you know.