The Powering America Team is helping transform the Milwaukee skyline. With the new Northwestern Mutual Tower and Commons, comparisons are being drawn to another nearby metropolis more well-known for its tall buildings.
Contractors often experience some confusion over the types of circuits required and permitted for fire alarm system installations. First, contractors need to recognize that they must install all circuits as required by chapters 12 and 23 of NFPA 72 2016, National Fire Alarm and Signaling Code.
Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to email@example.com. Answers are based on the 2014 NEC.
Communications cable and 300.4(E)
Much has been said and written about analog video cameras and the move to internet protocol (IP) networked digital surveillance. Some predicted the demise of analog and takeover by IP devices would progress quickly, but clearly that hasn’t happened.
Demand for wiring and cabling is expected to grow in the months and years ahead. Low-voltage applications for light-emitting diode (LED) technology and fiber optic cabling within the power-generation and telecommunications industries will help drive this market.
Large projects require power cable pullers to get the job done quickly, efficiently and with minimal physical labor. The equipment’s basic components are the frame, power source, capstan, pulling rope and mechanism that rotates the capstan.
As I have described in the previous few columns, splicing fibers is fairly easy. If the installer cleans and cleaves the fibers properly, the machine does the rest. However, the installer’s job is not over at that point.
In the past year, fiber optics underwent some important developments, some technical and some market-related. For those of you working in fiber optic network design and installation, the changes present opportunities and challenges.
During the recent 2017 National Electrical Code (NEC) first revision meetings in Hilton Head, S.C., a number of public inputs were submitted to introduce a new cabling system into Article 725 and Article 760.
Data center connection is one of the most common uses for dark fiber, and it’s all due to growing data needs. You have probably seen graphs of the Internet’s growth and heard claims about how much data moves along it.
Some cabling industry stakeholders predict the imminent death of copper cabling, while others disagree. However, most agree that fiber optical networks are taking a large bite out of the new network market.
Working with and around electricity poses hazards that most people don’t face in their daily jobs. From apprenticeship training throughout their careers, safety training is a continual process for electricians.
Times are changing for the electrical contractor (EC). The trend even affects the basics. As Electrical Contractor focuses on the latest developments in cabling and controls, the 2014 NECA Show in Chicago, Sept.
As with any project, a communications cabling project requires comprehensive management. Project management for cabling or related networks is best understood when broken into five subtopics: Planning, Design, Installation, Testing and Operation.
A life-threatening event occurs at a large building where many people could be in danger. In this case, it is a smoky fire, but it could also be an earthquake or a mass shooting. The fire alarm system senses the fire, locates the problem, and immediately begins sending signals.