Systems

 

 

Integrated electrical and low-voltage systems of all types—inside and outside a building—encompass the range of work that electrical contractors do. The articles in this section highlight different types of work, from security, fire and life safety, to traditional electrical power and distribution, to lighting, cabling and more. 

Appetite for intelligence


The simplicity and ubiquity of home automation means opportunity for ECs. For one thing, today’s systems come ready to install, and contractors can learn installations in a matter of hours rather than weeks. For many ECs, it has been a welcome transition.


Beginning with the 2010 edition of NFPA 72, National Fire Alarm and Signaling Code, all of the “styles” of circuits were deleted, and four “classes” were added. A new chapter, Circuits and Pathways, was added during the reorganization of this code.

Many designers of the notification portion of a fire alarm or mass notification system (MNS) seem unaware of the specific performance requirements for each type of appliance as required or allowed by NFPA 72 2016, National Fire Alarm and Signaling Code.

Based in San Jose, Calif., Integrated Communication Systems (ICS) has been building its success as a low-voltage integrator for 15 years. The 80-employee firm, founded in 2002 by Aaron Colton, president and CEO, serves low-voltage integration needs in San Francisco and the Bay Area.


More on Systems

 
STP vs. UTP

Money usually decides this debate One of the great debates that affects contractors—especially those dealing with communications systems—may be the question of shielded twisted pair (STP) or unshielded twisted pair (UTP).


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Cameras in the Classroom
by Staff |

School security is changing as fast as it is growing, and electrical contractors who don’t educate themselves in the latest digital video recording and imaging equipment stand likely to lose out on a lucrative market.


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Data Center Design Recommendations

Think ‘tiers’ for a standards-compliant data center It seems as if a big chunk of future contracting work will come from designing, installing and supporting data centers. There are many reasons this is being headlined in the telecommunication trades: it’s a solution to many problems.


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Lloyd Electric Connects the Nation's Airports
by Staff |

When Boeing Integrated Defense Systems was awarded the mammoth project of providing all the nation’s airports with baggage explosives screening equipment by the end of 2002, it sought partners in small and minority enterprises.


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Nonmetallic Conduit for Essential Hospital Systems

The five exceptions to providing nonflexible metal raceways Providing alternate power for essential electrical circuits in a hospital is extremely important during loss of normal power.


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A Misleading Circuit

Can a 20A receptacle be placed on a 15A circuit?


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Load-Side Grounding Connections

Picture an electrician installing a load center (technically, a panelboard) on a 120/240V AC system at a location in the building remote from the service location.


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