Electical Contractor

Equipment Warning Signs, Remote Service Disconnecting Means and More

| July 2002

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Systems

In the March 2002 issue, I reported on the activity within the Telecommunications Industry Association (TIA) to develop a cabling system in support of building-automation systems (BAS). At the time of writing that article, the document was out for industry ballot.

TIA Now Addresses Multi-Tenant Buildings

| July 2002

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Systems

CODE CITATIONS Article 110 Requirements for Electrical Installations Article 230 Services Article 240 Overcurrent Protection Article 310 Conductors for General Wiring Article 430 Motors, Motor Circuits, and Controllers Article 450 Transformers and Transformer Vaults Article 695 Fire Pumps Warning si

Branch Circuits, Grounding, Luminaires and More

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Your Business

TIA Subcommittee TR-42.3, responsible for developing recommendations for pathways and spaces, recently approved Addendum 6 to TIA/EIA-569-A, officially called ANSI/TIA/EIA-569-A-6 Multi-tenant Pathways and Spaces Addendum.

Rising to IBS Installations’ Challenges

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Systems

Article 210 Branch Circuits Article 220 Branch-Circuit, Feeder, and Service Calculations Article 230 Services Article 250 Grounding Article 404 Switches Article 410 Luminaires (Lighting Fixtures) Lampholders, and Lamps Article 445 Generators Article 702 Optional Standby Systems Volume I of the Fire

A. Lee Chichester

Firestopping Is Simple, yet Essential

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Systems

The arena of voice/data/video installations for electrical contractors can be both challenging and rewarding. The market is flowing into combining the traditional with the new in what is now being called integrated building systems (IBS) installations.

Darlene Bremer

Multimedia Cabling Demands Flexible, Creative Solutions

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Your Business

Firestopping is a simple, yet essential, part of any construction project.

Jennifer Leah Stong-Michas

Installing Smoke Detectors (Alarms)

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Systems

Multimedia applications have just taken over networks. Long gone are the days when the most taxing task for any network was moving data files through itself.

Mark C. Ode

Is FTTD Just Another False Alarm?

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Codes & Standards

Smoke detectors (alarms) are installed in single-family dwellings to provide early warning of a fire. Their installation is required by building codes in many municipalities and by many fire departments.

Claire Swedberg

| May 2002

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Systems

Well, we’ve heard it all before—fiber to the desktop (FTTD) is on its way to becoming the power source of choice. While unshielded twisted pair (UTP) cabling has been dominant, there is reason to think fiber will be a true competitor soon.

Home Networking without Retrofit

Darlene Bremer

| May 2002

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Residential

According to The Digital Domicile: The Exploding Market for Home Networking Technology and Services, a report by Cahner’s In-Stat Group, several factors are currently driving the home networking market in a positive direction.

Refrigerator Branch Circuits, Machine Tool Wiring, Foreign Piping and More

Maintenance Involves Constant Upgrades and Replacements

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Systems

CODE CITATIONS Article 110 Requirements for Electrical Installations Article 210 Branch Circuits Article 250 Grounding Article 310 Conductors for General Wiring Article 404 Switches Article 408 Switchboards and Panelboards Article 670 Industrial Machinery Branch circuit for refrigerator in dwelling

Thomas E. Glavinich

Wireless LANs: Mobility at Ethernet Speed

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Systems

Voice/data/video (VDV) cable plant has become the central nervous system of the customer’s business. It is necessary for producing and delivering your customer’s products and services.

Kellie K. Speed

Control Cables in Cable Trays

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Systems

IEEE 802.11 provides platform for new applications When the concept of the wireless local area network (LAN) was introduced more than 20 years ago, numerous companies tried to implement its applications through the use of spread spectrum, infrared and narrowband microwave technologies based on twist

Mark C. Ode

TIA Expands TIA/EIA-570-A’s Scope

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Systems

Cable trays can be a very convenient method of transporting large numbers of signaling, communications and control cables, as well as other cables, from one location in a facility to another. If cable trays are to be used, however, some specific requirements must be followed.

Review Metal-clad Cable Requirements

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Residential

Just last month I informed you of the Telecommunications Industry Association’s (TIA’s) efforts to develop a specification for Building Automation Systems (BAS) for commercial buildings.

Mark E. Battersby

TIA Adds Structure to BAS Cabling

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Systems

There are a number of changes in the 2002 National Electrical Code (NEC) regarding Metal-Clad (Type MC) Cable that should be reviewed before your next electrical project. In the 1999 NEC, Article 334 covered Type MC Cable; however, in the 2002 NEC, Type MC Cable has been relocated into Article 330.

Fire Pumps and Alarm Systems, Circuits, Services, and More

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Systems

TIA TR 41.8.1 is trying to do for building automation cabling what it did for building telecommunications cabling—add structure, standards, and guidelines.

Futureproofing Is Easier than Making Other Predictions

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Systems

CODE CITATIONS Article 100—Definitions Article 210—Branch Circuits Article 230—Services Article 695—Fire Pumps Article 725—Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits Article 760—Fire Alarm Systems Article 770—Optical Fiber Cables and Raceways Article 800—Comm

Jennifer Leah Stong-Michas