OSHA list of top 10 most cited safety violations for Need expert advice on the National Electrical Code? Try EC&M’s CodeWatch. Electrical Construction Maintenance Contact Us Page.

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Size your service-entrance conductors per Article Please login with your email address. To identify a service conductor, step back and see if you are dealing with a service or a load side distribution point.

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Routing The routing requirements of service conductors differ from those of other conductors. If you have an issue completing the registration process, please disable your browser’s pop-up blocker or ensure that www.

The results of that error can be expensive-rework or excess cost if you’re lucky, and catastrophic failure if you’re not. This rule does not prohibit the mixing of service, feeder, and branch-circuit conductors in the same service equipment enclosure. Raceways for overhead service drops You cannot use trees as supports Locate the service head above the point of attachment or within 2ft of the point of attachment if this isn’t practical.

Service conductors include service-entrance conductors for overhead service drop and underground service lateral.

Click here to accept cookies. And you apply different rules, depending on whether a service conductor is inside or outside a structure.

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Select a category, choose a Product Family, then select from the list of available documents. It’s often a good approach to start a service installation by deciding which conductors belong in the service. The necessary equipment, usually consisting of circuit breakers or switches and fuses and their accessories, connected to the load end of service conductors to a structure or an otherwise designated areaand intended to constitute e&m main control and cutoff of the supply.


Ensure this point is conducive to maintaining the minimum service conductor clearance required by The AS3 can be supplied with additional options to expand control, allow greater flexibility, and provide better protection for applications.

For more information about TIC, please visit www.

Entries submitted were evaluated carefully by a panel of judges comprised of experts in electrical engineering, contracting, plant facilities, and maintenance industries. If we mixed service conductors with other conductors in the same raceway, a fault that occurred between the service and feeder conductors could bypass the overcurrent protection for the feeder conductors.

The service disconnect must be capable of disconnecting all service-entrance conductors from wc&m served premises wiring.

But, feeder conductors covered by Articles and originate on the load side of service equipment. Attach overhead service-drop conductors to a point not less than 10 ft above the finished grade.

With the capability to magazinne products together as a system before sending out into the field, TIC ensures the highest level of quality, performance, and reliability. When a structure has two or more services, install a plaque at each service location to show the location of the other service [ Name Email Phone Question.

You must supply the service disconnect with a main bonding jumper [ In conduit under not less than 18 in. But if you start at that point and then follow Article methodically, you will efficiently meet the requirements for a safe service installation.

For one thing, service conductors for one structure cannot pass through the interior of another structure [ Service Entrance Definitions Service point.

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The AS3 is ideal for Industry 4. You cannot connect equipment to the supply side of the service disconnect enclosure, except for the seven categories identified in Service conductors are “outside” when they are installed: Permanently mark each service disconnect to identify it as part of the service disconnecting means [ Javascript must be enabled to use this site’s downloads feature. Service-Entrance Conductors A service drop or lateral can supply only one set of service-entrance conductors, with three exceptions Each ungrounded service conductor requires overload eec&m at the point where the service conductors terminate see Remember that service conductors originate at the utility service point and terminate on the line side of the service disconnecting means service equipment.


Route the phase conductors through separately sc&m holes in the weatherhead, and install a drip loop below the service head or below the termination of the service-entrance cable sheath.

Article Services – EC&M Magazine

Magazins you’ve established whether service conductors are inside or outside a structure, do you need to install separate raceways for them? When doing service installations, it helps to know some basic definitions Figure How can magqzine correctly and efficiently magazinne service installation requirements?

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Support service-entrance cable within 1 ft of service heads and raceway connections, and at intervals not exceeding 30 in.

The point of connection between the utility and the premises wiring. Download Registration Thanks for registering. Ungrounded service-drop conductors cannot be smaller than 8 AWG copper or 6 AWG aluminum except in limited-load installations.

Service Equipment You must supply the service disconnect with a main bonding jumper [ The rating of the protection device must not exceed the ampacity of the conductors see These include meters and tap conductors for certain purposes. Please enable javascript in your browser and refresh this page.

You cannot connect emergency standby power ahead of service equipment Figure