Standard for Good Workmanship in Electrical …

1 A n A m e r i cAn nAti o nAl S tAndArdNECA 1-2010 Standard forGood Workmanshipin Electrical ConstructionPublished byNational Electrical Contractors AssociationStandard forGood Workmanshipin Electrical ConstructionNECA 1-2010An AmericanNational Standard (Reaffirmation) Published byNational ElectricalContractors AssociationNOTICE OF COPYRIGHTT hisdocumentiscopyrightedbyNECAR eproduction of these documents either in hard copy or soft (including posting on the web) is prohibitedwithout copyright permission. For copyright permission to reproduce portions of this document, pleasecontact NECA Standards & Safety at (301) 657-3110 ext.

2 549, or send a fax to (301) Electrical Contractors Association3 Bethesda Metro Center, Suite 1100 Bethesda, Maryland 20814(301) 657-3110 Organizations may obtain permission to reproduce a limited number of copies by entering into a licenseagreement. For information, contact:IHS15 Iverness Way EastEnglewood, CO 80112-5704 or call1-800-854-7179 (USA and Canada)(303) 397-7956 (International) iii Foreword ..v1. Scope .. Regulatory and Other Requirements ..12. Receiving, Storing and Protecting .. Receiving Material on Site.

3 Storage and Protection ..23. General Requirements ..34. Anchors and Fasteners ..45. Hangers and Supports ..56. Outlet Boxes ..77. Junction and Pull Boxes ..88. Raceways ..99. Wire and Cable ..1410. Equipment Mounting ..1611. Mounting Heights .. Recommended Outlet Mounting Heights .. Heights of Disconnect Switches, Protective Devices, Controllers, etc.. Panelboards ..19 Annex A: Reference Standards ..20 Table of ContentsNECA 1 Standard for good Workmanship in Electrical construction iiRevision HistoryNECA 1-200003/2000 NECA 1-200608/2006 NECA 1-2010 (Reaffirmation)01/2011iii National Electrical Installation Standards (NEIS )aredesigned to improve communication among speci-fiers, purchasers, and suppliers of Electrical construc-tion services.

4 They define a minimum baseline ofquality and Workmanship for installing Electrical prod-ucts and intended to be referencedin contract documents for Electrical construction pro-jects. The following language is recommended:General work practices for Electrical constructionshall be in accordance with NECA 1-2010,Standardfor good Workmanship in Electrical construction (ANSI).Use ofNEISis voluntary, and the National ElectricalContractors Association (NECA) assumes no obliga-tion or liability to users of this publication.

5 Existenceof a Standard shall not preclude any member or nonmember of NECA from specifying or using alternateconstruction methods permitted by applicable publication is intended to comply with the edi-tion of the National Electrical Code (NEC) in effectat the time of publication. Because they are qualitystandards,NEISmay in some instances go beyondthe minimum safety requirements of the NEC. It isthe responsibility of users of this publication to com-ply with state and local Electrical codes wheninstalling Electrical products and for revisions and improvements to thisstandard are welcome.

6 They should be addressed to:NECA Standards & Safety3 Bethesda Metro Center, Suite 1100 Bethesda, MD 20814(301) 657-3110(301) 215 4500 purchaseNEIS, contact the NECA Order Desk at(301) 215 4504 tel, (301) 215-4500 fax, also be purchased in .pdfdownload format 2010, National Electrical ContractorsAssociation. All rights reserved. Unauthorized repro-duction Electrical Installation Standards, NEIS,andtheNEIS logo are trademarks of the NationalElectrical Contractors Association. National ElectricalCode and NEC are registered trademarks of theNational Fire Protection and illustrations courtesy of the InternationalAssociation of Electrical Inspectors (IAEI).

7 Foreword(This foreword is not a part of the Standard )<This page intentionally left blank>1 This Standard describes what is meant by installingequipment in a neat and workmanlike manner asrequired by the National Electrical Code, Regulatory and Other Requirementsa) All information in this publication is intended toconform to the National Electrical Code(ANSI/NFPA 70). Installers should always follow theNEC, applicable state and local codes, manufacturer sinstructions, and contract documents doing ) Only qualified persons familiar with the construc-tion and installation should perform the workdescribed in this publication.

8 It is recommended thatall work be performed in accordance with NFPA 70E, Standard for the Electrical Safety in the ) OtherNational Electrical Installation Standards(NEIS)provide additional guidance for installingparticular types of Electrical products and systems. Acomplete list ofNEISis provided in Annex Scope Receiving Material on Sitea) Material and equipment shall be carefullyunloaded, observing all packing label ) Packages with packing slips and/or purchaseorders shall be inventoried. Back orders shall be doc-umented and new shipping schedules verified.

9 Ifapproved project data (shop drawings) are used,check all products for completeness and timely deliv-ery. Expedite or otherwise resolve the product deliv-ery schedule ) Leaving protective coverings in place as much aspossible, shipment shall be opened and inspectedcompletely and, as quickly as possible, recovery ofloss due to shipping damage shall be material shall be carefully repacked,unless intended for immediate :Depending on specifications, company policy or projectcircumstances, it may be necessary to receive, unpackand check all material at the company shop or otherstaging area, in which case careful repackaging Storage and Protectiona) Material shall be stored in a clean, dry and securelocation.

10 Especially avoid spaces were water mightaccumulate or where significant airborne dust or dirtis present. If such a location is not available, materialshall be stored on pallets or other means to riseabove floor and possible water levels, and wrapped inprotective plastic ) Observing warnings and stacking instructions onpackaging or shipping materials, equipment shall bestacked or otherwise stored to prevent ) Storage shall be organized with essential informa-tion such as luminaire type, project destination, volt-age, job tags, or labels for easy reference and )