EMT Conduit Installation Best Practices and Guidelines
EMT Conduit fittings
•
CEU ( Continuing Ed Units )
2 units
•
Classroom time
2 hrs.
Larry Beach Jr.
Director – Technical Sales
Bridgeport Fittings Stratford CT.
360-722-0004
•
EMT Couplings and Connectors
•
•
NEC 358.42
•
Proper installation practices per UL guidelines
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Compression
–
Set Screw
–
Push type
•
Concrete Tight
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Compression
–
Set screw
–
Push
•
NEC 344.42
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Threadless couplings and connectors
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EMT 2-1/2 and above
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GRC in damp or wet locations
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NEC 358.30
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Securing and Supporting
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NEC 312.2
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NEC 314.15
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Compression fittings, UL Changes 2002
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Compression fittings prior to 2002
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Rain tight EMT fittings
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NEC 225.22 Raceways in exterior locations
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UL 797 Identification and requirements
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Damp and Wet locations as described 2014 NEC
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Proper termination of Rain tight EMT Connectors
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Knockout
–
Hub
•
NEC 250.97
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Concentric / Eccentric Knockouts
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Box’s
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Panels
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Secondary Ground Path
–
Set screw
–
Compression
–
Push
•
NEC 300.4 (H)
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Expansion Fittings
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EMT
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GRC
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NEC 300.15(F)
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Fitting in Lieu of a box
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MC to EMT
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EMT to GRC
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EMT to FMC
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EMT to LTFMC
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Color identified conduit systems.
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Not a code requirement.
–
Required more often
–
Colored conduit or fittings ??
What happens if you paint a EMT fitting. ?
•
UL-514B / FB-1
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Materials
•
Testing requirements
•
Standards
With rough-in taking up to 60% of the labor on most projects, this is the area where more shortcuts are taken in order to maintain profitability .
This is going to be an overview of EMT conduit fittings
1. The UL requirements for proper installation
2. The different types of couplings and connectors in the market
3. Applications and location requirements
4. Supporting means
5. UL changes that can affect your installation
6. Labeling
7. How this all applies to NEC today and 2014
Explore essential information on EMT conduit fittings, couplings, connectors, installation practices, requirements per NEC standards, UL guidelines, and proper termination methods. Learn about color identification systems, materials testing requirements, expansion fittings, and more for a comprehensive understanding of electrical installations.
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Presentation Transcript
EMT Conduit fittings CEU ( Continuing Ed Units ) Classroom time 2 units 2 hrs. Larry Beach Jr. Director Technical Sales Bridgeport Fittings Stratford CT. 360-722-0004
EMT Couplings and Connectors NEC 358.42 Proper installation practices per UL guidelines Compression Set Screw Push type Concrete Tight Compression Set screw Push
NEC 344.42 Threadless couplings and connectors EMT 2-1/2 and above GRC in damp or wet locations NEC 358.30 Securing and Supporting NEC 312.2
NEC 314.15 Compression fittings, UL Changes 2002 Compression fittings prior to 2002 Rain tight EMT fittings NEC 225.22 Raceways in exterior locations UL 797 Identification and requirements Damp and Wet locations as described 2014 NEC Proper termination of Rain tight EMT Connectors Knockout Hub
NEC 250.97 Concentric / Eccentric Knockouts Box s Panels Secondary Ground Path Set screw Compression Push
NEC 300.4 (H) Expansion Fittings EMT GRC NEC 300.15(F) Fitting in Lieu of a box MC to EMT EMT to GRC EMT to FMC EMT to LTFMC
Color identified conduit systems. Not a code requirement. Required more often Colored conduit or fittings ?? What happens if you paint a EMT fitting. ?
UL-514B / FB-1 Materials Testing requirements Standards
