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6 Product Specification *Weights and Dimensions *Normative Reference *Technical Data DAIWA

Trade Size Designator Weights and Dimensions Electrical Metallic Tubing (EMT) Electrical Metallic Tubing (EMT), also commonly called thin-wall, is a listed steel raceway of circular cross section

3, UL 797 Nominal Outside Diameter Reference Inside Diameter DAIWA Reference Wall Thickness Length Minimum Weight per 10 Unit Lengths U.S. Metric mm mm mm mm kg 1/2 15 17.9 15.8 1.06 3050 12.

7 Trade Size Designator Weights and Dimensions Electrical Metallic Tubing (EMT) Electrical Metallic Tubing (EMT), also commonly called thin-wall, is a listed steel raceway of circular cross section which is unthreadewd, and nominally 10 feet long. Twenty foot lengths are also available. Covered by Article 358 of the NEC,ANSI C80.3, UL 797 Nominal Outside Diameter Reference Inside Diameter DAIWA Reference Wall Thickness Length Minimum Weight per 10 Unit Lengths U.S. Metric mm mm mm mm kg 1/ / / / NOTE - Applicable tolerances Length : +/- 6 mm. Outside Diameter: for trade size 1/2 through 2 : +/ mm. Trade Size Designator Intermediate Metal Conduit (IMC) IMC has a reduced wall thickness, when compared to RSC, and weighs about one-third less than RSC. The outside has a galvanized coating for corrosion protection and the inside has an approved organic corrosion-resistant coating. Covered under Article 342 in the NEC, UL 1242 Nominal Outside Diameter Reference Wall Thickness Length without Coupling Minimum Weight per 10 Unit Lengths with Couplings Attached U.S. Metric mm mm mm kg 1/ / / / / / NOTE - Applicable tolerances Length : + 6 mm. Outside Diameter: for trade size 1/2 through 2 : +/- 0.2 mm. for trade size 2-1/2 through 4 : +/- 0.3 mm. Wall Thickness: for trade size 1/2 through 1 : mm. for trade size 1-1/4 through 4 : mm.

Trade Size Designator Trade Size Designator Number of Threads per 25.4 Rigid Steel Conduit (RSC) Rigid steel conduit is the heaviest-weight and thickest wall conduit.

The installation of Rigid Steel Conduit (RSC) is covered by Article 344 of the National Electrical Code (NEC ), ANSI C80.

8 Trade Size Designator Trade Size Designator Number of Threads per 25.4 Rigid Steel Conduit (RSC) Rigid steel conduit is the heaviest-weight and thickest wall conduit. Where galvanized by the hot-dip process, it has a coating of zinc on both the inside and outside. The installation of Rigid Steel Conduit (RSC) is covered by Article 344 of the National Electrical Code (NEC ), ANSI C80.1, UL 6 Nominal Outside Diameter Dimensions of Threads L4 Total Length of Threads Reference Wall Thickness L2 Effective Length of Threads DAIWA E0 Pitch DIameternat End of Conduit Length without Coupling U.S. Metric mm mm mm kg 1/ / / / / / NOTE - Applicable tolerances Thread Length : +/- 1 thread, recommended practice +0, -1 Pitch +/- 1 turn is the maximum variation permitted from the gaging face of the working thread gauges. Minimum Weight per 10 Unit Lengths with Couplings Attached U.S. Metric mm mm mm kg 1/ / / / / / NOTE - Applicable tolerances Length : +/- 6 mm. Outside Diameter: for trade size 1/2 through 2 : +/- 0.4 mm. for trade size 2-1/2 through 4 : +/- 0.6 mm. for trade size 5 through 6 : +/- 1.5 mm. Wall Thickness: -12.5%

Dimensions of 90 degree Elbows Dimensions of Coupling Trade Size Minimum Radius to Maximum Straight Designator Center of Tubing Length Ls Each End U.S. Metric mm. mm. 1/2 15 102 99.00 3/4 20 114 109.

9 Dimensions of 90 degree Elbows Dimensions of Coupling Trade Size Minimum Radius to Maximum Straight Designator Center of Tubing Length Ls Each End U.S. Metric mm. mm. 1/ / / / / / Trade Size Outside Pitch Chamfer Designator Diameter Diameter Diameter U.S. Metric mm. mm. mm. 1/ / / / / / Note - Applicable tolerance Outside Diameter tolerance : plus tolerances : no requirement minus tolerances - for tradesize smaller than 1-1/4 " mm. for trade size 1-1/4 " and larger :1%

10 Normative Reference (Engineering Specification) 1. Scope This specification relates to the Steel Conduit Accosiations. 2. Engineering Standard DAIWA Industry Company Limited manufactures the products by following the standard of ANSI, UL (International Standard) with a high technology machine. Therefore, DAIWA s conduit is satisfied by the high quality products. Design Codes of Practice: ANSI / ASME B ANSI / IEEE ANSI / NFPA ANSI C ANSI C Tubing ANSI C UL 6 UL 797 UL 1242 ANSI / NEMA FB NEMA FB IEC IEC General Purpose Pipe Threads Metric Practice National Electrical Code Specification for Zinc Coated Rigid Steel Conduit Specification for Zinc Coated Electrical Metallic Intermediate Metal Conduit (IMC) Zinc Coated Rigid Metal Steel Electrical Metallic Tubing Intermediate Metal Conduit Fitting, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable Selection and Installation Guidelines for Fittings for use with conduit. Extra heavy duty electrical rigid steel conduit Fittings for extra-heavy duty electrical rigid steel conduit DAIWA

Technical Data The product of DAIWA white conduit is satisfied the requirements of NEMA & UL: 1.

Threrfore, DAIWA white conduit have the properties of circular cross section, thereby facilitating the cutting of clean, true

Welding : A slight bead on interior wall is conform with UL standard: A welded seam shall be without any metal trimming, sharp

11 Technical Data The product of DAIWA white conduit is satisfied the requirements of NEMA & UL: 1. General (raw material) DAIWA is made from ERW steel pipe. The highest technology pipe forming in the world. Threrfore, DAIWA white conduit have the properties of circular cross section, thereby facilitating the cutting of clean, true threads. All seams are thoroughly welded. 2.Welding : A slight bead on interior wall is conform with UL standard: A welded seam shall be without any metal trimming, sharp edge, or sharp and the bead does not decrease the interior diameter of the tube by more than inch (0.38 mm) for trade sizes ½ - 2(16-53) or 0.20 inch(0.51 mm) in height for the trade size 2 1/2-4(63-103) ERW = The Electrical Resistance Welding Production DAIWA

3. Protective coating (Anti-corrosion) DAIWA s conduit is made from SABIN CORR 330

moisture, salty atmosphere, corrosive fumes. 4.

length,and conform to ANSI/ASME B1.20.1-1983.

12 3. Protective coating (Anti-corrosion) DAIWA s conduit is made from SABIN CORR 330 anti-corrosion which forms a barrier film to protect ferrous and non-ferrous metals from moisture, salty atmosphere, corrosive fumes. 4. Threading & Chamfering DAIWA s conduit is the perfect tapered thread for its entire length,and conform to ANSI/ASME B Therefore DAIWA s conduit is gualified to give satisfaction as followed 1. Easy to installation 2. Compatible with the common conduit fitting follow ANSI / NEMA FB , NEMA FB DAIWA

5. Bending properties DAIWA s conduit is

ANSI and UL, without developing cracks at

13 5. Bending properties DAIWA s conduit is capable of being bent cold into a quarter of a circular around a mandrel, the radius of which conform to requirements ANSI and UL, without developing cracks at any portion and without opening the weld. DAIWA

14 DAIWA s Research & Developement * 3C Product (New Innovative for steel conduit) DAIWA

Technology 3 C Anti Corrosion by Corodex BF Enamel Coating by RAMA Elecro-Zinc Platting Cold Roll Steel Slip Agent Coating by RAMA One of the major problems while the metallic pipe line has installed

With the above mentioned reason our research and developement department has intened the better product that will enhance the corrosive tolerance capability and more convenience when installation

15 Technology 3 C Anti Corrosion by Corodex BF Enamel Coating by RAMA Elecro-Zinc Platting Cold Roll Steel Slip Agent Coating by RAMA One of the major problems while the metallic pipe line has installed in the salty area is about the corrosion. In fact the common problem of the metallic pipe line typically can not be durable with the oxidization phenomenon. With the above mentioned reason our research and developement department has intened the better product that will enhance the corrosive tolerance capability and more convenience when installation called Tri-Coat technology, in abbreviation 3C technology, which include EMT, IMC, RSC. RSC Testing Result 24 hours 48 hours 72 hours 96 hours DAIWA 3c DAIWA KMUTT Laboratory The resulf from Salt Spray tester following ASTM B117 is show that Conventional RSC will occure 5% white rust at 24 hours whereas 3C RSC blitering at 72 hours and ocurre white rust at 96 hours. In conclution 3C product is persist Salt Spray more than the conventional product 4 times. Benefit of 3C coated Corrosive tolerance - More Durable - Lower Maintenace Cost - Smooth Surface

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NORMATIVE REFERENCES

American National Standards Institute NORMATIVE REFERENCES ANSI C135.30 1988 (expired 1993) Zinc-Coated Ferrous Ground Rod Electrodes for Overhead or Underground Lines American Society for Testing and