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Typical Drop Wire / Rod ApplicationsFigure 5 - BA311• Secures independent support wires to ceilinggrid as required by NEC Article 300-11.• Bright yellow color is easily identified byinspectors.• Alternate designs can be used to secure1 /4” - 3 /8” rods.• Slotted design permits adjustment whensecuring rods.• See page 63Figure 6 - BX-8 / BX-18• B-Line’s BX8 and BX18 can be used to supportcabling from independent drop wires or rodsand must be properly secured to comply withArticle 300-11.• These fasteners will support MC, AC, BX orEMT from #12 hanger wire through 1 /4" plainrod without deforming the support wire or rod.• See page 40NEC RequirementsFigure 7 - BG-8-12-S18-W2• This series of fasteners can be used to secure anelectrical box and the associated conduit runs toa single, dedicated drop wire or rod which hasbeen properly secured to meet Article 300-11requirements.• B-Line’s patented Guide-Rite fasteners supportthe conduit on either side of the junction box,within the spacing required by Article 348-12.• See page 45Figure 8 - PR / ATR• B-Line’s pencil rod and ATR is available in 1 /4”and 3 /8” sizes and provides secure support forflexible cable systems.• Can be secured to ceiling grid with BA311-W2or BA311-W6 if desired.• See page 131138Reprinted with permission from NFPA 70-1999, the National Electrical Code ® , Copyright ©1998, National Fire Protection Association, Quincy, MA 02269. This reprinted material isnot the complete and official position of the National Fire Protection Association, on thereferenced subject which is represented only by the standard in its entirety.
Figure 15 - BRC4M / BRC4• Secure MC cable every 6 ft. and within 12” ofevery box, cabinet or fitting to comply withArticle 334-10.• Article 300-4 (d) compliant.• Use BRC4 for cables up to 0.5” O.D. and BRC4Mfor cables up to 1” O.D.• See pages 25Figure 16 - BG-8-12-S18-W2• B-Line’s patented Guide-Rite ® Fastenerssupport the conduit on either side of thejunction box, within the spacing to complywith NEC Article 348-13.• This series of fasteners can be used to securean electrical box and the associated conduitruns to a single, dedicated drop wire or rod.• See page 45334-10. Installation. Type MC cable shall be installed in compliance withArticles 300, 490, 725, and Section 770-52 as applicable and in accordancewith the following.(a) Supported Cables. Type MC cable shall be supported and securedat intervals not exceeding 6 ft. (1.83 m). Cables containing four orfewer conductors, sized no larger than No. 10 shall be secured within12 in. (305 mm) of every box, cabinet, fitting, or other cabletermination. (See Figure 15)(1) Horizontal Runs. Cables installed in other than vertical runsthrough bored or punched holes in wood or metal framingmembers, or through notches in wooden framing members andprotected by a steel plate at least 1 /16 in. (1.59 mm) thick shall beconsidered supported and secured where such support does notexceed 6 ft. (1.83-m) intervals. (See Figure 1)348-13. Supports. Electrical metallic tubing shall be installed as a completesystem as provided in Article 300. Each tubing length shall be securelyfastened in place at least every 10 ft. (3.05 m). In addition, each tube shallbe securely fastened within 3 ft. (914 mm) of each outlet box, junction box,device box, cabinet, conduit body, or other tubing terminations.(See Figure 16)NEC RequirementsReprinted with permission from NFPA 70-1999, the National Electrical Code ® , Copyright ©1998, National Fire Protection Association, Quincy, MA 02269. This reprinted material isnot the complete and official position of the National Fire Protection Association, on thereferenced subject which is represented only by the standard in its entirety.141