Pipe corrosion in domestic service

• Book ID: 104121901
• Publisher: Elsevier Science
• Year: 1918
• Tongue: English
• Weight: 69 KB
• Volume: 185
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(18)90728-3

✦ Synopsis

27 ° C., in the case of a loop 4-9 metres long (19. 3 feet), with its sides 5.I cm. (2 inches) apart. Each side of this loop was composed of three of these copper bars in parallel, clamped together at the ends, over spacing pieces to keep the individual bars 6.35 metres (0.25 inch) apart. The aggregate conductor was thus lO2 ram. wide × 31.8 ram. thick (4 inches × 1.25 inches). T:he alternating testing current was over iooo amperes in this case. With the same 3-bar loop broadened out to a separating distance of 63. 5 cm. (25 inches) between the sides, the resistance ratio R'/R fell off to 2.0 at 61 ~and 25 ° C.