A number of changes were made in rule 24. Section a, with fine-print note, was stricken from the Code; section o was amended by making the first recommendation “a turn of 90 deg., etc.”; section p was amended so as to restrict the number of different circuits in the same conduit to four two-wire or three three-wire; section x was changed by substituting the word or after the word fastenings for of. Rule 24A was also changed somewhat. Section d was amended so as not to prohibit the installation of armored cable without the lead covering in buildings of fireproof construction in locations free from moisture; the word “underground” was omitted from the first line of the fine-print note under section a. A new section was added as follows: “All bends must be so made that the armor of the cable will not be injured. The radius of the curve of the inner edge of any bend not to be less than one and one-half inches.”
Rule 28, section e, was amended so as to exclude flexible cord from show cases as well as show windows; the fine-print note under section g was omitted. A number of minor changes were made in the rules governing the wiring of theaters, principally in inserting the words, “or armored cable,” so as to permit the use of the latter as an alternative to rigid conduit. The other changes have to do with the details of construction, fitting, etc. Among the miscellaneous suggestions adopted were the following: All self-fastening knobs, cleats and supports must be secured by suitable screws; wires in molding must be in continuous lengths from outlet to outlet or from fitting to fitting; sockets or rosettes cannot be used to dead-end a circuit; soap-stone can be used as an alternative for slate or marble; and ends of flexible wire need not be soldered before insertion under binding posts, as called for in rule 14, section c.
Approved Electrical Devices
This department from time to time will contain an illustrated description of all fittings approved by the Underwriters’ National Electric Association.
CONDUIT BOX, FLOOR OUTLET.
Iron box, brass floor plate and nozzle. Cat. No. 100. Approved March 20, 1908. Manufactured by
Arthur Frantzen Co., 92 W. Van Buren St., Chicago, Ill.