 | Harry Cooke Cushing - 1915 - 332 стор.
...other switches conveniently located on the mains or if the generators are near at hand. Switches should always be placed in dry, accessible places, and be grouped as far as possible. Single-throw knife switches should be so placed that gravity will not tend to close them. Doublethrow... | |
 | Walter Benedict Weber - 1916 - 164 стор.
...place, to the point where the wires enter the building, and arranged to cut off the entire current. Must always be placed in dry, accessible places, and be grouped as far as possible. Single-throw knife switches must be so placed that gravity will not tend to close them. Double-throw... | |
 | Terrell Croft - 1917 - 446 стор.
...omit the entrance cut-out, but to install an entrance switch at each building. 246. If/. SWITCHES. Must always be placed in dry, accessible places, and be grouped as far as possible. (See No. 19c.) Single-throw knife switches must be so placed that gravity will not tend to close them.... | |
 | Harry Cooke Cushing - 1917 - 374 стор.
...switches conveniently located on the mains or if the generators are near at hand. All switches should be placed in dry, accessible places, and be grouped as far as possible. All knife switches should be so placed that gravity will not tend to close them. (See cut p. 107.)... | |
 | Terrell Croft - 1920 - 488 стор.
...must be such that the neutral cannot be opened without opening both outside wires. 24b. If/. SWITCHES. Must always be placed in dry, accessible places, and be grouped as far as possible. (See No. 19c.) Single-throw knife switches must be so placed that gravity will not tend to close them.... | |
 | New York (N.Y.). Board of Aldermen - 1920 - 904 стор.
...such that the neutral cannot be opened without opening both outside wires. b. Switches must always he placed in dry, accessible places, and be grouped as far as possible (see §419c of this chapter). Single-throw knife switches must be so placed that gravity will not tend... | |
 | New York (N.Y.) - 1922 - 636 стор.
...including meters. Service switches must indicate plainly whether they are open or closed. b. Switches must always be placed in dry, accessible places, and be grouped as far as possible (see § 419c of this chapter). Singlethrow knife switches must be so placed that gravity will not tend... | |
 | Terrell Croft - 1924 - 576 стор.
...contact with live parts, even intentionally. 12026. INSTALLATION OF SWITCHES; GENERAL. Switches shall always be placed in dry, accessible places, and be grouped as far as possible. Switches Should Always Be Located In Dry Accessible Places. They should always be in dry places because... | |
 | Calvin Franklin Swingle - 1906 - 488 стор.
...immediately shut off. A switch is also useful in cases of trouble on the wiring, to allow of repairing. b. Must always be placed in dry, accessible places, and...placed that gravity will tend to open rather than close them. When possible, switches should be so wired that blades will be dead when switch is open. If knife... | |
 | New York (N.Y.) - 1913 - 254 стор.
...there are other switches conveniently located on the mains or if the generators are near at hand. T>. Must always be placed in dry, accessible places, and be grouped as far as possible. (See No. 19 <O Single-throw knife switches must be so placed that gravity will not tend to close them.... | |
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... b. Must always be placed in dry, accessible places, and be grouped as far as possible. Knife switches must be so placed that gravity will tend to open rather than close the switch. 
