Comment câbler les bâtiments ; un manuel de l'art de câblage intérieur . et beaucoup de couches, et la bobine de rigidification est composé d'un grand fil avec un fewlayers. La quantité de courant en ampères fourni à lesvis de la bobine est petit, mais la tension est élevée, et le courant en ampères créé dans le secondarycoil, est grand, mais la tension est faible. La taille de la bobine régit la différence de potentiel et thecurrent produites, ou, en d'autres termes, moins le nombre de couches sur le secondaire, plus thecurrent en ampères, et abaisser la tension. Le convertisseur comme appliquée dans la pratique, est un des plus important

• Contributeur: The Reading Room / Alamy Banque D'Images
• ID de l’image: 2AN7ARB
• Taille du fichier: 7,1 MB (288 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1323 x 1888 px | 22,4 x 32 cm | 8,8 x 12,6 inches | 150dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

How to wire buildings; a manual of the art of interior wiring . and many layers, and thesecondary coil consists of a large wire with a fewlayers. The amount of current in amperes supplied to theprimary coil is small, but the voltage is high, andthe current in amperes created in the secondarycoil, is large, but the voltage is low. The size ofthe coil governs the difference of potential and thecurrent produced, or, in other words, the fewer thenumber of layers on the secondary, the greater thecurrent in amperes, and lower the voltage. The converter as applied in practice, is one of themost important discoveries appertaining to the artof electric lighting, and is destined, at an earlydate, to play an even more important part than itdoes at present. It is therefore essential that wire-men should familiarize themselves with the work-ings and construction of the various types of con-verters. They are usually located on the roofs, orsides of houses, on poles, or in the vaults of struc-tures where the underground system is used. HOW TO WIRE BUILDINGS. 55. 56 HOW TO WIRE BUILDINGS. When placed outside of a structure, a double poleswitch and cut-out should be inserted in the line atthe point of entrance to the building. When theconverter is located in the vault or cellar, the pri-mary wires should be thoroughly insulated andprotected from leaks, grounds, short circuits, andmechanical interference or dislocation, and at nopoint should the conductor, or the material sur-rounding it, touch the structure. The greatest careshould be taken, at the point where the wires enterthe building, to exclude gases, moisture, etc. Theinsulation directly on the conductor should be ofthe highest grade. The- conductor should be in-serted in a conduit composed of insulating mate-rial, and all should be inserted in a galvanized iron, or such like, pipe. The iron pipe should be fast-ened to, but kept free from, the building by theuse of strong iron arms, having a band of insulatingmaterial between t

Recherche dans la banque de photos par tags

• bookcentury1900
• bookdecade1900
• bookidcu3192400361
• bookyear1906