Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

porcelain shell/ copper/ wax

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

16,6 cm

Largeur

4,5 cm

Hauteur

5,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Énergie-électrique

Catégorie

Site d'utilisateur

Sous-catégorie

S/O

Fabricant

Ou

D&W

Pays

United States of America

État/province

Rhode Island

Ville

Providence

Contexte

Pays

Canada

État/province

Inconnu

Période

Inconnu

Canada

An example of a fuse cutout of a type used in Canada. Part of a large and varied collection of over 7500 electrical items acquired and documented by Ontario Hydro in the1960s. The collection was thought to be the largest and most comprehensive of its kind in Canada and was donated to the National Museum of Science and Technology in 1992.

Fonction

An electrical device which interrupts the flow of electrical current through a piece of apparatus or equipment.

Technique

An example of a fuse cutout. In the period 1880 to 1889 Edison invented a device to protect wiring from over-heating. In 1880 he patented the use of a fuse. The early fuse block was first made of wood with brass fittings. Lamps were individually fused until the early 1900s. In the period 1890-1899, fusing was often done using fuse wire in an open porcelain cutout with a cover of sheet mica or porcelain. These cutouts were made of porcelain as were the fuse plugs. These links consisted of lengths of fuse wire with copper terminals at each end. In the latter part of this period, the cartridge fuse was introduced. It was most common in industrial settings but was the only type that could be used when the current was more than 30 amps (Ref. 2).

Notes sur la région

Inconnu

Détails

Marques

raised lettering on top reads "D & W FUSE CO./ O 30 A 600 V./ CAT. NO. 28076/ N E CODE STD"/ raised lettering on underside reads "7-2"

Manque

appears complete

Fini

glazed white porcelain/ copper coloured metal/ brown wax

Décoration

S/O