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Two examples of Spratt's lightning conductors

Two examples of Spratt's lightning conductors

1860

Pear-shaped brass conductor on insulated stand

Pear-shaped brass conductor on insulated stand

1900-1983

Cylindrical brass conductor on insulated stand

Cylindrical brass conductor on insulated stand

1900-1983

Spherical brass conductor on insulated stand

Spherical brass conductor on insulated stand

1900-1983

Conductor

Conductor

Cylindrical Conductor

Cylindrical Conductor

Cylindrical Conductor with attached Rod

Cylindrical Conductor with attached Rod

Cylindrical Conductor with Attached Wire

Cylindrical Conductor with Attached Wire

Bone-conductor with head-band and separate components

Bone-conductor with head-band and separate components

Two pieces of solid conductor

Two pieces of solid conductor

Cylindrical Conductor

Cylindrical Conductor

Cylindrical Conductor with attached Rod

Cylindrical Conductor with attached Rod

Prime conductor from plate electrostatic machine, Galvani collection

Prime conductor from plate electrostatic machine, Galvani collection

1780-1798

Aluminium conductor

Aluminium conductor

Aluminium alloy stranded conductors

Aluminium alloy stranded conductors

Armoured aluminium conductor.

Armoured aluminium conductor

Conductors and isolators, Branly collection. Other numbers are A182825 and B3935.

Conductors and isolators

Aluminium stranded conductor from outside sub-station, 127/0.150 in.

Aluminium stranded conductor from outside sub-station

Brass conductor

Three solid aluminium conductors ("Solidal") for insulated cables, 90° segments for 4 core cable

Three solid aluminium conductors ("Solidal") for insulated cables

One of three solid aluminium conductors ("Solidal") for insulated cables, 90° segments for 4 core cable

One of three solid aluminium conductors ("Solidal") for insulated cables

One of three solid aluminium conductors ("Solidal") for insulated cables, 90° segments for 4 core cable

One of three solid aluminium conductors ("Solidal") for insulated cables

One of three solid aluminium conductors ("Solidal") for insulated cables, 90° segments for 4 core cable

One of three solid aluminium conductors ("Solidal") for insulated cables

Conductor 91/.116

Conductor 91/.116

Conductor 19/.080

Conductor 19/.080

Solid aluminium conductors ("Solidal") for insulated cables, 120° segments for 3 core cable

Solid aluminium conductors ("Solidal") for insulated cables

Rectangular wood and tinfoil conductor on glass rod

Rectangular wood and tinfoil conductor on glass rod

Four cylindrical conductors with attached rod or wire

Four cylindrical conductors with attached rod or wire

Conductor 3/.148

Conductor 3/.148

Conductor 7/.064

Conductor 7/.064

Large prime conductor (hollow wooden cylinder with hemispherical ends, foil covered, one end broken off but present), of size to fit on supports listed as Pt 1, associated with Ramsden electrical machine but not originally part of it

Large prime conductor

B.I. Wire Company's flexible concentric with 0.54 sq.in. conductor, capable of carrying 7. 5 mVa per phase. Made with segmental inner and outer conductors - the former built up over a rope core - 1898

B.I. Wire Company's flexible concentric with 0.54 sq.in. conductor

1898

Single stranded conductor from a specimen of a 3 wire armoured cable, supposed to have been used at the 1851 Exhibition.

Single conductor form a specimen of a 3 wire armoured cable

I/144, twin, aluminium conductor, paper insulated and aluminium sheathed, 10,000 Volt. ( Cable for Catenary suspension)

I/144, twin, aluminium conductor

Four 15" lengths of hard drawn copper stranded conductors:- 3/.148; 7/.064; 19/.080; 91/. 116

Four 15" lengths of hard drawn copper stranded conductors

Aluminium conductors: one specimen 37/.1635; two specimens 37/.110; two specimens 37/.102; two specimens 19/.150; two specimens 7/.164; two specimens 7/.132; two specimens 7/.0935

Aluminium conductors