Damper, vibration

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OBJECT TYPE: dumbbell
DATE: 2008
ARTIFACT NUMBER: 2010.0149.001

MANUFACTURER: Alcoa Conductor Accessories Inc.
MODEL: 771-870
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: Silver metal [possibly includes aluminum or aluminum alloy]. Yellow metal fastener head.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 41.0 cm
Width: 14.0 cm
Height: 7.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Energy-electric
Category: Transmission & distribution
Sub-Category: N/A

Manufacturer

AKA: Alcoa
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: This type made c. 2008, and used until 2010. This example appears new/unused.
Canada: The [lot] donation includes insulators, dampers, conductors, a preform rod, a sign, and personal gear from a Hydro One transmission station. It shows choices made by Hydro One, the typical equipment used at the beginning of the 21st c. on high voltage lines in Ontario. The artifacts also represent diversity and the longevity of manufacturers of electrical equipment and globalization of the markets. [Ref. 1]
Function: To suppress wind-induced vibrations on transmission lines.
Technical: Controls Oscillation and Aeolian Vibration. Wake-Induced Oscillation is a swinging motion, like a pendulum, that is caused when wind blows across a bundle of conductors. As the conductors move back and forth, there is a potential of the conductors to touch, thus causing significant damage. [Ref. 1]
Area Notes: Unknown

Details

Markings: "PAT. 3052747" stamped into anchor fitting. "ALCOA/ 771-870/ [illegible]" stamped into reverse.
Missing: Appears complete.
Finish: Silver metal [possibly includes aluminium or aluminium alloy]. Yellow metal fastener head.
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Alcoa Conductor Accessories Inc., Damper, vibration, circa 2008, Artifact no. 2010.0149, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/2010.0149.001/

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