Fault limiter having a one-piece enclosure of glass-reinforced r

Details Fault limiter having a one-piece enclosure of glass-reinforced r Fault limiter having a one-piece enclosure of glass-reinforced r

1979-09-10

1981-08-04

Harris, George

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337248, H01H 8520

Patent

active

042825040

ABSTRACT:
An improved housing for a high-voltage device which may be subjected to rough handling during installation and to high internal pressure during operation. A flexible, thick outer enclosure is molded about an inner, thin reinforcing layer which has interstices and high tensile strength. The molding locks the enclosure to the layer as the material of the former enters the interstices. The flexibility of the enclosure protects the housing and the device from the effects of rough handling. The flexibility of the enclosure also ensures that it is deformed or stretched sufficiently by high pressures accompanying device operation to ensure that the layer is loaded in tension. Loading the layer in tension ensures that the housing does not fracture or violently rupture.

REFERENCES:
patent: 3911385 (1975-10-01), Blewitt et al.
patent: 4012708 (1977-03-01), Goe
patent: 4035753 (1977-07-01), Reeder
patent: 4104604 (1978-08-01), George

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