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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0871281 (1986-06-06) |
| 발명자 / 주소 |
|
| 인용정보 | 피인용 횟수 : 472 인용 특허 : 0 |
An improved underground utility equipment vault is comprised of at least two concentrically disposed chambers. The inner chamber is a non-electrically conductive material such as wood and is disposed in spaced concentric relationship within the outer chamber which is metallic, preferably steel. The
An improved underground utility equipment vault is comprised of at least two concentrically disposed chambers. The inner chamber is a non-electrically conductive material such as wood and is disposed in spaced concentric relationship within the outer chamber which is metallic, preferably steel. The exterior surface of the outer chamber is provided with a protective dielectric coating and cathodic protection in the form of sacrificial anodes. The inner chamber is provided with heat vents adjacent its uppermost surface area and cold air returns adjacent its lowermost surface area. The heat vents may be provided with exhaust fans. The inner chamber is provided with above ground air communication and an entryway. The interior of the inner chamber and electric gear therein contained is electrically isolated from the outer chamber and the vault exterior.
An improved underground utility equipment vault comprising: (a) an inner chamber constructed from a non-electrically conductive material of a selected geometric configuration; (b) an outer chamber constructed from electrically conductive heat exchange material in a selected geometric figuration larg
An improved underground utility equipment vault comprising: (a) an inner chamber constructed from a non-electrically conductive material of a selected geometric configuration; (b) an outer chamber constructed from electrically conductive heat exchange material in a selected geometric figuration larger in overall dimension than said inner chamber; (c) supporting means for supporting said inner chamber within said outer chamber in spaced relationship to said outer chamber; (d) heat vent and cold air return means provided in said inner chamber for passive convection cooling communication between the interior of said inner chamber and the space the exterior of the inner chamber and the interior of the outer chamber; (e) the exterior of said outer chamber coated with a protective dielectric coating and being further provided with cathodic protection in the form of a plurality of sacrificial anodes; (f) said inner chamber containing electrical equipment electrically coupled to cables extending through the inner and outer chambers in electrically isolated relationship relative to said outer chamber.
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