File:Transformer above firestops.jpg
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Size of this preview: 397 × 599 pixels. Other resolutions: 159 × 240 pixels | 318 × 480 pixels | 509 × 768 pixels | 678 × 1,024 pixels | 1,357 × 2,048 pixels | 3,131 × 4,725 pixels.
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| Description | Transformer cabinets/US power plant. Transformers often sit on fire-resistance rated concrete floor slabs that with big openings below to allow conductors to penetrate. These openings must be firestopped to restore the rating of the floor. In unionised North American construction sites, this work is done by composite crews between insulators and electricians, where insulators seal the openings and electricians make sure the work is done safely. | ||
| Date | |||
| Source | Own work | ||
| Author | Achim Hering | ||
| Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following licenses:
  This file is licensed under the Creative Commons Attribution 3.0 Unported license.
You may select the license of your choice. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:55, 11 December 2007 | | 3,131 × 4,725 (957 KB) | Achim Hering (talk | contribs) | {{Information |Description=Transformer cabinets in a hydroelectric power station in the United States. At times, transformers sit on fire-resistance rated concrete floor slabs that have large openings beneath these cabinets to allow electrical conduct |
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