plenum spaces造句

例句与造句

1. High voltage electrical devices similarly must be enclosed in a plenum space, inside a metallic container.
2. Thus, plenum cable can always replace riser cable, but riser cable cannot replace plenum cable in plenum spaces.
3. The purpose of these restrictions is to limit flame spread inside the unseen plenum space, in the event of high voltage equipment or wiring failure.
4. High-voltage electrical equipment ( generally regarded as being over 50 volts ) is not permitted to be exposed in the plenum space above a drop ceiling.
5. Another standardized color is white, usually associated with plenum cable . "'Plenum cable "'is cable used in plenum spaces of buildings.
6. It's difficult to find plenum spaces in a sentence. 用plenum spaces造句挺难的
7. If the shaft is used for mine ventilation, a plenum space or casing is incorporated into the collar to ensure the proper flow of air into and out of the mine.
8. In addition, no high-voltage powered equipment is allowed in the plenum space because presence of fresh air can greatly increase danger of rapid flame spreading should the equipment catch on fire.
9. As plenum spaces are restricted from use as areas for storage, the principle behind removal of abandoned cable is that regulated removal prevents the use of plenum spaces as a storage area for abandoned cable.
10. As plenum spaces are restricted from use as areas for storage, the principle behind removal of abandoned cable is that regulated removal prevents the use of plenum spaces as a storage area for abandoned cable.
11. Plenum-rated cables are slower to burn and produce less smoke than cables using a mantle of materials like PVC . Plenum-rated cables may be installed in plenum spaces where PVC is not allowed.
12. This helps to protect building occupants so that they are not poisoned with toxic chemicals sucked through the ventilation system in the event of a fire, and helps to prevent fires from spreading inside the hidden plenum space.
13. Similarly, electrical outlets for domestic powered devices are not permitted inside the plenum space, though outlets can be installed on ceiling tiles inside electrical boxes, with the sockets exposed on the exterior bottom face of the drop ceiling.
14. A "'plenum space "'is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated / conditioned or return airflows, usually at greater than atmospheric pressure.
15. In older buildings the space above the dropped ceiling was often used as a plenum space for ventilation systems, requiring only enclosed ducts that deliver fresh air into the room below, with return air entering the ceiling space through open grilles across the ceiling.