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Can thhn wire be run exposed in a plenum rated ceiling for grounding?
Wiki User
∙ 12y ago
yes
Wiki User
∙ 12y ago
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When would a technician use plenum-rated cable?
Plenum rated cabling is required when used in an open ceiling return air environment. That is when the return air for the hvac units use the space between the ceiling of the first floor and the floor of the second floor as a return air plenum. The way to tell is if the return air vent has a duct attached to it. The duct will run to the air conditioning air handler. This condition IS NOT a plenum rated ceiling. However, if the return air vent does not have a duct, that means the air conditioning air handler is using the air space between floors as a plenum. This condition requires the use of plenum rated cabling. If plenum rated cable is exposed to flame, it does not give off toxic gases as it melts.
Can you have cpvc in plenum rated ceiling?
CPVC is safe for return air plenum use, but you should always check with the local codes and regulations adopted by your authority having jurisdiction.
Is ABS plastic plenum rated?
NO
What is a characteristic on plenum rated cable?
Recommended for HVAC
What is the letter designation for communication cable that is plenum rated?
Type cmp, catvp cl3p, fplp P designates "plenum"
What is CMP rating?
"Plenum" is a fire code rating. It is sometimes identified by the designation "CMP" meaning a communications plenum rated cable. http://www.lockergnome.com/it/2005/04/01/what-is-plenum-cable/
What are some of the best rated brands of ceiling heaters?
There are a number of companies that manufacturer ceiling heaters. Some of the best rated brands of ceiling heaters are Broan, NuTone, Modine and Winchester.
What are the ratings and certificates for Whitewashing the Ceiling - 1914?
Whitewashing the Ceiling - 1914 is rated/received certificates of: UK:U
Yes but not completely exposed to the elements. Look for Direct Burial/outdoor rated if it will be completely exposed to rain and sunlight.?
Yes but not completely exposed to the elements. Look for Direct Burial/outdoor rated if it will be completely exposed to rain and sunlight.
What are the ratings and certificates for Dancing on the Ceiling - 1937?
Dancing on the Ceiling - 1937 is rated/received certificates of: USA:Approved (PCA #2982)
What are the ratings and certificates for Exposed - 1947?
Exposed - 1947 is rated/received certificates of: USA:Approved
What are the ratings and certificates for Exposed - 2003?
Exposed - 2003 is rated/received certificates of: USA:R
