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Interior communications electrician (IC) is a rating in the United States Navy. They operate and perform organizational and intermediate maintenance on alarm, warning, and indicator systems; interior communications; and ship's control, entertainment, and navigation systems. [ 1 ]
Prior to March 2014, IC and EM combine at paygrade E-9 to the rating of Master Chief Electrician's Mate (EMCM). After that time, the IC Rating was moved to the Seaman ratings group from the Fireman ratings group. Now, upon selection to E9, ICCS is promoted to ICCM. [31]
Impact insulation class (or IIC) is an integer-number rating of how well a building floor attenuates impact sounds, such as footsteps. A larger number means more attenuation. The scale, like the decibel scale for sound, is logarithmic.
IC or “insulation contact” rated new construction housings are attached to the ceiling supports before the ceiling surface is installed. If the area above the ceiling is accessible these fixtures may also be installed from within the attic space. IC housings must be installed wherever insulation will be in direct contact with the housing.
IP65 touchscreen display IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against ...
Intelligence source and information reliability rating systems are used in intelligence analysis. This rating is used for information collected by a human intelligence collector. [1] [2] This type of information collection and job duty exists within many government agencies around the world. [3] [4]
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An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the maximum operating temperature (or peak operating ...