Fluke's new earth ground
testers identify poorly grounded systems, helping increase uptime.
In an ungrounded system, nothing is connected to earth ground
; the neutral point is electrically "floating" (Fig.
It also polarises the plug, ensures the line pin is connected to the correct terminal in the socket and acts as an earth ground
to protect against insulation failure of the connected device.
The MOV contains zinc oxide particles placed between two metal plates, with one plate usually attached to earth ground
. The varistor has a sharp breakdown characteristic that enables it to provide surge suppression.
For maximum electrical noise reduction, tie all panel and hopper grounds to a single frame ground that is tied to the nearest good-quality building earth ground
. Clean, isolated supply power and proper machine grounding and static-discharge techniques can help to ensure reliable blender operation.
The publication divides information into sections for commercial electricians, industrial electricians, and HVAC/ IAQ technicians, or viewers can navigate by product categories, including digital multimeters, electrical testers, earth ground
testers, and power quality analyzers.
Connect from cabinet to proper earth ground
Ground leads should be the same gauge as the leads to main power or one gauge smaller.
Phone systems also require a valid "earth" ground; ask your electrician to run a cable for a valid earth ground
to a ground bar near the location of the phone system.
Fluke--a leading supplier of handheld test and measurement equipment--has introduced two new earth ground
testers which perform all four types of ground resistance measurements quickly and conveniently.
Performs earth ground
, AC/DC hi pot and insulation testing.
It is recommended by the IEEE 1394-1995 standard that all nodes subject to an earth ground
connection should employ the use of galvanic isolation around the component that drives the bus (the physical layer control chip or PHY).
The resistors are installed between the neutral of a generator (or transformer) and earth ground
so as to limit the maximum fault current to a safe level (typically 25 to 400 amps).