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Earth Ground Tester

Hipot is an abbreviation for high potential. Traditionally, Hipot is a term given to a class of electrical safety testing instruments used to verify electrical insulation in finished appliances, cables or other wired assemblies, printed circuit boards, electric motors, and transformers. The term Hypot is a trademark for hipot testers made by Associated Research.

A Hipot test (also called a Dielectric Withstand test) verifies that the insulation of a product or component is sufficient to protect the operator from electrical shock. In a typical Hipot test, high voltage is applied between a product's current-carrying conductors and its metallic chassis. The resulting current that flows through the insulation, known as leakage current, is monitored by the tester. The theory behind the test is that if a deliberate over-application of test voltage does not cause the insulation to break down, the product will be safe to use under normal operating conditions -- hence the name, Dielectic Withstand test.

Dielectric breakdown Test. The test voltage is increased until the dielectric fails, or breaks down, allowing too much current to flow. The dielectric is often destroyed by this test so this test is used on a random sample basis. This test allows designers to estimate the breakdown voltage of a product's design.

Dielectric Withstand Test. A standard test voltage is applied (below the established Breakdown Voltage) and the resulting leakage current is monitored. The leakage current must be below a preset limit or the test is considered to have failed. This test is non-destructive and is usually required by safety agencies to be performed as a 100% production line test on all products before they leave the factory.

Insulation Resistance Test. This test is used to provide a quantifiable resistance value for all of a product's insulation. The test voltage is applied in the same fashion as a standard Hipot test, but is specified to be Direct Current (DC). The voltage and measured current value are used to calculate the resistance of the insulation.

For Ground Bond Test a high current (usually 25-30A AC) is applied to the product under test to verify that all conductive parts of said product (exposed to the user) are connected to power line ground.

 Keysight
U1451A
Handheld Resistance Insulation Tester
250 V to 1 kV, 66 GΩ
New - Priced From
$500
 Fluke
1621
Earth Ground Tester
For ground resistance testing
New - Priced From
$1,000
1621 Kit
Earth Ground Tester Kit
Fluke 1621 Earth Ground Tester, Hard case, Stake Kit
New - Priced From
$1,300
1623-2
Basic GEO Earth Ground Tester
Basic GEO Earth Ground Tester, 1999 digit LCD Display
New - Priced From
$1,700
1623-2 Kit
Basic Geo Earth Ground Tester Kit
Fluke 1623-2 GEO Earth Ground Tester and accessories
New - Priced From
$2,700
1625-2
Advanced GEO Earth Ground Tester
Advanced GEO Earth Ground Tester, 2999 Digit LCD Display
New - Priced From
$2,800
1625-2 KIT
Advanced Geo Earth Ground Tester Kit
1625-2 Advanced GEO Earth Ground Tester and accessories
New - Priced From
$3,800
1630
Earth Ground Clamp Meter
Compact, rugged design
New - Priced From
$1,800
 Chroma
19032
Electrical Safety Analyzer
5 kV AC & 6 kV DC Hipot, IR, Ground Bond, Leakage Current
New
 B&K Precision
309
Earth Resistance Meter
20/200/2000 ohm ranges, Digital display
New - Priced From
$195
 Extech
382152
Ground Resistance Tester Kit
Ranges: 20Ω / 200Ω / 2000Ω Ω
Used
382153
Earth Bars
Replacement Earth Bars (2pk)
Used
382154
Test Leads
Test Leads for 382152
Used
382252
Ground Resistance Tester Kit
AC/DC Voltage, Resistance, Continuity
New - Priced From
$250
382253
Earth Bars
(2pc)
New - Priced From
$42
382254
Test Leads
(5pc)
New - Priced From
$22
382357
Ground Resistance Tester
Non-Contact, Programmable Datalogging
New - Priced From
$1,359
GRT300
Earth Ground Resistance Tester
4-wire, 2 to 2000Ω
New - Priced From
$999
 Instek
GPT-9904
Hipot Tester, Electrical Safety Tester
AC, DC, Insulation Resistance, Ground Bond Tester
New - Priced From
$4,940
 Hioki
3143
Earth Ground Tester
20 to 500 Ω
Used
3151
Earth Ground Tester
3-electrode, Grounding resistance meter, Voltage Detector
New - Priced From
$555
3157-01
AC Grounding Tester
To 31Amps AC, 4-terminal method
New - Priced From
$3,795
9215
Measuring Cable
5 m Black, 10 m Yellow, 20 m Red, Winder
New - Priced From
$50
FT6380, FT6381
Earth Ground Clamp Meters
0.02Ω to 1600Ω
New - Priced From
$1,295
 Amprobe
A-5000
A-Frame Ground Fault Locator
A-FRAME FOR AT-5000
New - Priced From
$1,100
C2001
Optical Serial Cable
DOWNLOAD CABLE, GP-2
Used
DGC-1000A
Ground Resistance Tester
Clamp-on, 0.025 to 1500 Ohms, Data Logging
New - Priced From
$1,500
Earth-Test
Telaris Earth-Tester
1999Ω / 1 Ω, 3-Digit; LCD; 1999 Count
New - Priced From
$775
GP-2A
Ground Resistance/Resistivity Tester
0.08 Ω 49.9 kΩ
New - Priced From
$2,000