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GracePort®
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GracePort+
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GracePESDs® - Voltage Indicators
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GracePESDs® - Safe Test Point and Voltage Test Station (VTS)
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GracePESDs® - Voltage Portal and Combo Units
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GraceSense™ - Hot Spot Monitor (HSM)
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GraceSense™ Predictive Maintenance System
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Proxxi by Grace
Q: What is the shock hazard when using the Safe Test Point?
A: This finger-safe, high impedance device limits the available current at the test points. According to OSHA document 3075 (2002) page 7, “any shock hazard under 6mA is considered a slight shock; uncomfortable, but not painful.” Below you can see the currents are all well below the 6mA OSHA threshold:
Max fault current with Phase-to-Phase short between two test point jacks: 2.94 mA @ 600V
Max fault current with Phase-to-GND short on a 600V system : 3.40 mA (347 Volts)
Max fault current with Phase-to-Phase short between two test point jacks: 2.35 mA @ 480V
Max fault current with Phase-to-GND short on a 480V system : 2.71 mA (277 Volts)