Your safety is our concern. We know it’s critical for you to have the ability to save lives by safely detecting high voltages. That’s why we offer our non-contact High Voltage Detector model 275HVD. The Model 275HVD detects the presence of voltages from 80V up to 275kV without physical contact. The detector instrument can be used both indoors and outdoors.
Our instrument offers a self-test function that works through an actual sensing circuit, it does not just turn on a light and buzzer.
As the sensor is moved closer to the voltage carrying conductor, its sensor head picks up the radiated electric field. Once the threshold is reached, a loud buzzer sounds and a bright red LED voltage indicator light that is visible from a long distance, alerts the operator of live conductors. A self-test feature ensures all circuitry and annunciators are working properly.
A universal spline on the instruments back facilitates attachment to any standard hot stick. Our durable handle will not come loose at the end of the hot stick when flexed.
AEMC® provides complete technical support through our technical hot line 800-945-2362 (ext.351), speak directly to one of our tech support team members. Or e-mail your questions to our tech team techsupport@aemc.com
Our knowledgeable and friendly service team provides the best support in the industry. We seek to understand your inquiry or feedback in a respectful and responsive way. Our goal at AEMC® Instruments is to surpass your expectations.
I have a question regarding the use of proximity voltage detectors for performing absence of hazardous energy level testing, particularly related to medium voltage systems.
While I have a fair amount of experience applying 70e requirements in industrial facility and factory environments operating at 480V and below, I am inexperienced on higher voltage industrial systems. I?m hoping some of you gurus of smart can help me out.
My understanding is that the use of proximity voltage detectors for performing safe-to-work voltage is strongly discouraged. There are just too many chances for false positives and - heaven forbid - false negatives with a proximity voltage detector; rather, a direct contact style voltmeter should normally be used to verify absence of voltage less than 50 volts before performing work.
I am presently working on a construction project where we are performing hands-on work on 25kV equipment and our normal 1000 volt rated Fluke multimeters are not suitable for zero-energy voltage testing at those levels.
We have been using a hotstick-mounted Salisbury high-voltage proximity detector as our sole means of verifying a circuit is deenergized before working on the circuit. This proximity detector is not rated to detect voltages below 240V, nor can it read DC voltages which might be present from polarized insulation, charged capacitors, etc. It has been suggested that we use the prox to verify the circuit is deenergized at less than 240 volts and then using a Fluke as the final safe-to-work check, however that approach makes me uncomfortable.
Simply applying a safety ground is not an option available to us either. Applying a safety ground would require donning of appropriate PPE levels. Unfortunately, the consultants who performed the arc-flash study labeled the equipment, ?DANGER! NO SAFE PPE EXISTS. ENERGIZED WORK PROHIBITED. No FR Category Found.?
I?ve been having a hard time finding a direct contact high voltage meter that can verify absence of voltage to less than 50 volts. What is the best practice in this situation?
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