How to Use a Volt Stick

When dealing with an electric current, extreme caution should always be exercised. Even a small jolt can be a major pain, so taking the necessary steps to determine whether there is voltage presence when working on a job.

It all comes down to having the right tool for the job. Using a volt stick, it is simple to test for the presence of an electrical current when working on an unknown site or system. Professionals who work around electrical currents regularly depend on the volt stick to provide them with a clear answer so that they can proceed safely.

What is a Volt Stick and How Does it Work?

A non-contact voltage tester, also known sometimes as a volt stick, is a tool that is meant to detect the presence of an AC current. They are small, simple, versatile tools, perfect for detecting electrical currents in any situation. Whether used in an office or industrial building, or at home, this tool can provide clarity and enhance safety.

Volt sticks aren’t designed to do anything else. They are simple and easy to use, so long as you know what to look for. They work without using metallic contact or a test probe to touch the wire. Using a capacitive coupling, the device detects the presence of an electrical field if one is there.

There are two conductors in a capacitor and if there is an AC current, it will flow across them. Using the tool is fast and easy, a must for professionals working with these conditions.

What is the Procedure for Using a Volt Stick?

Properly using a volt stick is quick and easy. First and foremost, test your volt stick on a ‘known live’ or a wire that you know has an electrical current. If you can keep it in the area you are working in, even better. These devices have an audible indicator, and it won’t sound when the batteries are dead and need replacing.

Move the tool close to the object and be certain not to touch any exposed metal with your hand or another part of the body. Should there be voltage present, the audible indicator will go off. There are some that also have a visual indicator that lights up when there is AC voltage detected.

Make sure to double-check your volt stick against a known current again to verify that it works correctly. Proper use of this device can literally save lives, so it is important to know how to use one before testing it against an electrical field.

False Negatives

It is possible that you could get a false negative when using a volt stick. Having said that, there are a few things to be aware of so you can avoid getting a false negative.

For instance, testing against a device that is on a timer switch or remote sensor can throw things off. Security lights or a boiler are great examples. Know what controls the power and ensure that any remote switches aren’t active, or it could provide false results.

Another instance in which you could derive a false positive is when working off the ground. Remember, a volt stick works on the principal of capacitive coupling. You are part of the capacitive circuit and being too far from the ground will break that circuit, causing the volt stick to not work.

It also helps to know that you have a current, working model so be sure to run voltage checks on known currents first. Something as simple as new batteries can save a lot of headache.