Unlock the secret "fire-measuring screwdriver," a small tool that an electrician should know!

⚡ Unlock the secret "fire screwdriver," a little tool that an electrician should know! 🔧

Many people used to use a light-measuring screwdriver, but do you know that inside a simple screwdriver handle are neon bulbs, resistors, and contact sets, working together to help determine if the point has a voltage?

🔌 Easy-to-understand working principle

When the tip of the screwdriver touches an electrical potential point, and the user touches the designed metal part, a small amount of current flows through the circuit inside the screwdriver, causing the neon lamp to light up, so it is used as a sign that the point may be lit.

💡 can you test?

• Check wires with lights

• Helps to separate phase lines and neutrals in some cases

• Check suspected voltage points

• Preliminary inspection before starting electrical work

⚠️ But remember that!

A light-measuring screwdriver is not a 100% safe "no-light" confirmation tool and should not be a substitute for appropriate measuring tools such as multimeters or voltage testers.

Before actual electrical work, power supply should be cut off, lock / prevent turning back, and check that there is no voltage, using the appropriate equipment.

🚫. Caution.

❌ Do not use while wet hands.

❌ Do not use a broken screwdriver or broken insulation.

❌ Do not capture metal parts that are not designed to touch.

❌ Don't assess safety from unlit lights alone.

❌ High-voltage electrical work should be carried out by the knowledgeable person and the appropriate equipment.

📌 Brief summary:

A light-measuring screwdriver is a tool for preliminary inspection, not a certificate of "safe." Working with electricity always requires the correct tools and correct safety procedures.

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