Static Eliminator for Humans and Vehicles---Electrostatic Discharge Ball With Vehicle Clamp
The static eliminator for humans and vehicles is designed to eliminate static electricity from humans and vehicles (such as cars, forklifts, etc.) at the same time, and is widely used in flammable and explosive places (gas stations, chemical plants, electronics factories, warehouses, etc.). Its main types and working principles are as follows:
I. Main types and features
Vertical/column-type industrial-grade equipment:
Structure: Usually contains a metal/antistatic plastic touch ball (static subconductor material) column, which is highly suitable for human touch, and is equipped with a special grounding wire to connect the metal parts of the vehicle.
Function:
Static safety release: Built-in special resistor to extend the release time, reduce the instantaneous release energy, and prevent sparks.
Sound and light alarm: When the contact is reliable, it prompts to start the release, and prompts again when the release is completed (some models have digital display function).
Human-vehicle synchronization: Connect the metal frame of the vehicle through a spring clamp line or an alligator clip to ensure that the static electricity of the human body and the vehicle is released to the ground synchronously.
Applicable scenarios: Gas station unloading port, flammable warehouse entrance, explosion-proof workshop entrance and other areas that require strict static control.
Portable car/keychain type:
Form:
Small pendant or keychain, usually with strong magnets for easy attachment to car doors or metal parts of the car body.
Principle:
When in use, the human body first touches the eliminator body (usually metal or conductive plastic), and through its internal resistance or direct conduction, the static electricity of the human body is introduced into the earth through the car body.
Features:
Small size, easy to carry, no need for additional power supply. Some are designed to be attached to the keyhole of the car door, so that it is easy to touch and release static electricity before opening the door.
2. Core working principle
No matter which type, its basic principle is based on:
Reliable grounding:
The equipment or vehicle must form an effective conductive path with the earth through the grounding wire/carriage.
Safe discharge path:
Provide a path with lower resistance than air or other paths (usually built-in megohm resistance), so that static electricity can be discharged to the earth slowly and controllably to avoid discharge sparks.
Contact release:
The human body completes static discharge by touching the conductive ball or component on the device. Portable devices are achieved by touching the device with the human body, and then the device touches the vehicle body.
3. Key considerations
Requirements for industrial-grade equipment: Equipment used in hazardous places must comply with explosion-proof standards, and its material (static subconductor), resistance value design and reliability are crucial.
Grounding effectiveness: Whether it is a fixed column or a portable device, ensuring that the vehicle/equipment is well grounded is a prerequisite for eliminating static electricity. Portable devices must ensure that the body part that is adsorbed or touched is bare metal and has good conductivity with the chassis.
Correct use: When using industrial-grade equipment, it is necessary to touch according to the specifications until the sound and light prompts that the release is complete; portable devices must be touched before touching metal parts such as car doors.
Summary: The dual-purpose static eliminator for humans and vehicles provides a safe and controllable grounding path to simultaneously eliminate static electricity on the human body and vehicle, and is a core device for anti-static in flammable and explosive environments. Users can choose industrial-grade fixed equipment or portable products according to the usage scenario, but be sure to ensure reliable grounding and standardized operation.