详情描述

Employees (operators) wearing synthetic clothing and moving around easily generate static discharge. Additionally, the friction, stirring, and movement of packaging products or周转 equipment in high-temperature rooms can also produce static electricity. The static electricity can easily cause electronic components to break down and burn, affecting the accuracy of detection equipment and instruments, and can also cause computer systems to malfunction. The sparks generated by static electricity are sufficient to ignite and explode flammable and explosive gases such as natural gas, oil, and alcohol. Therefore, proper grounding is required for equipment, containers, and pipelines that are prone to static electricity generation, as well as for production processes that are prone to static electricity. Grounding refers to the electrical connection between a specific point in a system, device, or equipment and the local ground (earth). Therefore, the smaller the resistance, the faster the current flows, and the higher the level (or safer) of the equipment (or grade) that can be protected. Moreover, good grounding can effectively reduce static noise in computer systems caused by potential variations.

Types of grounding: including working grounding, protective grounding, anti-static grounding, lightning protection grounding, repeated grounding, equipotential grounding, shielding grounding, signal grounding for electronic equipment, and power grounding for electronic equipment, etc.

In accordance with international and domestic standards: The static grounding resistance values (earth resistance values) are categorized into three grades:

        ①.≤1Ω; ②.≤4Ω; ③.≤10Ω; 

General Requirements:

Communication Working Area: ≤4Ω

Safety Protection Resistance: ≤4Ω

Anti-static grounding: ≤4Ω

Lightning Protection and Grounding: ≤10Ω

Factories or laboratories can choose the appropriate grounding resistance value according to their own environmental requirements.

Recommendation: The ground resistance value for general factories can be required to be ≤10Ω (but it should be ≤4Ω if all equipment needs to be connected), for example, in chemical factories (manufacturing hazardous chemicals) and factories producing and processing flammable and explosive gases, the ground resistance value should be required to be ≤4Ω or higher; for electronic factories, semiconductor factories, inspection laboratories, and computer systems (cleanrooms above 100-level, with electronic components having withstand voltages not exceeding 100V), the ground resistance value should be required to be ≤4Ω or higher.

Guangzhou Liying Antistatic Technology Co., Ltd. has years of experience in the construction and renovation of static grounding and indoor wiring systems. We have professional technical staff and construction teams that can provide technical references based on your production or safety environment, and recommend the appropriate resistance value for the standard level. Welcome all manufacturers and companies to inquire and place orders. Thank you!