E
30 Posts in this encyclopedia categoryE‑Standard
E‑standards are norms specifically developed for electrical engineering and electronics. They are typically created by international and national standardization bodies such as the International Electrotechnical Commission (IEC), the European Committee for Electrotechnical Standardization (CENELEC), and the German Institute for Standardization (DIN). E‑standards define technical specifications, test procedures, and safety regulations for electrical and electronic products and systems.
Edge Clamp
An edge clamp is a special clamping tool used to securely fix workpieces at their edges during gluing, machining, or assembly. It is mainly used in woodworking and furniture making to ensure precise and stable joints.
Einsteinium
Einsteinium is a chemical element with the symbol Es and atomic number 99. It is an actinide and a radioactive metal. The element was discovered in 1952 and named after Albert Einstein.
Elastane
Elastane, also known by the brand name Spandex, is a synthetic fiber renowned for its exceptional elasticity and stretchability. It is commonly used in the textile industry to make clothing more comfortable and adaptable. Elastane is often blended with other fibers to enhance their wear characteristics.
Electric Screwdriver
Electric screwdrivers are powerful tools used for quickly and efficiently driving in and removing screws. They are widely used in both DIY and professional construction. Electric screwdrivers save significant time and reduce physical effort compared to manual screwdrivers.
electric shock
Electric shock refers to the physiological effect that occurs when electrical current flows through the human body. This can lead to a variety of health problems, ranging from minor injuries to severe burns, cardiac arrest, or even death. Electric shocks often occur through direct contact with live wires or appliances, or through improper handling of electrical installations.
Electrical Discharge Machining (EDM)
EDM, also known as spark erosion or electrical discharge machining, is a manufacturing process in which material is removed from a workpiece through electrical discharges. This method is commonly used to produce complex shapes and fine details in hard or difficult-to-machine materials.
Electroplating
Electroplating is an electrochemical process in which a thin metal layer is deposited onto a conductive workpiece. This process serves both to protect against corrosion and to improve aesthetic properties as well as increase surface hardness. Common metals used in electroplating include zinc, nickel, chromium, silver, and gold.
Electrostatic Discharges
Electrostatic discharge, or ESD, is a phenomenon where a static electric charge is transferred between two objects. These discharges can damage sensitive electronic components and are therefore a critical concern in electronics manufacturing and handling.
embrittlement
Embrittlement refers to the process by which a material loses its original toughness and becomes brittle, meaning it fractures or cracks under stress rather than undergoing plastic deformation. This process can be caused by various factors such as aging, chemical influences, cold, or radiation. Embrittlement commonly occurs in metals, plastics, rubber, and other materials and poses a significant risk to the integrity of components and structures.
Emergency Doctor Response Vehicle
An Emergency Doctor Response Vehicle (EDRV) is a specially equipped vehicle designed to quickly and safely transport an emergency doctor to the scene of an emergency. It is equipped with medical devices and medications necessary for the initial treatment of emergency patients. The EDRV usually accompanies an ambulance (RTW) or another rescue vehicle to ensure emergency medical care directly at the scene.
Emergency Medical Services
Emergency Medical Services (EMS) is an important component of emergency and healthcare systems, responsible for the medical first aid and transport of patients in emergency situations. EMS works closely with fire services, police, and other aid organisations to ensure fast and effective assistance. Emergency medical services include both ground-based services with ambulances (RTW) and patient transport vehicles (KTW), as well as air-based services with rescue helicopters.
Emergency Power Generator
An emergency power generator is a device that serves as a temporary power source during a power outage. It is commonly used in homes, businesses, and public institutions to maintain the operation of critical equipment and systems. Emergency generators are essential for ensuring operational continuity in emergencies.
Enamel
Enamel is a glass-like coating applied to metals, ceramics, and glass to create a decorative and protective surface. This coating is produced by applying and firing powdered glass at high temperatures. Enamel is known for its durability, hardness, and resistance, and is used in many industrial and artistic applications.
Epoxy Resin
Epoxy resin is a versatile and widely used material applied in numerous industrial and craft applications. It is a thermosetting plastic composed of epoxy resin and a hardener. When cured, it forms a solid, highly durable structure.
Equipment Tender
An equipment tender (ET) is a specialised fire service vehicle primarily used to transport specific equipment and tools for technical rescue operations or other focused tasks. There are various types—such as ET‑L (Logistics Tender), ET‑G (Hazmat Tender) or ET‑W (Water Rescue Tender)—each tailored to different operational scenarios.
Erosion
Erosion refers to the process by which soil, rock, or other surface materials are worn away and transported by natural forces such as water, wind, ice, or gravity. This process can significantly alter landscapes over long periods and plays a key role in geology and environmental science. Erosion can occur naturally or be accelerated by human activities.
Erosion Risk
Erosion risk refers to the likelihood that soil, rock, or other surface materials will be worn away by natural processes such as water, wind, or ice. This risk can be especially significant in agricultural, coastal, or mountainous regions and often leads to soil degradation, loss of fertile land, and habitat deterioration.
Evacuation
An evacuation is the organized and safe clearing of an area, building, or vehicle to protect people from an immediate danger. This measure is taken in the event of threats such as fires, natural disasters, chemical accidents, or other emergencies that endanger the lives and health of those affected. The goal of an evacuation is to bring people to safety in time and minimize the risk of injury or death.
Explosion
An explosion is a sudden, violent event in which a large amount of energy is released in the form of heat, pressure, and light. This process often results in the destruction of materials or structures. Explosions can be caused by chemical reactions, physical processes, or nuclear events, and occur in various contexts such as industry, military, or nature.
Explosion-Proof (Ex-Protected)
The term "ex-protected" refers to devices and equipment specifically designed to be safely operated in potentially explosive environments. These devices are constructed so that, under certain conditions, they do not act as an ignition source and therefore cannot ignite explosive atmospheres. "Ex-protected" stands for "explosion-proof" and is a key safety aspect in industries working with flammable gases, vapors, dusts, or liquids.
Explosive Detector
Explosive detectors are specialized devices designed to detect and identify explosive substances. These detectors are used in various security-sensitive areas, including airports, border controls, public events, and military operations. Their main task is to identify potential threats from concealed explosives at an early stage, thus ensuring the safety of people and infrastructure.
Explosives disposal robot
Explosive Ordnance Disposal Robots are specialized remote-controlled machines used by security forces and the military to defuse and remove explosives and other hazardous materials. These robots are an important tool in modern security and counterterrorism operations, as they enable bombs and other threats to be neutralized from a safe distance while minimizing the risk to human responders.