maandusjuhet

Maandusjuhe, also known as an earth wire or ground wire, is a crucial safety component in electrical installations. Its primary function is to provide a low-resistance path for electrical current to flow to the earth in the event of a fault. This is typically a short circuit where a live wire comes into contact with the metal casing of an appliance or piece of equipment.

Without a properly installed maandusjuhe, such a fault could cause the metal casing to become live, posing a severe risk of electric shock to anyone who touches it. The maandusjuhe connects the conductive parts of electrical equipment that are not normally carrying current to the earth connection. When a fault occurs, the current bypasses the user and flows safely to the ground, often triggering a circuit breaker or fuse to disconnect the power supply.

In most modern electrical systems, the maandusjuhe is colored green and yellow or simply green. It is a fundamental requirement for safety in virtually all electrical appliances and fixed installations, especially those with metal casings. Proper earthing is essential for protecting both people and equipment from electrical hazards. It is a key part of an overall electrical safety system.