A patch panel (also known as a power strip) is the most common electrical accessory in daily life and industrial production. It expands the number of sockets to achieve simultaneous power supply for multiple devices, and is the "intermediate hub" that connects power sources and electrical equipment. Seemingly simple wiring boards have a direct impact on electrical safety in terms of their quality. Poor quality or improper use of wiring boards is often a major cause of electrical fires, so it is crucial to choose and use qualified wiring boards.

The core guarantee of high-quality wiring boards lies in safety design and material selection. In terms of material, the shell should be made of PP or PC flame-retardant engineering plastic. These materials are not easy to burn when exposed to high temperatures or short circuits, and can effectively block the spread of fire; The internal wires should be made of pure copper wire, which has good conductivity and low heat generation. The cross-sectional area of the wire should match the rated power. Generally, the cross-sectional area of the wire in the 16A specification terminal block should not be less than 1.5mm ² to ensure the load-bearing capacity. In terms of safety structure, qualified wiring boards need to have the 3C certification mark, which is a basic requirement for products to comply with national standards; Simultaneously equipped with anti electric shock protection doors to prevent children from accidentally touching the socket; Some high-end products also integrate overload protection, lightning protection, surge protection and other functions. When the total power exceeds the standard or voltage fluctuations occur, it can automatically cut off power, ensuring comprehensive electrical safety.

The risks of using wiring boards mainly come from three aspects: firstly, overloading electricity. The rated power of household wiring boards is mostly 2500W. If high-power devices such as electric kettles and microwave ovens are connected at the same time, it will cause overheating of the circuit and lead to short-circuit fires; Secondly, inferior products are used. Some "three no" wiring boards use aluminum wire instead of copper wire, and the shell is made of non flame retardant material, which is prone to malfunction during use; The third issue is exceeding the service life. The recommended service life for the terminal block is 3-5 years. Aging terminal blocks may cause problems such as loose sockets and blackened shells, posing a high risk of continued use. In addition, the country has already banned the production of "universal power strips". These types of power strips are designed to adapt to different plugs, have a small contact area, and are prone to arcing and high temperatures when powered on. The risk of fire is much higher than that of ordinary power strips, and they need to be replaced immediately if needed at home.

The requirements for wiring boards vary in different scenarios. For home use, regular models with independent switches and overload protection can be selected and placed in dry and ventilated areas; Special models with a waterproof rating of IP44 or above should be selected for damp environments such as kitchens and bathrooms; In industrial scenarios, it is necessary to use industrial grade wiring boards with high rated power and high protection level. When using, it is necessary to remember the principle of "dedicated plug and dedicated", and high-power electrical appliances should use separate dedicated terminal blocks; When unplugging, avoid pulling the wires to prevent internal circuit breakage; Do not touch the wiring board when your hands are wet. When the equipment is not in use, turn off the switch or unplug the plug in a timely manner to develop safe electrical habits.