In homes, the best height for installation is about 1. The distance between a distribution board and a switch box shall not exceed 30 meters. Environmental Safety Environmental safety refers to the safety requirements for. In this guide, we'll break down everything you need to know to install a distribution box correctly and confidently. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Check for proper IP/NEMA ratings and material quality. Generally, distribution boxes can be divided into three levels of secondary protection, that is, three levels of distribution boxes: general. These guidelines provide you with information on the installation of electricity mains, services, streetlamps, and other parts of our electricity networks. Electrical equipment is installed under the switch box, forming a three-level distribution. "Two level protection" mainly refers to the use of leakage protection measures.
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