In rural lighting electrical ready board box in Africa, the neutral line (N row) and the live line (L row) must be strictly separated and arranged, with a spacing of no less than 15mm for electrical clearance and creepage distance under low voltage conditions of 220V/380V. Considering the high temperature, high humidity, and dusty environment in Africa, it is recommended that the actual installation spacing be no less than 20mm.
1、 The core reason why it must be arranged separately is 1 The normal potential of the neutral wire for safety isolation (anti short circuit, electric shock) is close to the ground potential, and the live wire is a charged phase conductor. The merging arrangement is prone to zero fire breakdown and short circuit caused by insulation aging, moisture, and dust accumulation, leading to fires and equipment burnout; Separating arrangements can completely eliminate such risks, especially suitable for harsh rural environments in Africa. two According to the mandatory requirements of low voltage distribution standards (GB 50054, IEC 60364) and commonly used IEC/British electrical codes in Africa, the N and L rows must be separated and physically isolated. The N row must be insulated from the box, and the L row must be independently fixed. It is strictly prohibited to share terminals or mix rows. three Separate anti-interference and easy operation and maintenance wiring to reduce electromagnetic interference and ensure circuit stability; The color codes (live yellow/green/red, neutral light blue) are clearly distinguished for easy maintenance and troubleshooting by local electricians in Africa.
2、 Spacing standard (suitable for rural environments in Africa) - Electrical clearance (air distance): 220V/380V system ≥ 15mm - Creepage distance (insulation surface path): ≥ 15-20mm - African rural reinforcement standard: Due to high temperature, high humidity, high dust, and unstable voltage, it is recommended to install a spacing of ≥ 20mm, and insulation partitions should be added if necessary to enhance safety redundancy. 3、 Installation points (adaptation to African scenarios) - L-row and N-row are fixed side by side/layer, running horizontally and vertically without crossing or winding - N-row and metal box are fully insulated, L-row independent bracket is fixed - wire crimping is firm, copper core is not exposed, and moisture-proof, dustproof, and anti-corrosion treatment is done