The safety norms of connectors between LED modules, it makes detailed provisions on these aspects of LED module connector such as classification, marking, shock protection, terminal blocks, grounding device, structure, moistureproof, insulation resistance and dielectric strength, mechanical strength, Screws, current-carrying parts and connectors, creepage distances and clearances, durability, resistance to heat and fire, residual stress and corrosion resistant, anti-vibration performance and so on.