A.280lx,6.5W/m2 B.311lx,7.2W/m2 C.373lx,8.6W/m2 D.466lx,11.2W/m2
A.400W B.480W C.560W D.700W
A.降低一級照度值 B.適當(dāng)降低輔助工作面和通道的照度 C.采用光效更高的光源或燈具 D.改變布燈,適當(dāng)降低計(jì)算的照度,但不低于450lx