A.无障碍场所开关底边距地面高度宜为0.9~1.1m
B.开关面板底边距地面高度宜为1.3~1.4m
C.拉线开关底边距地面高度宜为2~3m,距顶板不小于0.lm,且拉线出口应垂直向上
D.老年人生活场所开关宜选用宽板按键开关,开关底边距地面高度宜为1.0~1.2m