2.2 代号

    ATSE 自动转换开关电器 automatic transfer switching e-quipment
    EMC 电磁兼容性 electromagnetic compatibility
    EMI 电磁干扰 electromagnetic interference
    HDTV 高清晰度电视 high definition television
    LPZ 防雷区 lightning protection zone
    PA 主赛区（比赛场地）principal area
    SELV 安全特低电压系统 safety extra-low voltage
    TA 总赛区 total area
    TSE 转换开关电器 transfer switching equipment
    TV 标准清晰度彩色电视 television
    E_h 水平照度 horizontal illuminance
    E_v 垂直照度 vertical illuminance
    E_vmai 主摄像机方向垂直照度 vertical illuminance in the direction of main camera
    E_vaux 辅摄像机方向垂直照度 vertical illuminance in the direction of auxiliary camera
    GR 眩光值 glare rating
    R_a 一般显色指数 general colour rendering index
    STIPA 扩声系统语言传输指数 speech transmission index for public address system
    T_cp 相关色温 correlated colour temperature
    U₁最小照度与最大照度之比 the ratio of minimum illuminance to maximum illuminance
    U₂最小照度与平均照度之比 the ratio of minimum illuminance to average illuminance
    UGR 统一眩光值 unified glare rating