Appliance that, according to its design and/or weight, usually is standing on the floor while being in use (so-called floor standing equipment) is subject to the same provision as above.
由于设计和/或自重的原因,使用时经常放在地上的器具(即落地式器具)应同样满足上述规定。(但是也要满足下述规定,注意,其实下边讲的就是对落地式产品的测试布置。)
However,
– it shall be placed on a horizontal metal ground plane (the reference ground plane), but insulated from it by a non-metallic support (e.g. a pallet) of 0,1 m ± 25 % in height. If the measurements are made in a screened enclosure, the distance of 0,1 m ± 25 % shall be
referred to the metal ground of the screened enclosure;
器具应该放在水平金属接地平板上(参考接地平板),但要用高度为 0,1 m ± 25 % 的非金属支撑隔开(例如平板架)。如果测量在屏蔽室内进行。 0,1 m ± 25 % 的距离是指距屏蔽室的金属平面。
– the boundaries of the appliance shall have a distance of at least 0,4 m to a grounded vertical conducting surface of at least 2 m × 2 m in size. If the measurements are made in a screened enclosure, the distance of 0,4 m shall be referred to the nearest wall of the
enclosure。
接地垂直导电平面的尺寸至少是2m*2m;器具的边缘到接地垂直导电平面的距离至少为0.4m。如果测试在屏蔽室内进行,0.4m的距离可以指到最近的墙面的距离。
– the reference ground plane shall extend at least 0,5 m beyond the boundaries of EUT.
参考接地平板至少超出EUT边缘0.5m。
– the V-network shall be bonded with metal straps to the reference ground plane (see CISPR 16-2-1);
V型人工电源网络应用金属带与参考接地平板有良好的连接。
– the reference ground plane shall be bonded with the vertical surface by a low impedance connection.
参考接地平板应通过低阻抗与垂直平面有良好的连接。(一般通过金属带连接) |