7.3.1.20.4 If the appliance consists of indoor and outdoor units (split type), the length of connecting refrigerant pipe shall be 5 m ± 0,3 m and the pipe shall be shaped like a coil with a diameter of approximately 1 m. If the pipe length cannot be adjusted, it shall be longer than 4 m, but not longer than 8 m. For the measurement of disturbance power on the connecting leads between the two units, the leads shall be separated from the refrigerant pipe and extended to accommodate the clamp measurement. For all other measurements of disturbance power and disturbance voltage the connecting leads between the two units shall be routed along the refrigerant pipe. Where an earthing conductor is required, but not included in the mains lead, the earthing terminal of the outdoor unit shall be connected to the reference ground (see 5.2.1, 5.2.2 and 5.2.3). The artificial V-network shall be situated at a
distance of 0,8 m from the unit (either the indoor or outdoor unit) which is connected to the mains network. Depending on the maximum length of leads , other than the mains lead, the starting frequency for the terminal disturbance voltage measurement on these leads is given by the formula specified in sub-Clause 5.2.3.
如果器具包括室内机和室外机(分体式),制冷剂连接管的长度应为5 m ± 0,3 m ,并且将连接管绕成直径约为1m的圈。如果连接管的长度不能调节,它应长于4m但不长于8m。对于室内外连接线的骚扰功率测量,应将连接线与制冷管分开并延长以满足吸收钳测量。对于其他的骚扰功率和骚扰电压的测量,两部分的连接线应沿管子不知。当有不属于电源引线的接地线要求时,室外机的接地端子应连接到参考地上(见5.2.1, 5.2.2 和 5.2.3)。V型人工电源网络应放置距连接到电网的器具(室内机或室外机)0.8m的距离处。除了电源引线外,其他引线上端子骚扰电压测量起始频率由5.2.3规定的公式给出。
NOTE If no specific information about the length of auxiliary leads is given by the manufacturer, it can be assumed that their length is always greater than 2 m but less than 30 m.
注:如果制造商没有特别规定辅助引线的长度,则可以假定引线的长度总是大于2m,但是小于30m。 |