Check whether the insulation resistance and the dielectric strength of the electric devices attached to the panel and equipment body are sufficient.
检查一下控电板和设备体上的那些电器设备，看看他们的绝缘电阻和绝缘强度是否合格。
2
Other parts of the insulation system, for example requirements for solid insulation and for electricstrength testing, must be capable of withstanding the higher transient voltages (see IEC 60664-1).