A fluorescent luminaire with the construction described in Clause 15.1.1 and provided with a removable cover for access to conductors shall not be required to be subjected to the factory dielectric voltage-withstand test.是什么意思_A fluorescent luminaire with the construction described in Clause 15.1.1 and provided with a removable cover for access to conductors shall not be required to be subjected to the factory dielectric voltage-withstand test.在线翻译_英语_读音_用法_例句