求翻译：17. 研发楼的电子信息系统的雷电防护等级为B级。用于电源线路的浪涌保护器标称放电电缆参数值应满足《建筑物电子信息系统防雷技术规范》GB50343-2004中相关的规定。是什么意思？

17. Lightning protection level of R & D building electronic information system is b. Nominal the discharge cable parameter value should meet the Building lightning protection of electronic information systems technical specifications gb50343 the relevant provisions for power-line surge protector

17.R&D Building in the electronic information system for lightning protection B level. For the power supply line of surge protectors nominal discharge cable parameter value should be the building meet electronic information system mine specifications of 50,343 - 2004 GB related provisions in.

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17. electronic information system research and development building lightning protection grade is b-class. Nominal discharge surge protective device for power supply line cabling parameter values should meet the GB50343-2004 of the building electronic information equipment system protection specific

17. The research and development building electronic information system thunder and lightning protection rank is the B level.Uses in the power source line the surge protector nominal electric discharge electric cable parameter value being supposed to satisfy the stipulation which "Building Electroni