求教500KW变频器

我们现在一个项目用到一个500KW的变频器, 老外列出一些电缆要国内采购,

也没按国家标准, 现在正没头绪,有这样几根电缆望高手求教

6.6KV  MCC L1 to ID FAN motor 6.6kv Cable 22mm single core overall screened or 1 3core
6.6KV  MCC L2 to ID FAN motor 6.6kv Cable 22mm
6.6KV  MCC L3 to ID FAN motor   6.6kv Cable 22mm
SRD Drive Cubicle L1 to ID FAN Motor Rota Supply 830v 1000v 325mm 1000v Single core
SRD Drive Cubicle L2 to ID FAN Motor Rota Supply 830v 1000v 325mm 1000v Single core
SRD Drive Cubicle L3 to ID FAN Motor Rota Supply 830v 1000v 325mm 1000v Single core
6.6KV MCC CRD Drive Cubicle to CRD Resistance Bank 1000v DC +   70mm 1000v Single core
6.6KV MCC CRD Drive Cubicle to CRD Resistance Bank 1000v DC _   70mm 1000v Single core
6.6KV MCC CRD Drive Cubicle to CRD Resistance Bank 1000v DC _   22mm Grounding conductor

请问SRD   CRD  是什么,  按国内标准应选择什么样的电缆