以下是外商作的电缆规格型号的说明:
1. Motor cable (70 meter)for 55KW motor must be min
2. 3 control cables to PTC sensor,space heater and Pressure switch (70 meter for each cable)
3. RS485 cable (70 meter)
4. Earth cable (70 meter)
5. Suitable cable glands for all above cables
还有这两句话不知道是什么意思,请帮我翻译一下:
Suitable RS485 communication cable to be connected from VSD to RTU.
All cables shall be supplied on roll drum to be cut at site with all required accessories( cable terminals ,gland sets, and cable layout warning tape.).
麻烦大家了!