What is the meaning of SC15WCCC to SCE in electrical drawings?
Listen to your description of your speaker for the dual 12v power supply (- +12), and now the computer power supply can only achieve +12 v power supply, even if there is -12v power supply, power supply is relatively weak. So you can only choose to buy a cow (transformer) with dual 12v AC output can be used. This power supply in the audio amplifier is also quite a lot. Black line for the gnd point, the remaining two red casually then line, there are rectifier power amplifier inside. hope this helps.
Building electrical drawings SC15WCCCSCE is the line laying mode code. SC15: wear Φ15mm welded steel pipe. WC: dark laid in the wall. CC: dark laid in the ceiling. SCE: ceiling laying, wear metal pipe.
Do not recommend this access, if the computer accessories are more, such as multiple hard drives, discrete graphics, more than one memory, the need for more power supply, external speakers may cause the power can not give the host enough power, in serious cases Affect the drive, hard disk to read data, and even cause hard disk bad sectors, it is worth the candle. Serious suggestion not to do so.
to determine the direction: According to the building layout plan, combined with air conditioning lines and electrical pipelines and other settings, easy maintenance, and cable routing to determine the cable bridge the best route
