Such as title. Study a night, saw the parallel circuit diagram, the actual operation do not understand the place, I need to install a power equipment, the introduction of two lines (FireWire zero line), I would like to ask whether the two lines are installed to the gate out of the two Root line Can be installed to any place? Power equipment can be directly connected to the 220v line, do not install the socket? I bought a surveillance camera, the adapter's power cord cut, respectively, then the fire line and the zero line, can you? Big god please not stingy, more
The two ends of the wire off with a shake table to see if there is no short circuit.
As well as the requirements of the large diameter of the cable bend on the auxiliary Wan Gan Gan imitation Temple wet wet splash need to produce the site is also a hundred times the origin
If the power cord is DC, it can be parallel to the same line with the communication line laying. And, we have this can transmit the signal line can also transmit DC power supply dedicated cable. On the contrary, if it is alternating current, it must not be with the RS485 signal line with the line! Both parallel to the laying of at least 30CM interval. Otherwise, the RS485 signal line must use armored type dedicated cable. ----------------- extended reading ---------------------- Inverter, power cable, transformer, large Power motors are often accompanied by low-frequency interference, and this interference is made of high-conductivity material shielded cable can not be resolved, including the original imported cable. Only with high permeability materials (such as steel, wire, etc.) to do the shielding layer can effectively inhibit low-frequency interference. The most common method is to cable the steel tube or directly using high permeability materials made of armored cable - ASTP-120Ω (forRS485 & amp; CAN) onepair18AWG, cable diameter of about 12.3mm. Can be used for serious interference, frequent rodents and lightning protection, explosion-proof requirements of the place. When used, the armor layer should be grounded at both ends, the innermost shield must be grounded at one end! Outdoor laying cable lightning is very important! The equivalent interference frequency of lightning is about 100kHz, also belongs to low frequency interference. "GB-94 Building Lightning Protection Design Code" Article 6.3.1: ... in the need to protect the space, when the use of shielded cable when the shield should be at least at both ends and should be in the mine At the equipotential connection, when the system requires only one end to do equipotential bonding, should be used two layers of shielding, outer shielding according to the aforementioned requirements. "GB-2007 Cable Design Code" also has a similar statement.
