The correct size of cable depends on the length of the cable run, as well as the voltage and current. Another consideration is what voltage loss is acceptable ? Safest answer would be to use a cable sizing table or online tool: http://www.solar-wind.co.uk/cable-sizing-DC-cables.html
Hope that helps.
G.
In a 48V DC system you ground the positive to 0V so the live wire will be -48V.
how to know dc cable sizes
always think of any supply system so : RED = MOST POSITIVE BLACK = MOST NEGATIVE in a telecom system the -48V supply is refferenced to ground and earth, so the supply wire is NEGATIVE, this means a DC supply most positive signal the RED wire, go to EARTH = ZERO, the BLACK wire is the MOST negative, so in this case it is -48V
This is bcoz we need -48V for Gsm BTS, -48 DC is used to control Fluctuation So the main function of this is 1) To convert AC to DC 2) To control overloading
It depends on the length of th cable and the diameter of the copper cable used.
In a 48V DC system you ground the positive to 0V so the live wire will be -48V.
how to know dc cable sizes
always think of any supply system so : RED = MOST POSITIVE BLACK = MOST NEGATIVE in a telecom system the -48V supply is refferenced to ground and earth, so the supply wire is NEGATIVE, this means a DC supply most positive signal the RED wire, go to EARTH = ZERO, the BLACK wire is the MOST negative, so in this case it is -48V
This is bcoz we need -48V for Gsm BTS, -48 DC is used to control Fluctuation So the main function of this is 1) To convert AC to DC 2) To control overloading
because the termination and relays in side the telecoms penal needs for DC supply to continues the protection equipment and relay and purpose of telecoms
It depends on the current requirement. Specify an application or describe what is being powered by the 12 V to get an answer.
Like to run on a DC powered machine? Probably the easiest and safest way would be to buy a standard power inverter.
By BTS, do you mean Base Transceiver Station? Such equipment can be found in cell phone towers. Usually a BTS runs on 48V DC.
There is insufficient information in the question to answer it. You did not provide the size (gauge) of the cable. Please restate the question.
It depends on the length of th cable and the diameter of the copper cable used.
Yes, what matters is that the cable can take the correct voltage, and is thick enough to carry the required current, but ac or dc makes no difference.
With the proper cap configuration on the DC cable, yes it physically can be done. If there is a DC load connected to the end of the DC cable, the load would be destroyed by the application of AC voltage being applied to it. Why anyone would consider doing this type of procedure is anyone's guess.