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标题: 关于2400的问题 [打印本页]

作者: tim_deng 时间: 2011-1-6 12:30
标题: 关于2400的问题
请教一下，NEC2400的电压和电流是多少，发热量如何

作者: lianglyq2006 时间: 2011-1-7 09:22

接入端需要配交流转直流电源柜.

AC220转 -48V

30A(4PIM)

"4. As circumstances permit, use a CV cable (600 V Crosslinked Polyethylene Insulated PVC Sheathed Cable)
between the PBX and the rectifier. A CV cable is stronger than an ordinary IV cable (600 V PVC Insulated
Cable) because of its thicker cover. It is suitable to run along the free-access floor where it is difficult to
protect the cable from damage. To easily identify different cables, use cables of different colors as follows:
? –48 V: Blue (White)
? GND: Red (Black)
? E: Green
Note: The color shown in parentheses is applicable to the UL Specification."

Install the power equipment at the predetermined location using anchor bolts, etc. Install the framework
for the backup batteries. Secure the framework using anchor bolts, etc.
Check the cabling at the primary and secondary sides of the power equipment and the cabling to the
batteries
Confirm that the specifications of the customer-installed AC PDB (NFB capacity, voltage, phase, etc.)
conform to the rectifier specifications.
Confirm that the correct communication ground is available.
Connect the input power cable and grounding cable to the rectifier.
Supply electrolyte to each battery according to the battery’s specifications.
Charge the batteries, after verifying that the rectifier is operating normally

[attach]49203[/attach]
[attach]49205[/attach]
[attach]49204[/attach]
[attach]49206[/attach]

[此贴子已经被作者于2011-1-7 9:35:48编辑过]

作者: yu6188 时间: 2011-1-8 20:34
帮你顶！！！

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