结果既然两个网段的总电压均没有超过4.65V,则系统可以正常运行-网段1(2.59< 4.65V)网段2(1.81V<4.65V)
负载百分为总电压除以4.65V。
网段1的负载百分二2.59/465 =56%
网段2的负载百分二181/4.65二卯%
附录内容 725章的详细内容
NEC内容选段理解
以下内容摘自国家电气规程(NEC)725章(1999版本)。此部分内容将影响美国地区的 DeviceNet系统的配置和安装。用户也可能遇到NEC其它章节内容和当地标准的约束。 在安装时也存在非美国地区标准的影响。
圆型(粗缆和细缆)和2类扁平介质
• 2类电路的电源的限制规定
-2类电路的电源为:或者是内部限制型,则无需过流保护:或者为电源和过 流保护装置的组合。
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NARJ210-M5BG Model NARJ210M5BG
KDM10S-07 Model KDM10S07
CDJPB6-5T Model CDJPB65T
AR25-02BG Model AR2502BG
AS4200-G04-XG Model AS4200G04XG
H40 Model H40
HB40 Model HB40
AD48-2 Model AD482
VM430-N01-34R Model VM430N0134R
I-VT307-5D0-01F-Q Model IVT3075D001FQ
NCDMR075-0400 Model NCDMR0750400
CDQ2B20-10DC Model CDQ2B2010DC
Y-10C Model Y10C
LL3VM1-02-DAM00849 Model LL3VM102DAM00849
CDQSB16-5DC Model CDQSB165DC
VHS30-03 Model VHS3003
VR3200-01 Model VR320001
VT307-3DZ-01F Model VT3073DZ01F
D-M9NV Model DM9NV
NC1A400-PS-XB5 Model NC1A400PSXB5
VVFS2000-20A-2 Model VVFS200020A2
VR3100-01G Model VR310001G
VVFS2000-20A-1 Model VVFS200020A1
AR3000-03 Model AR300003
VVFS-2000-20A Model VVFS200020A
NVZ1120-5G-M5 Model NVZ11205GM5
CDQ2B12-10DC Model CDQ2B1210DC
USPP Model
D-F7BV Model DF7BV
D-A39 Model DA39
D-F7NV Model DF7NV
AR2560-03B Model AR256003B
USPP Model
CDQ2B12-25DM Model CDQ2B1225DM
CY2S25-PS Model CY2S25PS
AL30-N03-Z Model AL30N03Z
KQB2L16-G04 Model KQB2L16G04
EX500-IE1-X1 Model EX500IE1X1
VH200-02 Model VH20002
NCQ8A056-050S Model NCQ8A056050S
AR2060-01 Model AR206001
NCGUN20-0725 Model NCGUN200725
CD85N8-20-B Model CD85N820B
AR30-N02H Model AR30N02H
AS-3201F Model AS3201F
DMK6S-04-C1 Model DMK6S04C1
CD85N10-20-B Model CD85N1020B
CDJ2B16-125-B Model CDJ2B16125B
CDQ2A16-5DM Model CDQ2A165DM
AL30-N03-6Z Model AL30N036Z
AS3200-G03D-DPH00750 Model AS3200G03DDPH007
AR20K-N01EH-1YZ Model AR20KN01EH1YZ
D-S791-13 Model DS79113
D-S792-13 Model DS79213
IC9026 Model IC9026
MHL10-PS Model MHL10PS
NAS3001F-11 Model NAS3001F11
VM122-M5-30G Model VM122M530G
NZM103H Model NZM103H
A3750000039 Model A3750000039