22 Appendix 1 Technical And Engineering Data
NetSure 731 A91 Subrack Power System User Manual
Lightning
protection
features
The AC input side can withstand five times of simulated lightning surge current of
20Ka at 8/20µs, for the positive and negative polarities respectively. The test
interval is not smaller than 1 minute. It can also withstand one event of simulated
lightning surge current of 40Ka at 8/20µs.( At least two modules per phase)
The DC input side can withstand five times of simulated lightning surge current of
20Ka at 8/20µs, for the positive and negative polarities respectively. The test
interval is not smaller than 1 minute. (At least two modules)
Conform to IEC60950-1 standards
≤ 60db (A) (When the ambient temperature is lower than 25°C)
At temperature of 25°C ± 5°C and relative humidity not bigger than 90%RH,
apply a test voltage of 500Vdc. The insulation resistances between AC circuit and
earth, DC circuit and earth, and AC and DC circuits are all not less than 2MΩ
(Remove the SPD, controller and rectifiers from the system before the test.)
AC loop to DC loop can withstand 50Hz. AC to DC circuits: 3,000Vac; or 4,242Vdc
for one minute, leak curren≤10mA , without puncturing and electric arcing;
AC circuit to earth: 50Hz, 1,500Vac; or 2,121Vdc for one minute, leak
curren≤10mA , without puncturing and electric arcing ;
DC circuit to earth: 50Hz, 500Vac; or 707Vdc for one minute, leak curren≤10mA ,
without puncturing and electric arcing ;
Auxiliary circuit without connecting to the main circuit directly: 50Hz,500Vac; or
707Vdc for one minute, leak curren≤10mA , without puncturing and electric
arcing ;
Compliant with R6 requirement
Standard dimensions of the
subracks:
M830B: 43.4mm×210.3mm×85.9mm
M530B: 43mm×86mm×210mm
R48-3000e3: 41mm×84.5mm×330mm
R48-3500e3:41mm×84.5mm×330mm
Subrack (package,rectifier and
controller are all included)
Subrack (without
package,rectifier and controller
included)
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