Vertiv NetSure 801 AG1 User manual

NetSure 801 AG1 Power Supply System
User Manual
Version
V2.0
Revision date
BOM
December 31, 2017
31013243
Vertiv Tech provides customers with technical support. Users may contact the nearest Vertiv local sales
office or service center.
Copyright © 2017 by Vertiv Tech Co., Ltd.
All rights reserved. The contents in this document are subject to change without notice.
Vertiv Tech Co., Ltd.
Address: Block B2, Nanshan I Park, No.1001 Xueyuan Road, Nanshan District, Shenzhen, 518055,
P.R.China
Homepage: www.vertivco.com
E-mail: [e-mail]

Safety Precautions
To reduce the chance of accident, please read the safety precautions very carefully before operation. The
"Caution, Note, Warning, Danger" in this book and on the product do not represent all the safety points to be
observed, and are only supplement to various safety points. Therefore, the installation and operation personnel
must receive strict training and master the correct operations and all the safety points before operation.
When operating Vertiv products, the operation personnel must observe the safety rules in the industry, the
general safety points and special safety instructions specified in this book.
Electrical Safety
I. Hazardous voltage
Danger
Danger
Some components of the power supply system carry hazardous voltage in operation. Direct contact or indirect contact
through moist objects with these components will result in fatal injury.
Observe safety rules in the industry when installing the power supply system. The installation personnel must be
licensed to operate high voltage and AC power.
In operation, the installation personnel are not allowed to wear conductive objects, such as watches, bracelets,
bangles and rings.
When water or moisture is found on the cabinet, turn off the power immediately. In moist environment,
precautions must be taken to keep moisture out of the power supply system.
"Prohibit" warning label must be attached to the switches and buttons that are not permitted to operate during
installation.
Danger
Danger
High voltage operation may cause fire and electric shock. The connection and wiring of AC cables must be in compliance
with the local rules and regulations. Only those who are licensed to operate high voltage and AC power can perform high
voltage operations.
II. Tools
Warning
In high voltage and AC operation, specialized tools must be used.
III. Thunderstorm
Danger
Danger
Never operate on high voltage,AC, iron tower or mast in the thunderstorm.

In thunderstorms, a strong electromagnetic field will be generated in the air. Therefore the equipment should be
well earthed in time to avoid damage by lightning strikes.
IV. ESD
Note
The static electricity generated by the human body will damage the static sensitive elements on PCBs, such as large-scale
ICs. Before touching any plug-in board, PCB or IC chip, ESD wrist strap must be worn to prevent body static from
damaging the sensitive components. The other end of the ESD wrist strap must be well earthed.
V. Short circuit
Danger
Danger
During operation, never short the positive and negative poles of the DC distribution unit of the power supply system or the
non-grounding pole and the earth. The power supply system is a constant-voltage DC power device, and short circuit will
result in equipment burning and endanger human safety.
Check the polarity of the cable and connection terminal when performing DC live operations.
As the operation space in the DC distribution unit is very tight, please carefully select the operation space.
Never wear a watch, bracelet, bangle, ring, or other conductive objects during operation.
Use insulated tools.
In live operation, keep the arm muscle tense, so that when tool connection is loosened, the free movement of
the human body and tool is reduced to a minimum.
Battery
Danger
Danger
Before any operation on battery, read carefully the safety precautions for battery transportation and the correct battery
connection method.
Non-standard operation on the battery will cause danger. In operation, precautions should be taken to prevent
battery short circuit and overflow of electrolyte. The overflow of electrolyte will erode the metal objects and PCBs,
thus causing equipment damage and short circuit of PCBs.
Before any operation on battery, pay attention to the following points:
1. Remove the watch, bracelet, bangle, ring, and other metal objects on the wrist.
2. Use specialized insulated tools.
3. Use eye protection device, and take preventive measures.
4. Wear rubber gloves and apron to guard against electrolyte overflow.
5. In battery transportation, the electrode of the battery should always be kept facing upward. Never put the
battery upside down or slanted.

BLVD
The system has battery low voltage disconnection (BLVD) optional function. BLVD means when the mains fail
and batteries supply power, the controller cuts the load off when the battery voltage drops down to below 43.2V
to prevent over-discharge. The BLVD voltage is settable. Refer to NCU User Manual for setting method.
The factory setting is enabling BLVD, which means that if power outage lasts for a long time or the power system
fails, there might be BLVD. Users should classify the loads and connect the priority loads to BLVD routes. For
vital loads, users can disable BLVD of these loads to insure reliability of the power supply.
The method of disabling BLVD is:
Set “SMDU LVD”-“LVD1 Enable”item of the controller to “N”. Refer to NCU User Manual for setting method.
Notice
The advantage of enabling BLVD is protecting the batteries from over-discharge when the battery voltage is low. The
disadvantage of enabling BLVD is that when the battery voltage drops down to a certain value, all the loads (including
non-priority loads and priority loads) will be cut off due to battery disconnection.
The advantage of software disabling BLVD is prolonging the power supply of priority loads. The disadvantage is
that software disabling cannot prevent unwanted power failure due to misoperation or power system failure.
Others
I. Sharp object
Warning
When moving equipment by hand, wear protective gloves to avoid injury by sharp object.
II. Power cable
Note
Please verify the cable labels before connection.
III. Signal cables
Note
The signal cables should be routed at least 150mm away from power cables.

Contents
Chapter 1 Introduction.........................................................................................................................................................1
1.1 Model Information.................................................................................................................................................1
1.2 Overview...............................................................................................................................................................1
1.3 Components..........................................................................................................................................................3
1.3.1 DC Distribution Cabinet.............................................................................................................................3
1.3.2 Rectifier Rack............................................................................................................................................9
Chapter 2 Installation Preparation.....................................................................................................................................12
2.1 Installation Requirements ...................................................................................................................................12
2.1.1 Environmental Requirements ..................................................................................................................12
2.1.2 Layout Requirements Of The Equipment Room......................................................................................12
2.1.3 Power Supply ..........................................................................................................................................14
2.1.4 Safety Protection .....................................................................................................................................14
2.1.5 Equipment Running Environment Checklist.............................................................................................16
2.2 Storage Conditions .............................................................................................................................................16
2.3 Installation Preparation.......................................................................................................................................16
2.3.1 Field Check..............................................................................................................................................16
2.3.2 Tools And Materials Preparation .............................................................................................................16
2.4 Unpacking Inspection..........................................................................................................................................18
Chapter 3 Installation ........................................................................................................................................................19
3.1 Safety Regulations..............................................................................................................................................19
3.2 Installing Cabinet ................................................................................................................................................19
3.2.1 Installation On The Floor .........................................................................................................................19
3.2.2 Installation On Supporting Rack..............................................................................................................20
3.2.3 Parallel Connection Between Cabinets....................................................................................................21
3.2.4 Installation Of System Above 3000A.......................................................................................................22
3.2.5 Placing DC Cabinet Separate From System............................................................................................23
3.3 Connecting Power Cables ..................................................................................................................................23
3.3.1 Connecting Earth Cable...........................................................................................................................23
3.3.2 Connecting AC Input Cables ...................................................................................................................24
3.3.3 Connecting DC Load Cables...................................................................................................................25
3.3.4 Connecting Battery Cables......................................................................................................................28
3.4 Installation Checklist...........................................................................................................................................29
3.5 Installing Rectifier And Controller........................................................................................................................30
3.5.1 Installing Rectifier ....................................................................................................................................30
3.5.2 Installing Controller..................................................................................................................................30
3.6 Connecting Signal Cable ....................................................................................................................................31
3.6.1 Connecting CAN Communication Cable..................................................................................................31
3.6.2 Connecting Signal Cables Of IB2 User Connector Board........................................................................31

3.7 Installing Temperature Sensor............................................................................................................................33
Chapter 4 Testing..............................................................................................................................................................34
4.1 Notes On Testing................................................................................................................................................34
4.2 Power-On............................................................................................................................................................34
4.3 Setting Basic Parameters ...................................................................................................................................35
4.3.1 Setting DIP Switch...................................................................................................................................35
4.3.2 Setting Basic Parameters For Monitoring Module ...................................................................................36
4.4 Checking Alarm And Operation Status ...............................................................................................................37
4.4.1 Testing AC Distribution............................................................................................................................37
4.4.2 Testing Monitoring Module ......................................................................................................................37
4.4.3 Testing DC Distribution............................................................................................................................38
Chapter 5 Use Of Monitoring Module................................................................................................................................39
Chapter 6 Adding Load And Rectifier................................................................................................................................40
6.1 Adding Load........................................................................................................................................................40
6.2 Adding Rectifier...................................................................................................................................................40
Chapter 7 Maintenance.....................................................................................................................................................41
7.1 Maintenance Requirements................................................................................................................................41
7.1.1 General....................................................................................................................................................41
7.1.2 Maintenance Tools And Equipments.......................................................................................................41
7.1.3 Reference Technical Specification For Maintenance...............................................................................42
7.2 Routine Maintenance Items ................................................................................................................................43
7.3 Routine Maintenance..........................................................................................................................................44
7.4 Basic Inspection..................................................................................................................................................45
7.4.1 Handling Monitoring Module Fault...........................................................................................................45
7.4.2 Handling Rectifier Fault ...........................................................................................................................45
7.4.3 Replacing SM DU....................................................................................................................................47
7.5 Emergency Treatment ........................................................................................................................................50
Appendix 1 Technical Parameter ......................................................................................................................................52
Appendix 2 Engineering Design Diagram..........................................................................................................................54
Appendix 3 Spare Part List................................................................................................................................................61
Appendix 4 Wiring Diagram...............................................................................................................................................62
Appendix 5 Schematic Diagram........................................................................................................................................68

Chapter 1 Introduction 1
NetSure 801 AG1 Power Supply System User Manual
Chapter 1 Introduction
This chapter introduces the model information, overview and components of the NetSure 801 AG1 power supply
system.
1.1 Model Information
The model information of the NetSure 801AG1 power supply system is shown in Figure 1-1.
NetSure G 1
Version
Region. A: Asia-Pacific region
Output power of the rectifier. The output power of rectifier: 5800W
Brand name of the power supply system
801 A
The number of the rectifier in the typical power system. G: 16
Figure 1-1 Model information of the power supply system
The model information of the NetSure 801 AG1-T1 rectifier is shown in Figure 1-2.
NetSure G 1
System version
Cabinet height. T: 2.2 m
Version
Region. A: Asia-Pacific region
Output power of the rectifier. The output power of rectifier: 5800W
Brand name of the power supply system
801 AT 1
The number of the rectifier in the typical power system. G: 16
-
Figure 1-2 Model information of the recifiter cabinet
The model information of the PD48/2000DD DC distribution cabinet is shown in Figure 1-3.
PD 2000 DD
Power distribution cabinet
-
Power distribution mode: DC power distribution
X1
48 /
Configuration
Output current (2000A)
Output voltage (-48V)
Cabling type: U - top cabling; D - bottom cabling
Figure 1-3 Model information of the DC distribution cabinet
1.2 Overview
The NetSure 801 AG1 power supply system is a new generation of telecom power supply with exceptional reliability
and performance. It is designed by Vertiv incorporating years of experience in development and equipment operation
on power network. The NetSure 801 AG1 power supply system is composed of DC distribution cabinet, rectifier
cabinet, controller, rectifier and options.
The number of DC distribution cabinet and rectifier cabinet can be configured according to customer requirement.
The capacity of the system can be expanded to 5760Aat most. The system composed of one DC distribution cabinet

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NetSure 801 AG1 Power Supply System User Manual
and one rectifier cabinet is shown in Figure 1-4. The configurations of the distribution cabinets and the rectifier
cabinet are given in Table 1-1, and the mechanical parameters are given in Table 1-2
Rectifier rackDC distribution cabinet
Figure 1-4 System structure
Table 1-1 Configurations of rectifier cabinets and distribution cabinets
Cabinet
Model
Configuration
Options
DC distribution
cabinet
PD48/2000DU
Cabling type: top cabling
Maximally configured with 1 battery distribution unit, 6 high ohmic
distribution units (HOD), or 6 low ohmic distribution units (LOD), or 3
fuse units
Top cover
PD48/2000DD
Cabling type: bottom cabling
Maximally configured with 1 battery distribution unit, 6 HODs, or 6
LODs, or 3 fuse units
Rectifier
cabinet
NetSure 801 AG1-T1
Cabling type: top cabling
1. Controller M830D: 1 piece
2. Rectifier R48-5800A,R48-5800e: 2 ~ 16 pieces
3. DC distribution: maximally configured with 1 battery distribution
unit, 2 HODs, or 2 LODs, or 1 fuse unit
Top cover,
temperature
sensor
Table 1-2 Mechanical parameters of rectifier, controller & cabinet
Component
Dimensions
(H × W × D, unit: mm)
Weight (kg)
R48-5800A,R48-5800e rectifier
88 × 244 × 372
＜8
M830D controller
87×6.2×211.2
＜1
PD48/2000DD DC distribution cabinet
2200 × 600 × 600
< 260
PD48/2000DU DC distribution cabinet
2350 × 600 × 600
< 260
NetSure 801 AG1-T1 rectifier cabinet
2350 × 600 × 600
< 270 (excluding rectifiers and controller)

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NetSure 801 AG1 Power Supply System User Manual
1.3 Components
1.3.1 DC Distribution Cabinet
The DC distribution cabinet is available in two models: PD48/2000DU and PD48/2000DD. The appearance of
PD48/2000DD DC distribution cabinet is shown in Figure 1-5. The appearance of PD48/2000DU DC distribution
cabinet is shown in Figure 1-6.
BatteryIIBatteryI BatteryIII LoadI
HOD
LOD
Fuse unit
Power indicator
SM DU monitoring board
Alarm indicator
Battery distribution unit
DC positive busbar
Figure 1-5 PD48/2000DD DC distribution cabinet (panels removed)

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NetSure 801 AG1 Power Supply System User Manual
HOD
LOD
BatteryIIBatteryI LoadIBatteryIII
Fuse unit
Battery distribution unit
Power indicator
SM DU monitoring board
DC positive busbar
Alarm indicator
Figure 1-6 PD48/2000DU DC distribution cabinet (panels removed)
DC distribution cabinet is composed of DC distribution unit and battery distribution unit. See the following descriptions
for details.
DC distribution unit
1. High ohmic distribution unit (HOD)
Dimensions (unit: mm): 132.5 (H) ×584 (W) ×250 (D)
Weight: 9.3kg
Rated current: 200A
The rated current of the MCB is 16A, and the breaking capacity is 10kA. A high ohmic resistor is series connected to
each MCB route. It is recommended that the load current be smaller than 70% of the rated current, that is, 10A. Every
two MCBs can be parallel connected to form a larger power distribution circuit through adding high ohmic resistor and
connection terminals, so as to conduct up to 20A current. The cable cross-sectional area (CSA) of a single circuit
should be at least 4mm2.
Each HOD can be equipped with at most thirty-five MCBs of which the width is 13mm and the capacity is 16A. Each
MCB is series-connected to a 40MΩresistor, as shown in Figure 1-7.
Load MCB
(a) Front view

Chapter 1 Introduction 5
NetSure 801 AG1 Power Supply System User Manual
Negative terminal
Positive terminal
Front
(b) Top view
Figure 1-7 HOD
2. Low ohmic distribution unit (LOD)
Dimensions (unit: mm): 132.5 (H) ×584 (W) ×250 (D)
Weight: 9.3kg
Rated current: 360A
In a standard LOD, the rated current of one MCB can be 6A ~ 40A (breaking capacity 6kA), or 50A~ 63A (breaking
capacity 4.5kA), or 80A ~ 125A (breaking capacity 10kA).
Each LOD can be equipped with at most twenty-eight 18mm MCBs or eighteen 27mm MCBs, as shown in Figure 1-8.
DC positive terminal
Load MCB
Figure 1-8 LOD
3. Fuse unit
Rated current: 1600A
The breaking capacity of NT00, NT2 and NT3 fuses is 100kA. Four types of fuse units are described below:
1) Type 1
Dimensions (unit: mm): 427 (H) ×584 (W) ×353.5 (D)
Fuse unit type 1 is suitable for NT2 and NT3 fuses. It can accommodate at most six NT2 or NT3 fuses, or six fuses
combined of NT2 and NT3 fuses, as shown in Figure 1-9.
Figure 1-9 Fuse unit type 1
2) Type 2
Dimensions (unit: mm): 325 (H) ×584 (W) ×353.5 (D)
Fuse unit type 2 is suitable for NT00 fuses. It can accommodate at most 11 NT00 fuses, as shown in Figure 1-10.

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NetSure 801 AG1 Power Supply System User Manual
Figure 1-10 Fuse unit type 2
3) Type 3
Dimensions (unit: mm): 750 (H) ×584 (W) ×353.5 (D)
Fuse unit type 3 has two layers, and is suitable for NT2 and NT3 fuses. It can accommodate at most 12 NT2 or NT3
fuses, or 12 fuses combined of NT2 and NT3 fuses. This fuse unit is only applicable for bottom cabling DC
distribution cabinet, as shown in Figure 1-11.
Figure 1-11 Fuse unit type 3
4) Type 4
Dimensions (unit: mm): 648 (H) ×584 (W) ×353.5 (D)
Fuse unit type 4 has two layers, and is suitable for NT00, NT2 and NT3 fuses. The top layer can accommodate at
most 11 NT00 fuses. The bottom layer can accommodate at most six NT2 or NT3 fuses, or six fuses combined of
NT2 and NT3 fuses. This fuse unit is only applicable for bottom cabling DC distribution cabinet, as shown in Figure
1-12.
Figure 1-12 Fuse unit type 4
Battery distribution unit
There are two kinds of battery distribution units: battery distribution unit with low voltage disconnection (LVD)
contactor and battery distribution unit without LVD contactor.
1. Battery distribution unit without LVD contactor

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NetSure 801 AG1 Power Supply System User Manual
Dimensions (unit: mm): 298.5 (H) ×554 (W) ×149.7 (D)
Four types of battery distribution units without LVD contactors are provided, as shown in Figure 1-13 to Figure 1-16.
The breaking capacity of the NT4 fuse is 100kA, and the breaking capacity of the MCCB is 10kA. The nominal current
of the MCCB is 600A.
Battery distribution unit type 1 can accommodate fuses, which can be two battery fuses plus two load fuses, or four
battery fuses. The labels of the former are Battery I, Battery II, Load I, Load II from left to right; the labels of the latter
are Battery I, Battery II, Battery III, Battery IV from left to right, as shown in Figure 1-13.
Battery I Battery II Load I Load II
Fuse
Label
Figure 1-13 Battery distribution unit type 1
Battery distribution unit type 2 can accommodate fuses, which are three battery fuses plus one load fuse. The labels
from left to right are Battery I, Battery II, Battery III, Load I, as shown in Figure 1-14.
Battery I Battery II Battery III Load I
Fuse
Label
Figure 1-14 Battery distribution unit type 2
Battery distribution unit type 3 can accommodate MCCBs, which can be two battery MCCBs plus two load MCCBs, or
four battery MCCBs. The labels of the former are Battery I, Battery II, Load I, Load II from left to right; the labels of the
latter are Battery I, Battery II, Battery III, Battery IV from left to right, as shown in Figure 1-15.
Load IILoad IBattery IIBattery I
MCCB
Label
Figure 1-15 Battery distribution unit type 3
Battery distribution unit type 4 can accommodate MCCBs, which are three battery MCCBs plus one load MCCB. The
labels from left to right are Battery I, Battery II, Battery III, Load I, as shown in Figure 1-16.

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NetSure 801 AG1 Power Supply System User Manual
Battery I Battery II Battery III Load I
MCCB
Label
Figure 1-16 Battery distribution unit type 4
2. Battery distribution unit with LVD contactor
Dimensions (unit: mm): 383.5 (H) ×554 (W) ×190 (D)
Three types of battery distribution units with LVD contactors are provided, as shown in Figure 1-17 to Figure 1-19.
Battery distribution unit type 5 can accommodate fuses. The labels of the two battery fuses and two load fuses are
Battery I, Battery II, Load I, Load II from left to right, as shown in Figure 1-17.
Load I Load IIBattery I Battery II
Fuse
Label
Figure 1-17 Battery distribution unit type 5
Battery distribution unit type 6 can accommodate fuses. The labels of the three battery fuses and one load fuse are
Battery I, Battery II, Battery III, Load I from left to right, as shown in Figure 1-18.
Battery I Battery II Battery III Load I
Fuse
Label
Figure 1-18 Battery distribution unit type 6

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NetSure 801 AG1 Power Supply System User Manual
Battery distribution unit type 7 can accommodate fuses. The labels of the four battery fuses are Battery I, Battery II,
Battery III, Battery IV from left to right, as shown in Figure 1-19.
Battery IVBattery IIIBattery IIBattery I
Fuse
Label
Figure 1-19 Battery distribution unit type 7
1.3.2 Rectifier Rack
Rectifier cabinet NetSure 801 AG1-T1 configured with one fuse unit is shown in Figure 1-200.
Alarm indicator
Power indicator
SPD
SM DU monitoring board
DC positive busbar
Battery distribution unit
Fuse unit
Monitoring module
Rectifier MCB
Rectifier
AC input box
Figure 1-20 Rectifier cabinet NetSure 801 AG1-T1
NetSure 801 AG1 power supply system using bottom cabling method should be composed of NetSure 801AG1-T1
rectifier cabinet and PD48/2000DD DC distribution cabinet. The input and output cables of the rectifier cabinet should
be routed through the DC distribution cabinet. It is recommended not to configure the rectifier cabinet with HOD, LOD,
fuse unit or battery distribution unit, so as to reduce the amount of the cables routed through the DC distribution
cabinet.
Rectifier
The system uses rectifier R48-5800A/R48-5800e, the frame structure of which mainly consists of panel, enclosure,
handle, and so on, as shown in Figure 1-21:

10 Chapter 1 Introduction
NetSure 801 AG1 Power Supply System User Manual
Figure 1-21 Rectifier appearance
There are LEDs, slide switch and handle on the front panel, and AC input socket, DC output socket and
communication port on the rear panel. The front panel is shown in Figure 1-22, and functions of indicators are given
in Table 1-3:
Slide switch
Handle
Fixing screw
Power indicator
Protection indicator
Fault indicator
Current indicators
Figure 1-22 Rectifier front panel
Table 1-3 Function of indicators
Indicator
Normal state
Fault state
Fault cause
Power indicator
(Green)
On
Off
No input and output
Flashing
The rectifier is being operated through the host
Protection
indicator
(Yellow)
Off
On
AC input under/overvoltage,
rectifier PFC output under/overvoltage, high-temperature, or current sharing
imbalance
Flashing
Rectifier communication failure
Fault indicator
(Red)
Off
On
Output overvoltage, output fuse blown, or rectifier addresses contradictory
Flashing
Faulty fan
Current
indicators
on
Shows the output current, each LED represents 10A. If the rectifier is in current
limiting state (output current > 100A), the tenth LED will blink. If the output
current of the rectifier is smaller than 2A, no current indicator will be on
Monitoring Module
The front panel of controller M830D is shown in Figure 1-23:

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NetSure 801 AG1 Power Supply System User Manual
10/100M Ethernet port (RJ-45)
USB port
Observation alarm indicator (Yellow)
Status indicator (Green)
Critical or major alarm indicator (red)
Menu navigation keys
Figure 1-23 Controller
There are LCD, functional keys, indicators and handle on the front panel. Functions of LED indicators are illustrated
in Table 1-4.
Table 1-4 Functions of LED indicators
LED
Normal Status
Abnormal Status
Cause
Status indicator (Green)
On
Off
No power supply
Observation alarm indicator (Yellow)
Off
On
The power system has at least an observation alarm
Critical or major alarm indicator (Red)
Off
On
The power system has at least a major alarm or
critical alarm

12 Chapter 2 Installation Preparation
NetSure 801 AG1 Power Supply System User Manual
Chapter 2 Installation Preparation
This chapter introduces installation requirements, storage conditions, installation preparation and unpacking
inspection.
2.1 Installation Requirements
2.1.1 Environmental Requirements
The environmental conditions listed in Table 2-1 must be met when locating the equipment.
Table 2-1 Environmental conditions for the equipment room
Environmental conditions
Recommended range
Ambient temperature
-10°C to 55°C (derating from 40°C )
Humidity
≤90%RH, no condensation
Dust density
≤1mg/m3
Sunlight
No direct sunlight
Corrosive materials
No pollutants, such as salt, corrosive materials, and smoke
Vibration
≤1.5m/s²
Harmful organisms
None
Mould
None
Dampness
The shelter should be waterproof
The equipment may be prematurely damaged if dust or sand accumulates in it. The following measures are
recommended for dirty environment:
1. The equipment should be installed in an airtight and air-conditioned room. The air conditioner filter should be
adequately maintained without being obstructed. To reduce the dust in the equipment room, unattended equipment
room is recommended.
2. Clean the air filter periodically to provide clean air.
2.1.2 Layout Requirements Of The Equipment Room
Air exhaust and ventilation
When the power supply is working, the main exothermic part is the rectifier. To ensure free airflow around the power
supply system, an 800mm clearance must be kept in front of the system.
Cabling
If top cabling is used, wiring rack should be provided in the equipment room. It is recommended that the wiring rack
be at least 300mm above the equipment. For bottom cabling system, cable trough should be provided in the
equipment room, which should be no wider than the spacing between the equipment mounting holes.
Note
To prevent electric coupling, AC cables should be laid separately from DC cables and signal cables.
Antistatic
As for antistatic requirement, the absolute value of the static voltage of the equipment, wall and people to the ground
should be less than 200V. Raised floor or antistatic ceramic tile is highly recommended for the equipment room. The
antistatic earth resistance should be no greater than 10Ω. Care should be taken regarding antistatic during equipment
unpacking, transportation and operation.

Chapter 2 Installation Preparation 13
NetSure 801 AG1 Power Supply System User Manual
Lighting
Lighting in equipment room may be classified into general lighting and partial lighting. General lighting provides light
for the whole room, while partial lighting is installed above the equipment cabinet or workstation to provide light for a
restricted area. It is recommended to provide both lightings in the equipment room.
Clearance
No less than 1.5m of clearance should be kept between the front of the power system cabinet and the wall. No less
than 0.8m of clearance should be kept the sides of the power system cabinet and the wall. No less than 1.5m of
clearance should be kept between the back of the power system cabinet and the front of another piece of equipment.
The back of the power system cabinet can be installed against another piece of equipment. Maintenance passage
should be kept between equipment, which should not be less than 2m wide. Refer to Figure 2-1 for the above
requirements:
No less than 0.2m of clearance should be kept between the battery and the wall, and no less than 0.8m of clearance
should be kept between batteries.
Rack back can
be placed
against the wall
Between rack
back and rack
face ≥1.5m
Rack face
Between rack
side and wall:
≥0.8m
Rack back
Figure 2-1 Locating cabinet
Weight capacity and shockproof
When installing the power system in areas subject to frequent earthquakes, shockproof measures should be taken.
Firstly, expansive bolts should be used to fix the system (refer to 3.2 Installing Cabinet ); secondly, the system
should be reinforced as shown in Figure 2-2 to enhance its shockproof ability. Because the power supply system is
relatively heavy, the weight capacity of the equipment room should meet relative requirements and is determined
based on the equipment configuration.
Figure 2-2 Reinforcing the cabinet for shockproof purpose
Fire protection facility
The power system is stationary equipment, please fixed on concrete or other non-combustible surface. Also enough
space must be kept around equipment from combustible things. The equipment room should comply with relevant fire
protection regulations and requirements for power distribution, and provide adequate fire protection facility, such as
dry-chemical extinguisher and automatically explosive fire protection ball.

14 Chapter 2 Installation Preparation
NetSure 801 AG1 Power Supply System User Manual
2.1.3 Power Supply
General
Mains power should be used as the mainAC source; backup batteries and generator should be provided according to
the actual power source conditions.AC source composed of mains power and user-provided generator should use
centralized power supply mode to supply power, and low voltage AC power supply system should use three-phase
five-line (the neutral line is invalid) mode.
The AC power cables should be copper core cable and sized to suit for the load. It is recommended that the power
cables outside the equipment room should be buried directly under the ground or by means of cable pipe. Power
cables should be laid separately from signal cables.
Capacity requirements
1. Power transformer
Because of the particularity of switch-mode power supply system, the power supply should provide relatively large
redundancy. If the capacity of the power transformer is small, operation of other electric equipment may be affected.
Calculated based on full configuration of the power supply system, the capacity of a dedicated transformer should
exceed 1.25 times of the total capacity of the system. So, considering other electric equipment such as air conditioner,
the capacity of the transformer should be even larger, and the upper capacity level should be selected according to
the specifications.
NetSure 801 AG1-T1 rectifier cabinet is not supposed to be directly connected to the secondary side of a transformer
with capacity greater than 800kVA. An extra distribution cabinet should be used between NetSure 801 AG1-T1
rectifier cabinet and the transformer for shortcircuit protection. NetSure 801 AG1-T1 rectifier cabinet is not supposed
to be directly connected to the secondary side of a transformer with capacity greater than 1000kVA. An extra
distribution cabinet should be used between NetSure 801 AG1-T1 rectifier cabinet and the transformer for shortcircuit
protection.
2. Generator
It is recommended to use generator whose capacity twice that of the power supply system as backup power source.
It should be calculated based on the apparent power. A simple calculation of the generator capacity is: output voltage
(taken as 60V) × output current (take the final configuration) ×2.
The power factor and excitation model of the generator should also be taken into consideration when selecting a
generator. Brushless generator of fundamental wave excitation model should be used with caution.
2.1.4 Safety Protection
Lightning protection & surge protection
The lightning protection and earthing system of telecom stations should comply with relevant standards.
The power supply system is equipped with a Class- C SPD. To achieve better surge protection, it is recommended to
mount Class-B SPD before the AC mains is connected to the system. The mounting of Class-B SPD is shown in
Figure 2-3.
Class-B SPD should be purchased and mounted by the user. If condition permits, it is recommended that the cable
length between the Class-B SPD and the AC distribution unit of the power supply system range between 5 ~ 10m.
And this section of cable should be routed indoors to avoid direct lightning strike. When mounting the Class-B SPD,
attention should be paid to the sectional area and length of the cable connecting the Class-B SPD: the sectional area
should be no less than 25mm2, the cable should be as short as possible, and so is the earth cable of the Class-B
SPD. The SPDs should be inspected periodically to ensure their normal operation.