Energy Shelters V2[1].1

7/27/2019 Energy Shelters V2[1].1

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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Construction

Primary

Procedures Chapter 1Equipment Room

System Construction

1. Installing Shelter

2. Equipment Room Power

Distribution

Greenf ield SiteEquipment Room System


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Install the

base

Install

guide railInstall

wallboardInstall

top frame

Next step

Install

top plate

1. Installing shelter

Self-supporting tower - equipment room system construction

Install

floor

Install

antistatic

floor

Install

bottom

plate



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Installing shelter - primary tools

Adjustable wrench Percussion drill MultimeterScrewdriver

Steel tapeSteel saw Horizontal ruler Torque spanner



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Installing shelter - primary auxiliary materials

Antistatic copper foil Expansion bolt

Plastic welding rod Sealant



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Note: 1. The parts of the base are connected with bolts that expose two to three threads after being fastened.2. Once the base is installed, it must be measured horizontally and with diagonal, at a variation within2 mm.

3. The base spacing is allowed to have a variation of1 mm.

4. The spacing should be measured at the same.

5. Spacing is the central distance between two adjacent angles.

6. To measure the spacing is to make sure the shelter base is a rectangle or square (each angle is a right angle).

Installing shelterinstalling shelter base

Measuring

diagonal



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Installing shelterinstalling bottom plate

Note: 1.The bottom plate is assembled with several boards that are tightened on H-shaped steel.

2.The bottom plate is fixed with tapping screws that are staggered at a spacing of 200 mm.



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Note: 1.After the bottom plate is installed.

2.Install the guide rail by connecting with the bottom plate through long screws in a nice looking and leveled

manner.

3.The gaps between the guide rail and the bottom plate should be regulated under 5 mm, and two or three threads

should be exposed after the screws are tightened.

Installing shelterinstalling guide rail

Gaps between

guide rail and

bottom plate 5

mm



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Note: 1. Wallboards are connected to each other by H-shaped aluminum and fixed with rivets that are staggered at a

spacing of 200 mm.

2. Each wallboard is fully embedded into the base and the connections should be painted with waterproof

glue evenly and completely.

Installing shelterinstalling guide rail



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Note: 1.The top frame is connected to the flange on the column by bolts.

2.The wallboards and top frame should be checked for verticality before the bolts are tightened, and those bolts

exceeding the top frame should be leveled.

3.The wallboards and top frame are connected with rivets in a reliable, leveled and beautiful manner.

Installing shelterinstalling top frame

Flange on the

column



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Note: 1. Waterproof trough (in stainless steel structure)

should be installed for top plate at its joints with rivets (Figure 1)

at a spacing of 200 mm between rivets that should be staggered.

2. And the connection between waterproof trough

with color steel plate (pressed and colored) should be brushed

evenly with waterproof glue.

Installing shelterinstalling top plate

Water proof

trough

Figure 2

Figure 3

Top plate joint

Install waterprooftrough

One of

top plates

Figure 1



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Note: The battens for wrap angles, seams and blank holders must be secured firmly and pressed flatly without any gap at

ends.

Wrap

angle of

shelter

Installing shelterinstalling batten

Batte

n

Edges at

the ends of

batten



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Note: 1.The walls drilled with wrong holes must be made up with waterproof and corrective measures, without

affecting its function.

2.Failure to take corrective measures for wrong holes drilled will lead rain water into the walls, thus

affecting the service life and functions.

Wrong holes

drilled

Installing shelter

Wrong bolts

fixed

Incorrect

MethodGreenf ield SiteEquipment Room System


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Note: 1.Once all shelter parts are installed, clean the floor and lay copper foils on it to build a copper mesh.

2.The copper foil can be stuck on the shelter floor or cover a layer of wood plates which should be sealed tightly.

3.The number of copper foils is subject to the area of the room, but the spacing between horizontal and vertical directions as

per design requirements. Use copper foil to cover the wall foundation near the grounding copper bar to form a thin copper strip and a certain

length of copper strip is reserved to be exposed on the ground surface to connect with the grounding copper bar (or tape-controlled angle

steel or aluminium batten).

Installing shelterinstalling antistatic floor

Copper

foil

reserved

Thin copper

strip, 5 cm to

10 cm from

ground



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Note: 1.Apply the rubber evenly on a PVC antistatic

floor with rubber friction tool and wait for 15 minutes

before laying the antistatic floor

2. Keep the floor clean.

Antistatic

floor

PVC

Antistatic

floor

PVC



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Note: 1.In figure 1, the reserved length of copper foil is not enough so that the connection with batten is not stable.

2.In figure 2, applying rubber on the bottom plate may easily involve dusts, staining the floor and

compromising the effect of antistatic floor ad the installation.

Incorrect

Method

Apply rubber on

the bottom plate

directly

Reserved copper foil

length not enough

Figure 1 Figure 2



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Note: 1. Each PVC antistatic rubber should be closely connected (size of PVC near the wall foundation should be

measured and cut in advance).

2. After installing the antistatic rubber, apply sealant rubber evenly and squarely on the perimeter and the

seams of walls.

3. Figure 1 Applying sealant

4. Figure 2 Part of sealant is leveled.

Figure 1 Figure 2



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Note: Level the sealant above ground with blade to be aligned with floor surface.

Figure1 Figure2



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Note: 1.The indoor grounding copper strip is made of the

same materials for horizontal grounding of grounding grids, ata size of 25*3 mm.

2.The grounding copper foil extension (batten) on

the anti-lightning grounding board is connected with the walls

using screws and connected with outdoor grounding grids.

Grounding

copper strip in

shelter

Grounding copper

strip in shelter

Connection of grounding

copper strip with

grounding grids



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Note: 1.The installed antistatic floor should be leveled with evenly distributed wires. (PVC floor is actually

conductive floor.

2.Recommendation is to have a resistance of not lower than 1.0*106ohm, and the viscose used is also a

non water soluble conductive rubber to conduct static electricity).



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2. Equipment room

power distribution

Feederwin

dow

Cablingr

ack

ACDB

ACdistribu

tion

cabinet

AVR

Laying

of

powerca

bles

Switchoutletand

emergencylightsfor

indoorlighting

Outdoorlig

hting

Alarm

system

Intelligent

ventilationsystem

Airconditioningsystem

Firefightingsystem

Grounding

system

31 2




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2. Equipment room

power distribution

ACDB

ACdistribution

cabinet

AVR

Layingofpower

cables

Switchoutletand

emergencylightsfor

indoorlighting

Outdoorlighting

Alarmsystem

Intelligentventilation

system

Airconditioning

system

Firefighting

system

Grounding

system

1 32

Feederwindow

Cablingrack




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Power distribution in equipment room -(1)installing feeder window

Notes: 1. The opening of feeder window should meet design requirements and the

following principles:

2. Take a comprehensive consideration of the opening direction of equipment

room doors and position of tower to get a straight line for the feeders and connect the

connectors of feeder 7/8 and 1/2 by opening the feeder window towards to the tower

wherever possible.

3. The feeder window should be placed where the feeders are connected

behind the soft jumper to get the soft jumper straight to the main equipment.

4. Install the feeder window stably and tightly.



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Power distribution in equipment room - (1)installing

feeder window

Notes: 1. Figure 1 shows the cross-section of outdoor feeder window in which M8 expansion bolts are used to

secure the sealing bottom plate.

2. Figure 2 shows front view of outdoor feeder.

Feeder penetration

sealing bottom plate

Various sealing devices

Fastening hoop

Plate sealing cover

M8 expansion bolt

Figure2Figure1



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Power distribution in equipment room - (1)installing feeder window

Note: 1.Insert the penetration sealing board

2.The outdoor part of feeder window, into the pre-chiseled window on the wall (according to design

requirements)

3.Use rivets between outdoor feeder window plate of unit equipment room and walls.

Rivet Closing plug

for feeder

window



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Note: 1. When the penetration sealing bottom plate is installed inside the feeder window.

2. The indoor sealing bottom plate is located inside the outdoor sealing bottom plate (the external diameter

of outdoor penetration sealing bottom plate is greater than that of indoor one.

3. So the outdoor one is installed against the wall) to guard against water.

Inside

feeder

window

Indoor sealing

bottom plate



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Note: 1. When the installation is finished.

2. Sealant should be applied at the external part of feeder window.

3. For tight sealing the sealant should be spread evenly and tidily.

The outside of the feeder

window is closed with

sealants.


G fi ld Si E i R S


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Power distribution in equipment room -(1)installing cabling rack

Note: 1.The indoor cabling rack is fixed on the wall with bolts. Before that, cables are drawn on the wall to facilitate the

straight installation of the cabling rack.

2.Because the cabling rack bears heavy cables, some places should be fixed with hangers, such as shelter frame,

ceiling suspension, bypass support and terminal and wall reinforcement.(In wiring, strong and weak current cables are placed

separately at a certain spacing.)

Support Complete

outside view of

cabling rack

Cabling

stairs

Shelter

frame


G fi ld Sit E i t R S t


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Note: 1. Grounding wires are connected between cabling racks

2. Another yellow green grounding wire is prepared to connect with grounding copper bar.

Between cabling racksthere are grounding wire

connections Yellow green

grounding wire


IncorrectG fi ld Sit E i t R S t


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Note: 1. The indoor cabling rack must be firmly fixed on the wall or rooftop.

2. The Cabling Rack must be parallel and even secured with bolts for stability.

The cabling rack

direction is wrong. The

diagram is upside down

and the plane should faceupward.

Incorrect

Method





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2. Equipment Room

Power Distribution

Feederwind

ow

Cablingrack

A

C

D

B

A

T

S

A

V

R

Layingofp

ower

cables

Switchoutletand

emergencylightsfor

indoorligh

ting

Outdoorlighting

Smokedetector,tem

perature

detector,doorcontr

ol,water

alarmandoutdooralarm


system

Airconditionin

gsystem

Groundingsystem

31 2

Firefigh

ting

system





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Equipment room power distribution -(2) - schematic diagram of power

supply (1)

Mains

Diesel engine

Electric

meter

lightning

proof boxATS ACDB

AC

Power cabinet

Outdoor

lighting

Aviationobstruction

lamps

Air conditioner

Indoor lightingTelecomequipment

Environment monitor Emergent ventilator Battery

Outdoor part Indoor part (power distribution) Indoor part (equipment)

AVR

DC




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supply (2)

ACvoltage

regulator

Standbyelectric

generator set

Moveablepowerstation

Monitoring

Grounding

AC

distributionpanel

Solar cellarray

Rectifier

Windgenerator

DC controlpanel

Battery

Other loads

(a) Uninterruptible(b) Interruptible for short time

Mains

AC220V/380V

(a)

DC-12V(DC-48V) (a)

AC220/380V (b)




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supply (3)

1. There are several Backup Power Supply modes available depending on areas and design requirement: Mains,

Diesel Engine, Battery and Solar Energy.

2. When there is a Power Failure from mains: -

a. the Diesel Engine in the site will automatically provide Power through the ATS.

b. If the Diesel Engine fails, the Battery can provide Power for Equipment for eight

hours as expected.

c. In some areas with good Mains Power Supply, there are no diesel engines during

the site construction.

d. However movable diesel engines are configured to prevent Mains Failure.

3. Some functions of the equipment can be integrated or optional:

1. Lightning proof box (optional): add when no lightning proof system is available in ACDB;2. AVR (AC voltage regulator) (optional): install when the mains changes unstably;

3. ATS (optional): use with diesel engine, not available in the base stations without diesel engine;

4. Other power distributions are provided and laid as per design requirements.


o

Greenf ield Site Equipment Room System


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Mains

Diesel engine

Electric meter,

lightning proof and

voltage regulator

ATS ACDB

Aviation

obstructionlamps

Equipment room power distribution -(2) -

working diagram of pipes and wires (1)

Indoorpower

distributionand

equipment

Inside

shelter

Outdoor

cabling

rack

Oil tank

For description of 1, 2, 3, 4 and 5 in the figure, see

point 4 on the next page.

Embedded

underground

1 2 3 4

5




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Equipment room power distribution -(2) - working diagram of pipes

and wires (2)

1. Cable: power cable and feeder;

2. Pipe: diesel oil pipes, power PVC cabling pipe;

3. Pipes and cables are routed in three ways: underground, ground surface inside shelter and on

the cabling rack;

4. In the figure above:

1 Connect power cables from mains to the shelter through PVC pipeembedded underground;

2 Connect power cables from diesel engine to the shelter through PVC pipe

embedded underground;

3 Connect the diesel engine to the diesel oil pipe of diesel oil tank (with ends

exposed and middle part embedded underground);

4 When the electric meter is far from shelter, connect the power cables from

electric meter to the shelter through underground; The electric meter ofsome base station is placed near the ATS, so it is no need to connect the

power cables through underground;

5 Connect the power cables of aviation obstruction lamps through the feeder

rack.




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Equipment room power distribution -(2) - 3-phase 5-line power supply

Power

distributionbox

lightning

proof box

Powercabinet

Other

distribution

equipment

L1L2L3N

PGND

L1-one of three phases power supply



N-zero line in the three phases power supply

PGND-protection grounding wire

Note: If the color of lines is inconsistent with the design, the design shall prevail.




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Equipment room power distribution -(2)general rules and requirements

for power distribution in equipment room

1. The indoor air switch capacity must be 1.5 or 2 times of the current capacity of

respective tributary;

2. The diameter, size and number of indoor power distribution cables should

match those for tributary cables, and comply with related standards;

3. The cables for indoor power distribution should not be randomly appended, andthere should be no joints in between and the cables should not be exposed;

4. Avoid crossover and intertwining among indoor distribution cables and signal

cables;

5. The indoor power distribution equipment should be installed in consideration of

heat shrinking and maintenance, and the space should be reserved for easy

opening of side doors;6. The indoor power distribution equipment should have grounding protection by

connecting the yellow green grounding wire to the grounding bar.




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Equipment room power distribution (2)installing AVR (AC voltage

regulator)

Note: 1. AVR should be installed as per actual drawing.

2. It should be configured in the areas where the mains voltage is unstable.

3. Do not use it in the areas with stable power supply.

4. The current new ACDB has integrated AVR.




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Equipment room power distribution (2)installing ACDB (AC distribution

box)

Note: 1. ACDB: AC distribution box.

2. First fix the distribution box according to the actual drawing, if there are no specific requirement in thedrawing, the bottom edge of distribution box should be 1200 mm above the ground.

3 The distribution box is mounted on the cabling trough at upper, middle and lower positions.

4. The distribution box must be grounded and the lead-out grounding wires are connected with the grounding bar.

5. All facilities/cables in the distribution box must be installed reliably and cables must be routed straightly

without intertwining each other.

6. The box is placed firmly against water and theft.


IncorrectGreenf ield Site Equipment Room System


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Note: 1. In Figure 1, the power cables are not connected by a copper lug and crimped with bolts.

2. This connection may lead to over current short circuits.

3. In Figure 2, cables should not pass from the rear side of the grounding bar.

4. The outdoor power distribution box is fixed and wired irregularly without safety measures against water and theft

5. This could result in short circuits and theft of components, in serious cases, fire may occur.

Figure 1 Figure 2

No copper lug is used

for connection. The

section is trimmed

manually.

Method

Equipment room power distribution (2)installing ACDB (AC

distribution box)

No measures

against rain

and theft

Cables are

intertwined

together.




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Equipment room power distribution -(2) - laying of power cables

Note:

1. The DC and AC power cables

should be placed separately fromsignal cables.

2. Avoid putting them in the same

bundle.

3. It is best to have the whole cable

with intact surface, without joints

or bend.

4. The cables are routed easily andneatly and bundled evenly.

5. The connection with related parts

are firm and welded smoothly, no

grounding, short circuit and

broken circuit.

Power cables and signal cables are

bundled together.

The standard laying of power andsignal cables




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Equipment room power distribution -(2)installing indoor lighting,

switches, outlets and emergency lights

Note: 1.The indoor lighting is installed in the middle of the ceiling;

2.The emergency light is generally installed in the middle of top door frame, with an outlet beside;

Convenience and safety should be considered when installing the switches and outlets for lighting equipment.

Emergency light

Indoor lighting




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Power distribution in equipment room -(2)installing

outdoor lighting

Notes: 1. The indoor lighting is installed in the middle of ceiling.

2. Over door lights are installed against rain and theft.

Over door lightsOver door lights




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Note: 1. The over door lights should be installed under eaves or awnings.

2. Improper installation will reduce the service life of lights, and even cause short circuits.

3. Emergency lights are generally installed on the top middle of door frame.

Wrong position ofinstallation

Method

Power distribution in equipment room -(2)outdoor lighting

Emergency lights are generally

installed on the top middle of

door frame.




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Power distribution in equipment room -(2)alarm system

Door control

Outdoor alarm

Note: 1. The door control is placed between the over door frame and door

2. Infrared sensor is placed in a big range of detection, over 1.5 m above ground

3. Water detector is put in the place which is prone to water or is lower in altitude

4. EAC is also placed 1.5 m above ground to facilitate the construction and near the terminal

monitoring unit (TMU), the remote monitoring module in the base station), and the EAC inside the shelter needs to

be connected with TMU in the base station for remote monitoring.

Smoke sensor

Infrared sensor Infrared

Temperature and humidity

Smoke detector

EAC

Water detector

Door control

Base station equipment




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Equipment room power distribution -(2)installing intelligent

ventilation system and firefighting equipment

Note: 1. The air vent is installed as per design, and blow air from lower part and take away heat from higher part.

2. The firefighting equipment is installed as per design requirement, generally on or near the ground and

apparent and accessible place.




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Note: 1. In Figure 1, the outdoor unit of air conditioner is installed stably and protected with an anti-theft net.

2. The antitheft for air conditioner is fixed with bolts.

3. In Figure 2, the indoor unit is hung at a height not less than 1.8 m.

4. Make sure the installing surface is firm and strong to hold adequately when installing it.

Outdoor

unit of air

conditioner

Indoor unit of

air conditioner

Figure 1 Figure 1

Power distribution in equipment room -(2)Installing air conditioning

system




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Note: 1. The indoor unit is too low.

2. Normally, the height should not be less than 1.8 m; otherwise the refrigeration is impossible (hot

air from low to high, cold air from high to low).

Air conditioners

are hung not high

enough.

Method

Power distribution in equipment room -(2)installing air conditioning

system




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Shelter installation and power distribution

2. Equipment room

power distribution

Feederwindow

Cablingrack

ACDB

ACdistribution

cabinet

AVR

Layingofpowercables

Switchoutletand

emergencylightsforindoor

lighting

Outdoorlighting

smokedetector,temperature

detector,doorcontrol,water

alarm

andoutdooralarm


system

Airconditioning

system

Firefightingsystem

Groundingsystem

1 32




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Lightning

proofbox

BTS

wirelessba

se

station

AC/DCrelat

ed

equipment

DDF

Monitoring

equipment

Racksystem

andother

distributionframes

ODF

Feeder window

Outdoor

grounding bar

Indoor grounding bar in equipment room

Antistatic floor

GPS lightning arrestor

Equipment room

Grounding grids

Equipment room power distribution -(3) grounding system

indoor grounding cabling diagram (1)

Insulators

Bolt with copper lug




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Equipment room power distribution -(3) grounding systemindoor

grounding cabling diagram (2)

Precautions for indoor and outdoor grounding:

1. The indoor and outdoor grounding wires are not connected in series;

2. In the grounding system, there should be two grounding bars for equipment: -

a. Working ground (lower)

b. Protection ground (higher)

3. The indoor and outdoor grounding bars are connected in parallel to the base station

grounding grids;

4. The general grounding bar (also called main grounding bar or grounding bus bar)

should be connected by leading out two copper wires from the two vertical grounding

object of the central area of grounding grids;

5. The down-lead of lightning arrestor to the grounding grids should be far from thegrounding grids of the equipment room, normally at least greater than 5 m;

6. Copper lugs are used between grounding wires and grounding bar for bolting.




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Equipment room power distribution - (3)-3 phase, 5 line power supply

grounding

Power

distributionbox

Lightning

proof box

Power

cabinet

Other

Distribution

equipment

L1L2L3N

PGND




N-zero line in the three phases power supply

PGND-protection grounding wire

Note: If the color of lines is inconsistent with the design, the design shall prevail.




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Outdoor lightning proof box

Note: 1. Install the box near the cable (cables must go through lightning proof box before connecting into the

equipment room)

2. Connection as per design requirements, and connect it with outdoor grounding bar.

Power distribution in equipment room -(3)installing lightning

proof box

G ee e d S e qu p e oo Sys e



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Indoor lightning proof box

Note: 1. Install the box near the cable connection as per design requirements (not too near, within the allowable

bend of cables because the cables are thick)

2. Connect with indoor grounding bar.

Power distribution in equipment room -(3)installing lightning proof box

q p y



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Power distribution in equipment room -(3)installing grounding bar

Note: 1. Depending on different design requirements, the installation of indoor and outdoor grounding bar may

be included.

2. The indoor grounding bar may have two grounding bars, one installed higher as the protection

grounding, and the other installed lower as the working grounding.

3. Installation specification requires that the grounding bar should be connected directly with the main

grounding grids

4. Copper lugs and bolts are used between grounding wires and grounding bar.

Come from

general

grounding grids

Come from

general grounding

grids

Indoor grounding copper bar connects withoutdoor grounding grids

q p y



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Note: 1. The grounding copper bar is fixed on the wall at a distance of 50 mm from the wall and cushioned

with insulators.

2. The height from the ground should comply with design requirements.

Power distribution in equipment room -(3)installing grounding bar

Insulators

Copper lugs

and bolts for

connection

q p y

Incorrect



57/57

Note: In figure 1, cables should not pass from the rear side of the grounding bar.

Figure 1

Cables should not pass from

the rear side of the grounding

bar

Method

Power distribution in equipment room -(3)- indoor grounding bar

q p y

Documents

Energy Shelters V2[1].1