Appendix - Response to ASD Comment2

7/30/2019 Appendix - Response to ASD Comment2

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Response to ASD Comments

ASD Comments (LetterRef: ASD63/6104/SSP318/C50/500(104) )

Submission 1st AIP 3rd Submission Central Plants and Rooms and Undergroundand External Works (Part B Open Space)

Sub. Date: 12-Jan-2009

Doc. Ref.: DSF/BS/143

ASD Comment JRP Response Appendix

1 Major comments on design brief and reports:-

a Clause 1.0 - Introduction

i) The scope of this submission package and the space/areas, which are

classified as Open Space presumably to be managed by LCSD, to be

covered under the submission are still missing from the report (3rd

reminder)

Have been revised in this report.

The details demarcation of the Open Space areas can refer to

Appendix - D for details.

-

ii) The facilities shared use amongst the different user groups of

CGC/LegCo, CGC/Open Space, CGC/LegCo/Open Space and

LegCo/Open Space should be under separate package of communalfacilities. This submission shall only be focused on Open Space and

shared facilities in relation to Open Space

Have been revised in this report. -

b Clause 2.1.2 Design Criteria for MV space

Only those rooms/areas solely designed for Open Space should be

mentioned in the design criteria table. Design criteria for irrigation

water pump room, water pump room, filtration plant room, etc., which

are served use should be submitted under Common Facilities

package

Have beed revised in this report. -

c Clauses 2.2.3 & 2.2.4 - Plumbing and drainage installations

Plumbing and drainage installations shall be submitted under separate

packages

Noted. -

Clause 2.2 Air and water distribution velocity

d The proposed design criteria for air distribution velocity shall be

subject to the recommendation of acoustic report.

Noted. -

e Clause 3.1.1 AC system

Tee off reserve from the central chiller plant should be allowed for

Open Space.

Chilled water and hot water tee-off will be provided inside

Central chiller plant room.

-

Ref


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ASD Comment JRP Response AppendixRef

f Clause 3.1.2.4 Park toilet

CCMS with time scheduling supplemented with local control for

circulating fans installed in toilets shall be provided.

Confirmed to provide. -

g Clause 3.1.3 - CCMS

Description of CCMS proposed shall be specific for Open Space.

Irrelevant information shall be removed from the report

Have been revised in this report. -

h Clause 3.2 FS installation

Areas/rooms of Open Space proposed with shared use of fire hydrant/hose reel system, sprinkler, street hydrant, manual fire alarm, AFA,

shall be summarized in the report for ease of reference

i Clause 3.2.5 AFA

i) The fire alarm and evacuation matrix table has not included Open

Space

ii) Please note the comment made on the same table under CGCO,

CGCL and LegCo submissions

iii) Fire alarm signal to be repeated to fire repeater station in Park

Management office shall be stated in the report

iv) Please indicate whether the actuation of building alarm will trigger the

alarming in facilities of Open Space or vice versa

j Clause 3.5 Electrical installation

i) In view of optimization of transformer loading capacity, please review

if the electric loading of common facilities/ open space can be

combined into one single transformer and paired up with the

transformer group of central chiller plant for resilience design

It will be revised in schematic drawing and loading estimation

in report


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p Clause 3.5.13 Active harmonic filtering equipment

Harmonic filter shall be sized according to the harmonic

characteristics of the associated non-linear equipment load so as to

meet the requirement as laid down in the Electrical Energy Code

instead of 15% of the rating of the connected load as stated in the

report. Design calculation shall be submitted

It will be provided in DDA.

q Clause 3.5.15 Lightning protection system

Lightning protection system proposed shall be subject to your

submission of risk assessment as per the BS EN 62305 which has

superseded BS6651 as effective on 31 Aug 2008

It will be incorporated in report.

r Clause 3.5.16 Public address system

Design criteria of sound level shall be given in the report.


s Clause 3.5.17 - Induction loop system.

Please state the area of Open Space is to be provided with induction

loop system. (2nd reminder)


t Clause 3.5.18 Water leakage detection system

Please explicitly state where the leakage detection system is to beprovided for Open Space. The proposed areas fall outside the scope of

Open Space. Please review

u Clause 3.5.19 Intercommunication system

Please confirm whether intercom has been allowed for plant rooms of

Open Space and EMSD office which is located under the Green

Carpet


v Appendix D Demarcation plan

Please update the demarcation plan based on the latest agreement with

the users. Also, please check and confirm if the B/F drivers room isunder management of Open Space

The demarcation plan has been updated. The B/F driver's

room is under the management of CGCO.

Appendix-D


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w Appendix E Load estimate

i) Please elaborate the breakdown of load estimate of (150kVA normal

+ 37kVA essential) allowed for building landscape lighting

Noted and It will be subject to LDP design.

ii) Please elaborate the breakdown of load estimate of 60kVA allowed

for ACMV installation

It will be shown in load estimation.

iii) Please elaborate the breakdown of load estimate of 132kVA allowed

for irrigation water pump (2nd

reminder)


iv) Please elaborate the breakdown of load estimate of 158kVA allowed

for water feature (2nd

reminder)


v) Firemans lift has been included into the load schedule of FSI

generator. Please clarify if such is allowed for Open Space. If not,

please delete it from the schedule

It will be incorporated in common area report.

x Appendix F Schedule of Maintenance Work

The maintenance schedule is incomplete. FS, CCMS, generator, etc.,

have been missing from the schedule

Have been included in this report.

y Appendix I Major Equipment Maintenance Route

The proposed access route for major equipment maintenance in

basement has not been shown on the submitted drawings. Also, the

minimum clearance of access dimension required to be maintained all

along the route is to be given.

Will be provided in DDA submission for the details of

maintenance route.

z Please elaborate the design provision to cater for seismic situation and

natural disasters as per the requirement stated in the ER.

Have been included in this report. Section 1.0 in design report.


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aa Maintenance requirements and strategy shall be proposed to address

the shared use of installations amongst different groups of users, such

as CGC/LegCo, CGC/LCSD, CGC/LegCo/LCSD or LegCo/LCSD.

(2nd

reminder)

It will be provided in report.

ab Please also refer to comments given on the same submission on

Common Facilities for those areas relevant to the Open Space

Have been included in this report. -

ac Some of the replies to previous ArchSDs comments on 1st

AIP 2nd

submission is unsatisfactory. Please note the markup comment on the

returned report and amend accordingly.

Noted

ad Please refer to other comments marked up on the returned design

report

Noted

2 Major comments on drawings:-

a Power distribution shall be divided into Open Space; Shared facilities

of Open Space; and Shared facilities of non-open space

There are two kind of power distribution. One is Open Space,

another is Common area.

b Power distribution feeders from the main cubicle switchboard and

emergency generator cubicle designed for Open Space and Shared

facilities of Open Space shall be dedicated in order to demarcate

maintenance responsibility

It will be shown in DDA drawings.

c Local maintenance bypass switch shall be provided for those ATS of

non-ACB or non-MCCB types.

There is no ATS in kind of non ACB or non MCCB.


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d Main switch shall be allowed for the respective main supplies of

essential and normal power circuits of Open Space and Common

Facilities in order to differentiate the ownership of the power supply

system.

It will be revised in schematic drawings.

e Separate switchroom should be allowed for open space and common

facilities for ease of future maintenance work under different

ownership

It will be revised in drawing layout.

f PA Schematic The headend equipment of PA system should installed

in Park Management office instead of G/F security control room

Noted and will be incorporated in drawing layout.

g Cubicle switchboard layout plan shall be submitted It will be incorporated in drawings.

h IT infrastructure schematic diagram. Please indicate the provision for

Open Space

It will be incorporated in drawings.

i The following areas/rooms which have been shown on Airside

Schematic diagram should not be classified as open space:-

HV generator room

Fuel tank room for HV generator room

It shall be SWHP plant room.

Appendix - Response to ASD Comment2

Documents

Transcript of Appendix - Response to ASD Comment2