Post on 12-Feb-2017
transcript
KEEPING TO CODEcomparison between
US & China standards
Jeffrey Lam RCDD
Data Center StandardsComparison between
EIA/TIA 942 & GB 50174 -2008
ANSI / TIA 942 Telecommunications Infrastructure Standard for Data Centers
Published by Telecommunications Industry Association
Recognised by American National Standards Institue
Published in 2005
GB 50174 (2008)Code for Design of Electronic Information System Room
Published by China Electronics Engineering Design Institute
Designated as Guo Biao ( 国标) or National Standards
Published in 2008
US vs China “National” standards
ANSI / TIA 942A Tiering system
• Tier 1 Basic Data Center• Tier 2 Redundant Components• Tier 3 Concurrently maintainable• Tier 4 Fault tolerant
GB 50174 (2008)Class system
• C Basic model • B Redundant • A Fault-tolerant-type
Classification of DC for comparison
Where items are not explicably allowed / restricted, the following terms are used in the standards
ANSI / TIA 942A Not recommendedNo requirementNo restrictionNot applicableMinimum code requirements
Classification of DC for comparison
GB 50174 (2008) 可 - permissable/ optional 应 - should be used 宜 - advisable
Comparison - LocationsTIATIER Proximity to airports GB
CLASSTIER 1
not applicable GB Class CTIER 2TIER 3 Not less than 1.6 km. GB Class BTIER 4 Not less than 8 km GB Class A
TIATIER Proximity to major traffic arteries GB
CLASSTIER 1
not applicable GB Class CTIER 2
TIER 3 Not less than 91 m Not less than 100 m GB Class B
TIER 4 Not less than 800 m GB Class A
Comparison - Locations
TIATIER
Proximity to flood hazard area as mapped on afederal Flood Hazard Boundary or Flood
Insurance Rate Map
GBCLASS
TIER 1 No requirement Not advisable to located Class C
TIER 2 not within flood hazard area
Should not be located
Class B
TIER 3Not within 100-year flood hazard area or less than 91 m / 100 yards
from 50-year flood hazard area Class A
TIER 4 Not less the 91 m from 100-year flood hazard area
Comparison - Power
ANSI/TIA TIERS Utility Entrance GB
CLASSESTIER 1
Single Feed Class CTIER 2TIER 3 Dual feeds Dual feeds from
different sources.
Class B
TIER 4 Dual feeds from diff. substations Class A
Comparison - Genset
TIA TIERS Back-up diesel generator system GB
CLASSES not mentioned Class C
TIER 1 8 hrs TIER 2 24 hrs Class BTIER 3 72 hrs Class ATIER 4 96 hrs
Comparison – UPS
ANSI/TIA
TIERSUPS Redundancy
GB CLASSE
STIER 1
N Class CTIER 2TIER 3 N+1
N+X Class B
TIER 4 2N
2N or M(N+1) Class A
Comparison – CRAC/CRAH
ANSI/TIA TIERS CRAC / CRAH GB
CLASSESTIER 1 No redundant Unit N Class C
TIER 2 1 redundant Unit per critical area N+1 Class B
TIER 3 Redundancy to maintain continunity during loss of
one source of power
TIER 4 N+X Class A