Data Center

Data CenterElectrical Protection Solutions

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Data Center Electrical Protection Solutions

ERICO offers a full range of ERITECH® Facility Electrical Protection products to protect data centers and other facilities worldwide. ERICO’s product offerings include ERITECH grounding and bonding accessories, CADWELD® welded electrical connections, CRITEC® surge protection and ERITECH lightning protection.

ERICO® Facility Electrical Protection

ERITECH offers an extensive line of grounding and bonding products, which includes ground rods and accessories, signal reference grids, chemical ground rods, GEM® ground enhancement material, couplers, clamps, inspection wells, grounding and perimeter bus bars and ground test instruments.

ERITECH® Grounding and Bonding

CADWELD welded electrical connections are used to connect the grounding and bonding conductors to each other and to the ground electrode system, including ground rod electrodes, building steel and rebar. CADWELD connections provide a permanent, low-resistance connection needed to create a long-lasting, reliable bonding network. CADWELD connections will not deteriorate, cannot loosen and are made with inexpensive, lightweight and portable equipment. CADWELD® EXOLON is a fi ltered, smokeless connection system designed for making connections indoors.

CADWELD® Welded Electrical Connections

CRITEC surge protection products protect against damaging electrical surges on power and communications lines caused by lightning, building systems and other switching events.

Direct and indirect lightning strikes can pose many risks to businesses, including damaging buildings and critical equipment. ERITECH lightning protection products offer a variety of solutions to protect valuable equipment and personnel and to avoid against disruption and downtime.

ERITECH® Lighting Protection

CRITEC® Surge Protection

DCADWELD Through Connection to Pedestal (VG)

E CADWELD Connection to SRG (HA)

Ground Braids and Straps

Signal Reference Grid (SRG)

A

B

SRG to Pedestal Using EK16

SRG to Pedestal Using SRGC46

C CADWELD Connection to Pedestal (VS)

ERITECH®

Lightning Protection Cable

CADWELD®

Telecommunications Ground Bar (TGB) and CADWELD Lugs

Low Impedance Riser (LIR)

Lightning Air Terminals

ERITECH®

Lugs

ERITECH®

ERITECH®ERITECH®

Pedestal Bonding Options

EE

E

A

B

C

D

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Data Center Electrical Protection Solutions

The SRG, is an integrated high-frequency, low-impedance signal reference grid structure which consists of a network of fl at copper strips welded at the crossovers in accordance with recommendations found in IEEE® 1100 “IEEE Recommended Practice for Powering and Grounding Electronic Equipment.”

The SRG lies directly on the sub-fl oor under the raised-fl oor structure and is used to interconnect metal frames, racks, enclosures, signal level power common terminals and the electrical distribution grounding system. The SRG is used as a ground reference system for IT equipment by creating an equipotential ground reference plane over a large range of frequencies from DC through the Megahertz range. At high frequencies, fl at strip conductors have considerably lower inductive reactance than concentric stranded or solid conductors and the confi guration of the SRG results in a lower impedance system, which limits potential differences between data systems and other systems during voltage transients or other power system disturbances. The following graph from IEEE 1100 shows the impedance of an SRG system versus a wire-only grounding system.

SRG IMPEDANCE VS. FREQUENCY

0

20

40

60

80

100

120

140

160

180

200

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

Frequency in MHz

SRG Impedance

Wire Only Impedance

Imp

edan

ce in

Oh

ms

Economical and maintenance-free•

Recommended by the 2005 Edition of IEEE• ® 1100

Reduces common-mode noise•

Increases noise immunity to electric fi elds•

Reduces capacitive coupled interference•

Compliant with Information Technology Industry • Council Information Letter “Guidelines For Grounding Information Technology Equipment (ITE)” and the National Electrical Code.

SRG Features and Benefi ts

ERITECH® Signal Reference Grid (SRG)

IEEE is a registered trademark of The Institute of Electrical and Electronics Engineers, Incorporated.

1

2

3

4

5

1

4

25

3

Cable-to-Lug (GL)

Cable-to-Ground Rod (GT)

Cable-to-Rebar (RH)

Cable-to-Cable (PT)

Cable-to-Steel (VF)

Telecommunications Main Ground Bar (TMGB) and CADWELD Lugs

CRITEC®

Water Pipe Clamp

Rebar ClampsCAT 6 Network Surge Protector

ERITECH®

Power Surge Protection

ERITECH®

Ground Rods

ERITECH®

ERITECH®CRITEC®

CADWELD® CONNECTIONS

NOTE: CADWELD connections shown are typical. Connections for any confi guration and conductor are available to meet specifi c application requirements.

E774B-WWEN E1347LT07WWEN 00317M8

DATA CENTER ELECTRICAL PROTECTIONERITECH® Signal Reference Grid

SRGBD100 2” x 26 Gauge Copper Strip, 2’ x 2’ Grid Spacing, 10’ x 100’ Roll

SRGBE100 2” x 26 Gauge Copper Strip, 2’ x 2’ Grid Spacing, 12’ x 100’ Roll

SRGs can also be custom manufactured to suit your needs. SRG Part Numbering System:

ERITECH SRG Connector

SRGC46 Mechanical SRG Connector, #4 and #6 Solid and Stranded Conductor

SRGC46BR Pedestal Mounting Bracket for SRGC46

EK16 Ground Clamp, #10 - #2 conductor. Use on round and square pedestals up to 1”

ERITECH Direct-Burial Grounding Clamps

EK16 & EK17 Ground Clamps, #10 - #2 conductor. Use on pipe up to 1”, ground rods up to 1”, Rebar #4 to #8, Rated for Direct Burial.

RC70 Heavy-Duty Rebar Clamp, #8 - 2/0 AWG Conductor, #3 -#6 Rebar

RC100 Heavy-Duty Rebar Clamp, #8 - 4/0 AWG Conductor, #6 -#11 Rebar

ERITECH Water Pipe Clamps

CWP2JU Bronze Pipe Clamp 1-1/4” to 2” pipe, #10 - 2 AWG

CWP4JU Bronze Pipe Clamp 2-1/2” to 4” pipe, #10 - 2 AWG

ERITECHTelecom Main Grounding Bus Bars (TMGB) &

Telecom Grounding Bus Bars (TGB)

TGBA14L06PT, TGB, 2” x 1/4” x 12”, Tin-plated copper, EIA/TIA Standard



TMGBA14L15PT, TMGB, 4” x 1/4” x 12”, Tin-plated copper, EIA/TIA Standard



*Remove “T” suffi x for untinned (plain) copper. Contact ERICO® for other sizes and confi gurations.

ERITECH Copper-Bonded Ground Rods

615880, Copper-bonded Ground Rod, 5/8” x 8’




In addition to the above grounding, bonding and SRG products, ERICO can provide design assistance to protect your data center, including the proper selection of CRITEC power and data surge protection devices, CADWELD exothermic connections to suit individual grounding system requirements and the design of a lightning protection system to comply with any lightning protection standard worldwide. Please contact ERICO or an authorized factory representative for further information.

WARNINGERICO products shall be installed and used only as indicated in ERICO’s product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from your ERICO customer service representative. Improper installation, misuse, misapplication or other failure to completely follow ERICO’s instructions and warnings may cause product malfunction, property damage, serious bodily injury and death.

Copyright ©2008 ERICO International Corporation. All rights reserved.CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO International Corporation.

SRGGrid Spacing

B = 24”C = 48”F = 12”

Grid SpacingLength in Feet

(3 Digits)WidthA=4’ B=6’ C=8’

D=10’ E=12’ F=14’G=16’ H=2’ J=3’K=5’ L-7’ M=9’

Phone: 440-248-0100Fax: 440-248-0723www.erico.com

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