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Flat Strip Supplementary Bonding Grids (SRG) - Standard Sizes
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Flat Strip  Supplementary Bonding Grids (SRG) - Standard Sizes

Part No.
Description
Approx. Wt. (lbs.)
Add to BOM ◆
SRG105024
10’ x 50’, 24" O.C. Spacing
90
Add to BOM ◆
SRG125024
12’ x 50’, 24" O.C. Spacing
98
◆ BOM = Bill of Materials
• Commonly stocked.

Harger's Flat Strip Supplementary Bonding Grids are manufactured
from 2" wide x 26 gauge soft copper strip. They are welded together
forming a 2' x 2' pattern. Rolls of SRG range from 2' to 18' wide
and the weight per roll is usually limited to a maximum of 250 pounds.
The following page offers a design guide to help determine what part
numbers are required for the fl at strip system.
Signal Reference Grids (SRG) are also known as Mesh-BN’s,
System Reference Potential Planes (SRPP) and Supplementary Bonding Grids.
Note: The SRG acronym will not change.



The grid lies directly on the subfloor that supports the raised
floor. It may or may not be glued or fastened down. "Power and
data cables lay on the grid. The advantage of this geometry is that,
due to decreased open loop area, the coupling of radiated energy
from far-field phenomena into the cables is minimized when they
are very close to the copper strips that form the signal reference
grid. The higher capacitance between the cables and the signal
reference grid also increases the protected circuit's noise immunity
to electric fields. Minimum spacing between the cables and the
signal reference grid also reduces susceptibility to magnetic fields.
Both of these are near-field effects. A possible disadvantage of this
form of signal reference grid is the requirement for longer bonding
straps as compared to the raised-floor-based signal reference.
Two bonding straps (of different lengths) to each piece of equipment
substantially reduces the impedance of the strap."*

*2005 IEEE Std. 1100




CERTIFICATE OF RoHS COMPLIANCE
According to Directive: 2002/95/EC, 2011/65/EU (RoHS 2)
Flat Strip Supplementary Bonding Grids (SRG) - Standard Sizes
To whom it may concern,

The above part is hereby certified to be in compliance of the European directive 2002/95/EC, 2011/65EU or its exemption(s) for restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS 2).

Harger
301 Ziegler Dr
Grayslake, IL 60030
847.548.8700