AEMC instruments 3640 Quick Start Manual

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Hazmat Grounding & Bonding

Site Considerations

• Locate grounding points on the tankers and transfer pump.

• Make connections to damaged tanker first to avoid a potential spark.

• When possible, grounding systems should be established up hill and outside of the

Hot Zone.

• Resistance measurement should be compliant with your local jurisdiction which

usually follows NFPA 472 @1000or lessor NEC @ 25or less, lower is always

better. Higher resistance means longer static discharge time.

Installing the Grounding System

STEP 1:

WARNING

: Make sure the ground rod is fully screwed tight into the Driver/

Extractor tool before driving it into the ground to avoid thread damage.

• Install/establish three separate static grounding systems, one for the distressed

tanker (X1), one for the recovery tanker (X2) and one for the pump (X3). When the

pump is not mounted to the fire truck, they should be at least 10 feet apart.

• The grounding sites should be up hill and up wind as well as outside of the

distressed tanker's hot zone.

NOTE: One or more rods may be needed for each grounding system to obtain an

acceptable grounding resistance. Multiple rods should be 3 to 6 feet apart and

connected to each other via jumper cable.

AEMC

Instruments • (800) 945-2362 •

www aemc.com

99-MAN 100438v3