AEMC instruments HAZMAT 2155.01 Instruction Manual

Hazmat Grounding & Bonding
Site Considerations
• Locate grounding points on the tankers and transfer pump.
Make connections
•
• When possible,
Hot Zone.
• Resistance measurement should be
usually follows NFPA 472
always better. Higher resistance means longer static discharge time.
Installing the Grounding System
STEP 1:
WARNING:
Make sure the ground
Extractor tool before driving it into the ground to avoid thread damage.
Install/establish three
•
tanker (X1), one
pump is not mounted to the fire truck. They should
• The grounding sites should be uphill and upwind, as well as
distressed tanker's Hot Zone.
NOTE: One or more rods may be needed for each grounding system to obtain an
acceptable grounding
connected to each
Distressed Tanker
grounding (to be
connected to the tanker)
X1
to damaged tanker first to avoid a potential
grounding systems should be established uphill and outside of the
@ 1000Ω
separate static grounding
for the recovery tanker
resistance. Multiple rods should be
other via jumper
Pump grounding (to
be connected to the
pump apparatus)
X3
Minimum 10' Spacing
compliant with your
or less, or NEC @
rod is fully screwed tight into the Driver/
systems,
(X2), and a third
be at least
cables.
Minimum 10' Spacing
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spark.
local jurisdiction which
25Ω or less; lower is
one for the distressed
for the pump (X3) when
10 feet apart.
outside of the
3 6
to feet apart and
Take Off Tanker grounding (to be
connected to the tanker)
X2
99-MAN
the
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