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Grounding clamp and green coiled bonding cable attached to a stainless steel process tank

Static Grounding Requirements for Flammable Liquids: What NFPA 77, OSHA, and NFPA 30 Require

Grounding and bonding are required whenever flammable liquids are transferred. The flow of liquid generates...
Two steel drums bonded with green coiled cables and grounding clamps during a transfer, with a cable running to a copper grounding busbar

Static Grounding and Bonding Standards: NFPA 77, NFPA 407 and API RP 2003

Static discharge is one of the leading ignition sources in flammable and combustible material transfer...
Fuel truck at a fueling station with hoses connected to a trailer tank, ready for pumping.

Static Ground Monitoring Systems for Flammable and Combustible Materials: How to Choose One That Won’t Fail Mid-Transfer

Static ground monitoring systems are the equipment that keeps a static spark from igniting flammable...
Illustration of a vacuum truck grounded through an STS 300 unit during liquid recovery

Static Electricity in Vacuum Truck Operations: Hazards, Regulations, and How to Protect Material Transfer Sites

Vacuum trucks collect flammable liquids, sludges, and chemical residues through high-velocity suction. This process generates...
Rail car wheel-to-rail contact rejected as a ground path, beside a clamp and ground rod

Static Electricity in Rail Car Loading: Hazards, Regulations, and How to Protect Fill Stations

Rail car loading operations move large volumes of flammable liquids every day. Crude oil, gasoline...
Four chemical drums individually clamped to a monitored STS 300 grounding unit

Static Electricity in Chemical Processing: Hazards, Regulations, and How to Control Them

Static electricity builds up during every liquid transfer, powder movement, and filling operation in a...
Aircraft refueling compared with and without a bonding cable, showing a spark when unbonded

Static Electricity in Aviation Fueling: Hazards, Regulations, and How to Protect Fuel Fill Stations

NFPA 407 does not require earth grounding during aircraft refueling. It prohibits it. Section 5.4...
Barge connected to a shore terminal with an STS ground monitoring unit and ground rod

Static Electricity Hazards at Marine Terminals: What Every Terminal Operator Should Know

Most terminal operators reach for a bonding cable before cargo transfer begins. It seems like...
Tank truck bonded to a loading rack with a grounding cable before product transfer

How to Ground a Tanker Truck for Loading and Unloading

To ground a tanker truck safely, connect a grounding clamp to clean bare metal on...