Do buried storage tanks need lightning protection and static grounding?

It is necessary; according to the \"Comprehensive Book on Chemical Equipment Design – Spherical Vessels and Large Storage Tanks\", it is required to install one

Buried storage tanks that hold flammable and explosive liquids must be equipped with lightning and static discharge protection systems, including at least two grounding points. They must also be electrically connected to the process pipelines that are above ground level and grounded as well.

If storing flammable and explosive liquids, the storage tanks must be equipped with lightning and static protection measures as well as grounding.

Lightning and static protection measures as well as grounding should be required.

Buried storage tanks that hold flammable and explosive liquids must be equipped with lightning and static discharge protection systems, including at least two grounding points. They must also be electrically connected to the process pipelines that are above ground level and grounded as well.

Proper lightning and static protection grounding should be implemented.

It also depends on the medium inside the storage tank; what if it’s a buried tank for waste acid water?

It probably also depends on the depth of burial, right?

According to the provisions on lightning protection design for storage tanks in the \"Code for Design of Oil Depots GB50074—2002\", it is necessary! This post was last edited by xlm19589 on 2009-4-22 08:33.]

Static grounding is the same whether it is above or below ground; the key factor is the medium, which then determines the requirements for static grounding

It must be done, and done in accordance with the standards. Otherwise, something serious will happen. For specific details, refer to the \"Petroleum and Chemical Engineering Design Code\"

Lightning and static protection grounding is required, whether above ground or underground.

There are requirements regarding the grounding electrode in lightning protection; if your storage tank meets those requirements, then it’s not necessary

Lightning and static electricity protection grounding should be implemented.

Could someone tell me which standard and which specific provision it is? I’ve studied it.

Several points need to be clarified here: First, does the medium stored in the tank have the tendency to accumulate static electricity?； Second, if so, the main issue with buried storage tanks is static electricity prevention ； Third, can buried storage tanks serve as natural grounding electrodes to meet reliable anti-static requirements? ； Fourth, if this cannot be achieved, a separate grounding must be provided.

I think it depends on the specific circumstances: 1. Since they are underground, they are generally not struck by thunderstorms; if the substances stored in these tanks do not belong to the category of flammable or explosive materials, it may not be necessary to install lightning protection devices； 2. If they are flammable and explosive substances of categories A or B, lightning and static electricity protection grounding is still necessary. Static electricity is not related to the installation height, while lightning can take the form of induced lightning; therefore, such storage tanks should be grounded.

Grounding for lightning protection of buried storage tanks is not required, but the static grounding resistance must be measured! The original poster should take a look at the design specifications for oil storage facilities as well as the lightning and static electricity protection inspection reports!

According to GB 50074-2002 Code for Design of Oil Depots, 14.2.3 specifies that the lightning protection design for oil tanks storing flammable liquids shall comply with the following requirements: 3 The tank body of buried oil tanks, as well as the metal components of the tank structure, along with metal accessories such as vent valves and sampling ports, must be electrically connected and grounded; the grounding resistance should not exceed 10Ω. (Explanation of the provision: 14.2.3 The requirements for lightning protection of tanks storing flammable liquids are as follows: 3 For tanks covered with soil, many domestic and international sources state that \"for those with a soil cover thickness of 0.5 m or more, lightning protection measures need not be considered.\" In particular, German regulations, despite several revisions, still stipulate that covered oil tanks do not require any special lightning protection. This is because the oil tank is buried in the soil, shielded by it. When lightning strikes the soil layer on top of the oil tank, the soil layer \"dissipates and directs the lightning current, providing protection; therefore, there is no need to install lightning rods (nets).\" However, its breather valves, flame arresters, oil measurement ports, lighting ports, etc., generally do not have a soil cover, so good electrical connections and grounding must be ensured. It can be seen that anti-static grounding is necessary, while lightning protection may be required depending on the circumstances. For exposed ventilation openings, in addition to installing flame arresters, appropriate lightning protection measures are essential; lightning rods can also be installed (with their tips kept far away from areas prone to explosions). (For reference only)