Sl. No.

Comments

Name of structure / building /block

To-scale plan and elevation drawing of the block / structure / building

(for a complex structure, make a small sketch & mark the dimensions)

Type of construction (Roof, walls, metal chimney- continuity issues)

Names of chemicals stored / Processed (flammability, corrosion aspects)

Material of air terminal

Material of down conductor

Physical condition of air terminal

Physical condition of down conductor

Condition and Number of earth connections

Diameter & storage capacity of tanks (if applicable)

Type of storage tank (fixed roof / fixed-cum floating, floating)

Routing of down conductor (side flash issues)

Presence of test link

One test link for each down conductor?

Equipment / vessel/ structure earthing details

Height of the air terminal from the ground

Surge protection (field instrumentation, DCS I/O racks, IT room, tele-communication equipment, etc.)

Location of air terminal (mark on the plan / elevation drawing)

Open areas -details

Present lightning protection maintenance details

Details of lightning / surge accidents

Use of structure

Type of construction

Contents or consequential effects

Degree of Isolation

Type of country

Number of thunderstorm days

Dimensions of the structure (LxWxH)

Type of roof (flat, ridge, etc.)

Overall multiplying factor

Overall risk factor

Lightning Protection requirement