Stated design basis
3E lists lightning risk assessment and LPS design under IS/IEC 62305. The agreed edition and deliverables belong in the proposal.
Lightning engineering service
Lightning risk assessment and LPS design
Lightning risk assessment and LPS design in Jaipur using structure data, roof geometry, incoming services and an agreed IS/IEC 62305 scope.
Discuss the project inputsDirect answer
What does a lightning risk assessment decide?
Risk comes first. The assessment uses the structure, occupancy, incoming services, roof equipment and surrounding exposure to set a design basis before anyone chooses a terminal.
The roof still matters. Air termination, down paths, bonding, surge protection interfaces and earth termination then need a coordinated layout drawn around the building that actually exists.
Layout options
Rolling-sphere and mesh methods are listed in the company profile. Their use follows the structure-specific design.
Real geometry
Tanks, solar arrays and level changes alter the problem. A generic circle over an aerial image does not settle the route.
Technical view
Which inputs change the assessment?
Plans are useful. Add dimensions, height, occupancy, construction, incoming power and communication services, nearby exposure and the consequence of damage to the first review.
Photographs catch the awkward parts. Roof tanks, parapets, exhausts, arrays and access routes often explain why a clean desk sketch becomes brittle when it reaches site.
How does assessment differ from layout?
They answer different questions. The assessment establishes the risk basis and required protection decisions, while the layout turns those decisions into air termination, conductors, bonds and earth interfaces.
Keep both traceable. A marked drawing should show what was assumed, where the routes sit and which details still require coordination with structure, waterproofing or electrical teams.
When does the design need another look?
Roofs do not stay still. Added solar arrays, tanks, steelwork, telecom equipment or incoming services can change exposure and invalidate an old route without anyone noticing.
Damage matters too. A strike, building extension or repeated test defect is a sensible trigger for review rather than another coat of paint on the same joint.
Decision sheet
What should the agreed deliverable contain?
Name the output before the visit. A calculation and a marked roof plan solve different parts of the job.
- Input basis
- Structure dimensions, use, occupancy, roof equipment, incoming services and available drawings
- Assessment
- Agreed IS/IEC 62305 basis, stated assumptions and protection decisions
- Layout
- Air termination, conductor routes, bonds, test points and earth-termination interfaces
- Coordination
- Surge protection, waterproofing, structure, solar and electrical-service interfaces
- Commercial output
- Scope notes, exclusions and bill-of-quantity inputs where agreed
Working sequence
How does the study become a buildable layout?
Each stage narrows uncertainty. Product selection sits after the risk and geometry review, not before it.
- 01
Collect the structure data
Review drawings, use, incoming services and the consequence of interruption or damage.
- 02
Survey the roof
Record levels, equipment, edges, access and possible conductor routes on the real structure.
- 03
Set the design basis
Document the assessment assumptions and the selected air-termination method.
- 04
Issue coordinated outputs
Mark routes, interfaces and remaining decisions for approval before installation.
Questions that change the scope
What should the project team settle first?
Can the study be completed from a roof plan alone?
Sometimes the first review can. A site survey is still needed when the drawing misses equipment, levels, routes or incoming services.
Is risk assessment the same as selecting an LPS class?
No. Class selection is one outcome within a wider assessment and design process.
Does a solar array change the review?
Often, yes. It changes roof geometry, metalwork, cable routes and surge interfaces.
Does the study automatically include a bill of quantities?
Only when the proposal says so. Calculation, drawings, BOQ and site supervision should be named separately.
Send the real inputs
Need the roof reviewed before pricing hardware?
Send roof plans, elevations, site photographs, building use and incoming-service details. We will identify whether a desk review is enough or a survey is required.
Send the requirement on WhatsApp