Testing Products

Acceptance Testing of Lightning Protection Systems for (New, Altered, or Extended) Buildings

Periodic Testing of Lightning Protection Systems for Existing Buildings

Testing Items

Air-Termination System:

Type and method; Installation and position; Material and specifications; Installation quality and current condition; Corrosion; Vertical pull force of fixing brackets; Spacing and height of fixing brackets; Grid dimensions; Bridging at expansion joints; Equipotential bonding performance; Closely mounted conductive parts; Separation distance; Measures against side flashover; Protection zone (Rolling sphere method).

Down-Conductor System:

Type; Installation; Material and specifications; Installation quality and current condition; Corrosion; Vertical pull force of fixing brackets; Spacing of fixing brackets; Provision of test joints and protective measures; Measures against contact voltage and lateral flashover voltage; Closely mounted conductive parts; Separation distance; Electrical continuity performance; Number and spacing.

Earth-Termination System:

Type; Arrangement; Material and specifications; Welding and corrosion protection; Measures against step voltage; Backfill material; Separation distance; Common earthing; Electrical continuity performance; Earth resistance.

Lightning Equipotential Bonding (LEB) System:

Location; Structure; Material and specifications; Connection quality; Bridging performance; Equipotential bonding performance; Earthing performance of the Earth Reference Point (ERP).

Surge Protective Devices (SPDs):

Arrangement; Key performance parameters; Material and specifications of connecting conductors; Connection quality; Appearance; Number of protection stages and coordination between stages; External disconnector (overcurrent protection); Electrical continuity performance; Varistor voltage; Leakage current; Insulation resistance.

Testing Standards

Lightning Protection Systems for Buildings：

Applicable Components: Air-termination system, down-conductor system, earth-termination system, lightning equipotential bonding, surge protective devices

Standards: GB/T 21431-2023, GB 50057-2010, GB 50343-2012, GB 50601-2010, GB/T 32938-2016

Service Advantages

Over 9 years of experience in building lightning protection system testing, having completed numerous large-scale and key projects. Extensive field testing experience, providing professional technical support and consultation to clients.

Possesses a professional technical team and advanced testing equipment.

Standardized and transparent service processes, ensuring smooth acceptance at various stages of a project.