Isolating Spark Gap
The isolating spark gap (ISG) is an essential electrical safety device widely used in industries like chemicals, petrochemicals, and natural gas. Its main function is to provide a controlled electrical discharge path while maintaining isolation between system parts. When the electrical potential within the system rises to a dangerous level, the ISG quickly directs excess charges to the ground, preventing electrical faults that could lead to fires or explosions.
Additional information
| Lightning Impulse Current (10/350 μs) | 50 kA |
|---|---|
| Nominal Discharge Current (8/20 μs) | 100 kA |
| Rated Discharge Current | ≥ 100 A (0.5 s) |
| AC Spark-over Voltage (50 Hz) | ≤ 1 kV |
| Rated Impulse Spark-over Voltage (1.2/50 μs) | ≤ 2.2 kV |
| Rated Power Frequency Withstand Voltage (50/60 Hz) | 250 V |
| Insulation Resistance | ≥ 50 MΩ |
| Response Time | ≤ 100 ns |
| Ingress Protection | IP68 |
| Explosion Protection | Ex II 3G |
| Working Temperature | -40 °C ~ 70 °C |
Description
Description
Standard ISGs are designed for typical applications, while special, hermetically sealed ISGs in the “Ex” version are specifically engineered for use in potentially explosive atmospheres. These specialized ISGs ensure electrical safety and reliability in harsh environments.
Application
Isolating spark gaps for aboveground and underground installation are used to indirectly earth and connect functionally isolated parts of installations under lightning conditions.
- For indirect connection of an overhead line roof pole to the external lightning protection system
- For indirect connection / earthing of functionally isolated parts of installations under lightning conditions
- For bridging insulating joints, insulating flanges, etc. in cathodically protected pipe sections
- For bridging buried insulating joints in cathodically protected pipe sections of pipelines
- For protecting insulating joints in potentially explosive atmospheres
- For safe installation in Ex zone 1 (gas) or 21 (dust)
- For use in either indoor or outdoor applications
Parameters
Testing
Packaging Information
Remarks: Custom packing is available upon request.
We have strict packing protocols to guarantee safe delivery of our products. Clear shipping marks and documentation make delivery acceptance straightforward and simple.
Shipping Documents:
- Proforma invoice
- Packing list
- Testing reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
- Certificate of origin (upon request)
