Spark Gaps for Lighting Protection and Cathodic Protection
| Technical Data: |
| Type |
Explosion Proof Copper Tungsten |
| Discharge current (8/20) |
 100kA |
| Lightning impulse current |
120kA |
| AC spark over voltage (50Hz) |
750V |
| Standard lightning impulse spark over voltage (1.2/50) |
2.2kV |
| Protection class/application |
- Lightning protection
- Equipotentialization
- Installation at insulating flange sets
- Couplings of cathodic protected pipe sections
|
| Housing |
Die-pressed, mild steel, zinc plated, epoxy coated moisture proof housing |
| Connections |
25mm² PVC/PVC double insulated cabling and M8 brass screw/nut |
| Mounting |
Hot-dip galvanised mild steel brackets to suit flange |
| Dimensions |
65mm dia
55mm long |
Product Specification
Chemical Composition
| Element |
Units |
Limits |
Test Method |
Comments |
| Sasol |
Other |
| Fixed Carbon |
Mass % |
99.50 Min |
- |
By Calculation |
100 - (ASH + VCM) |
| Sulphur |
Mass % |
0.25 Max |
A.221 |
ASTM D 4239-94 |
|
| Ash |
Mass % |
0.50 Max |
C.145 |
ASTM D 4422-89 |
|
| Volatiles |
C.147 |
BS 1016 Pt4 |
|
| Moisture |
Mass % |
0.15 Max |
C.146 |
ASTM D 3173-78 |
|
| Bulk Density |
Kg / m3 |
1200 Max |
|
ASTM D527 |
|
| Density |
Kg / m3 |
2020 |
Typical |
|
|
| Resistivity |
µOhm/m |
520 Max |
|
ALUSUISSE C-109 |
|
Particle Size Distribution
| Element |
Units |
Limits |
Test Method |
Comments |
| Sasol |
Other |
| |
|
|
|
|
|
| Any Particle Size Combination or Configuration below 12mm is Available |
Product Specification
Chemical Composition
| Element |
Units |
Limits |
Test Method |
Comments |
| Fixed Carbon |
Mass % |
98.00 Min |
By Calculation |
100 - (ASH + VCM) |
| Sulphur |
Mass % |
1.00 Max |
ASTM D 4239-94 |
|
| Ash |
Mass % |
2.00 Max |
ASTM D 4422-89 |
|
| Volatiles |
BS 1016 Pt4 |
|
| Moisture |
Mass % |
0.30 Max |
ASTM D 3173-78 |
|
| Bulk Density |
Kg / m3 |
1250 Max |
ASTM D527 |
|
| Resistivity |
µOhm/m |
550 Max |
ALUSUISSE C-109 |
|
Particle Size Distribution
| Element |
Units |
Limits |
Test Method |
Comments |
| |
|
|
|
|
| Any Particle Size Combination or Configuration below 12mm is Available |
Comprises two part pourable Epoxy or Polyurethane Resin, clear plastic mould and sealing tape.
Two types are available.
Type Disa TRU for a through connection and Type TEE for a three way connection.
All connections are universal for cable sizes from 6 mm² to 95 mm².
The mould of the splicing kits are designed to accept split bolts or crimpits for up to 95 mm² cable.
|
