S-BT Threaded Fastener Specification

page86 Specifications
5.8.3 Lightning current
For high temporary current due to lightning.
Test
standard
EN 50164-1:1999 “Lightning protection components Part 1: Requirements for connection components” and
EN 50164-1 / prA1:2005
Test criteria
Electrical test with stress of 3 times 50 or 100 kA (signal form 10/350 μs)
lightning current as follows:
• class H Imax = 100 kA ± 10 % W/R = 2,5 MJ/Ω ± 20 % td ≤ 2 ms.
• class N Imax = 50 kA ± 10 % W/R = 0,63 MJ/Ω ± 20 % td ≤ 2 ms.
Tested Configuration Tested Fasteners Test Results
Single point connection
X-BT-ER M10/3 SN 4
X-BT-ER W10/3 SN 4
X-BT-ER M8/7 SN 4
X-BT-ER M6/7 SN 4
X-BT-ER W6/7 SN 4
Current Exposure time
Contact
resistance
Result
50 kA 2 ms < 2,5 mΩ PASS
Note: Higher currents for an exposure time of 2 ms will result in failed
lightning connection.
In this connection configuration, the X-BT-ER is used as a fastener and not as an electrical conductor. The cable lug must be in direct
contact with non-coated base material. Please refer to requirements in 2.6.3.
Single point connection
X-BT-ER M10/3 SN 4
X-BT-ER W10/3 SN 4
X-BT-ER M8/7 SN 4
100 kA 2 ms < 2,5 mΩ PASS
Note: Higher currents for an exposure time of 2 ms will result in failed
lightning connection
Based on EN 50164-1:1999 and EN 50164-1 / prA1:2005
Current
(Max.)
Exposure time Fastener Connection configuration
50 kA 2 ms
X-BT-ER M10/3 SN 4
X-BT-ER W10/3 SN 4
X-BT-ER M8/7 SN 4
X-BT-ER M6/7 SN 4
X-BT-ER W6/7 SN 4
Single point connection
In this connection configuration, the X-BT-ER is used as a fastener and not as an electrical conductor. The cable lug must
be in direct contact with non-coated base material. Please refer to requirements in 2.6.3.
100 kA 2 ms
X-BT-ER M10/3 SN 4
X-BT-ER W10/3 SN 4
X-BT-ER M8/7 SN 4
Single point connection
Conclusion
5ms
5.9.4 Lightning current
Forhightemporarycurrentduetolightning.
Test Standard Requirements or Test criteria
IEC62561-1
Electricaltestwithstressof3times50kAor100kA
(signalform10/350μs)lightningcurrentasfollows:
• Classification N
I
imp
=50kA±10 %,W/ R=0.625MJ/Ω±35 %,t
d
≤5ms
• Classification H
I
imp
=100kA±10 %,W/R=2.5MJ/Ω±35 %,t
d
≤5ms
•Conditioning / ageingofthetestsamples
•Testwiththreelightningimpulsecurrents
•Evaluationofmechanicalstrengthsoftestsamples
•Measurementofthecontactresistance
•Measurementofthelooseningtorque
Fasteners
Single point
connection,
Type A
S-BT-ERM10/15SN6
S-BT-ERW10/15SN6
S-BT-EFM10/15AN6
S-BT-EFW10/15AN6
S-BT-ERM8/15SN6
S-BT-EFM8/15AN6
Single point
connection,
Type B
S-BT-ERM10HC120
S-BT-ERW10HCAWG4/0
S-BT-EFM10HC120
S-BT-EFW10HCAWG4/0
Tested configuration Test results
Classification N
Single point connection
Type A Type B
Current
I
imp
Specific
energy
W/R
Exposure
time
t
d
Contact
resistance
R
c
Result
50kA
<0.844MJ/Ω
>0.406MJ/Ω
1 ms <1mΩ pass
Classification H
Single point connection
Type B
Current
I
imp
Specific
energy
W/R
Exposure
time
t
d
Contact
resistance
R
c
Result
100
kA
<3.38MJ/Ω
>1.63MJ/Ω
1 ms <1mΩ pass