Posts Tagged ‘lightning’

Surge protector in switchboards > 50kA ?

June 14th, 2010 | 22 Comments | Posted in Electrical distribution
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electrical_risk

I would like to share a problem I face when I have to install a surge protection device type 1 in high power electrical switchboard. I already asked this question on another blog, and I’m trying to get more feedbacks from electrical engineers.

The situation is very “unconfortable” for me as a quality provider, because if a short-circuit of high value happens, though luckily probability is low, it would mean very serious safety risks …

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Surge protector in switchboards > 50kA ?

February 21st, 2010 | 14 Comments | Posted in Panel Building
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Lightning striking the Eiffel Tower (1902)

Lightning striking the Eiffel Tower (1902)

I would like to share a problem I face when I have to install a surge protection device type 1 in high power electrical switchboard.

The situation is very “unconfortable” for me as a quality provider, because if a short-circuit of high value happens, though luckily probability is low, it would mean very serious safety risks …

electrical_risk

(more…)

Surge protection devices: how to choose them?

October 20th, 2009 | 7 Comments | Posted in Electrical distribution
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As everyone knows, surge protection devices or surge protective devices (SPD) protect electrical equipment against overvoltages caused by lightning. That said, it is not always easy to distinguish between the various technologies or know which to choose.

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Lightning risk management

July 27th, 2009 | 6 Comments | Posted in Electrical distribution
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Lightning protection is nowadays clearly moving from Benjamin Franklin age to a more scientific approach. This is in particular the case for the lightning risk management
lightning risks

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LV surge protection installation

July 20th, 2009 | 15 Comments | Posted in Electrical distribution
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It’s Good to have in mind practical aspects: case of a low voltage  switchboard To achieve the effective installation of the , the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a impulse current has a significant voltage to be added to the Device (SPD) residual voltage.

nice picture from http://www.lafoudre.com/

nice picture from http://www.lafoudre.com/

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