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Sparkplug HV standards

Udtwmc
Hello,


Anyone know which standard covers sparkplugs, specifically protection against direct contact of the high voltage electrodes? 40,000V


I have an exposed sparkplug designed to ignite a flammable atmosphere such that the electrodes protrude outside its enclosure. This is in a restricted access area but i would still like to include a grill around the electrodes to prevent direct contact, but not sure what IP rating i need to comply.


BS EN 60204-11 states Ip4x, but again i'm not sure a sparkplug falls under HV power standards?? I'd hope to go with IP2x if i can to allow as much gas to engulf the spark plug.


Thanks
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    On a cooker or similar it can be exposed to touch, so  long as the exposed shock energy is limited - off the top of my head I can't recall the energy and pulse rate allowed but it is more than enough to light a typical gas flame.

    This is normally done by a capacitor of known charge, being dropped into coil of limited core cross section.. The other concerns are emc and if it the same electrode is dc biassed if it is also  used for flame detection.

    Mike
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  • 0
    On a cooker or similar it can be exposed to touch, so  long as the exposed shock energy is limited - off the top of my head I can't recall the energy and pulse rate allowed but it is more than enough to light a typical gas flame.

    This is normally done by a capacitor of known charge, being dropped into coil of limited core cross section.. The other concerns are emc and if it the same electrode is dc biassed if it is also  used for flame detection.

    Mike
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