Owner's manual

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29!
Appendix"
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This!product!adopts!TVS!plate!lightning!prote ctio n !te c h n o log y !to !a vo id !d a mage!cause d !b y!p u ls e!s ign a l!th a t!is !b elo w !
3000W,!like!instantaneous!lighting!stroke,!surging,!etc .!A c c o rd i n g !to !the!actual!o u t d o o r!s it u a tio n ,!n e c e ss a ry !p r o te c tio n !
measures!must!be!taken,!besides!ensuring!the!electrical!safety.!
! The!distance!between!signal!transmission!wires!and!High?voltage!equipment!or!high?voltage!cable!is!at!least!50m.!
! Outdoor!wiring!should!better!be!routed!under!eaves!as!much!as!possible.!
! In!th e !open !field,!wiring !shou ld !be!buried !unde rg ro u n d !in! sealed!steel!pipe,!and! the! steel?pipe!should! be! one? point!
grounding.!Overhead!routing!method!is!forbidden.!
! In!strong!thunde rs to rm!area!or!high!induction!voltag e !areas !(such ! as!high? vo ltage!transformer!substation),!high!
power!lightning!protection!apparatus!and!lightning!conductor!are!necessary!to!be!added.!
! The!d esign!of! lightn in g !p ro te ctio n !and!grounding!of!the!outd oo r!device s!and !cables!should!be!considered!together!
with!the! lightn in g! protection ! demand! of! buildings.! It! also! m ust! conform ! to! the! related! nation a l! st an d a rd s ! a n d !
industrial! stan dards.!
! The! system!should!be! equipotential!grounded.!The!grounding!equipment! must!conform!to!th e!de m an ds !of!system!
anti?jammin g! and! electrical! safety! both! and! it! must! not! appear! short! circuit! or! mixed! circuit! w ith! the! zero!
conductor!of! strong! grid.! W hen ! the! system!is!grounded! alone,! the! re sis t ance! sho u ld ! be! no ! more! than! 4Ω.! The!
sectional!area!of!the!grounding!cable!should!be!no!less!than!25mm2.!For!grounding!instructions,!please!refer!to!the!
Installation!Man ual!of!S pee d!D ome.!
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Figure!A?1!Lightning!&!Surge!Protection!
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