SBEF REF

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  • 8/12/2019 SBEF REF

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    apprenteng(Electrical) 17 Dec 08 2:54

    Hallo guys,I have a scheme here!y the "eutral o# a 2$%&' $$11& tra#o has o"ly o"e "eutral *+ (-.HI/) o# class +he i"comer !reaer too has class *+s I a"t to use I*+ to !e a!le to use the si"gle !ushi"g *+ #or!oth .E3 a" E3

    Is it sa#e to use the I*+ or is the E3 alo"e su##icie"t #or 6rotectio" o# the +ra#o i"i"gs a" the ca!le to thei"comer !reaer

    Marmite(Electrical) 17 Dec 08 4:10

    +he E3 a" .E3 are to se6arate 6rotectio" #u"ctio"s +he E3 ill 6rotect the tra"s#ormer i"i"g a"the ca!les to the !reaer .E3 is sta"!y earth #ault 6rotectio" It is !acu6 6rotectio" i" case o# u"cleare#aults out o" the "etor, or earth #aults outsie the E3 o"e It may also 6rotect the "eutral earthi"g resistori# there is o"e, a" may act as a chea6 !us!ar 6rotectio" system !y tri66i"g the & !us sectio" #irst a" thetra"s#ormer & * seco" Do you really a"t to com6romise im6orta"t !acu6 6rotectio" #or the cost o# a"eutral *+9 ou have the o6tio" to get a"other *+ #itte i" the !ushi"g, or i# there is a "eutral ca!letermi"ate o" the !ushi"g you coul i"stall a sli6over *+ o" the ca!le, or i" the /E ca!le !o; ots o#6ossi!ilities, a" "ot very e;6e"siveegars%armite

    apprenteng(Electrical) 17 Dec 08 7:4