Page 22 - Louisiana 811 Magazine 2019 Issue 4
P. 22
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Can’t get a good gound? Now what? EVEN E‘-“'9
La:11mtg15 .1.» o11s1.o11gm..-.5 and pm...1=..1 Everything _1/auVmaI<Ia(1]_1/aucrI11 hank lo .1 1.1 am rincsn '1 1.1.1.115 lanzlc 111.» .1 says .1 111.111.. 11.2
hank. so, w.~'ae;.m.d an o1d1oaz1.m..I.o 1.1.. bran railed on many umcs /ar help. H.» wr1511'n11vaIwd 1.. bmlrimg 11.9/11.1 laczzhng 111m, 1m1 1.»
p1'almbI_I/ 115011 .1 Mrs Dr hum bk/arc he upgraded’ w.» 1.121111...» Srrdc Bmzm to 0141' farmly ajsubjccl mullcr erperls 1-1.5 anus o/1.11.1115 1.. 11.2
upcarrvzng am Mr1gr1zm('5 are ll/VIIICVI .1111. yau, 111.» 1mI1Iy 11.11.1171, 111 mmd 111.9 ricm5v1'r man your queslnm, /uslrattlatfhirrt and 1.»: hm: rcspaud
to your 5,211./.1 sflmzlnm. 1 know 1.111 111 am.» 1111... 3111.1 1.; hclp you X.» .1 1.31.1. 121111.51...
nyom: who has bncn cable navel lo the end of Ihn cable. 11 may be The jcumcd ends, a111.oug1. possibly
locatmg for any um: w1Il that you need a device 11.a1ha.. om. a |nsulalcd,w1Il1mv£ some capacitance
be quick to pmnt am a h1g1\nr imqucncy 11.a1 you 1yp.ca11y use across (111: ,o.n1 Using low nequency
fnw useful ram 1ha1 help In hclp you on 1h.. one. Typmal locate p|pL‘ damning tv:chn1qu£~ doe. nm
11. lacatn a table or p|p£. These may frequencies (End to be in 11.2 range of $21 a good s|gnaI pa1h but ~'w1Ich1ng
Include: 51211211. 32141;. T1.“ frcqunnclm 1o 43111412 auuw. Lhc ugnal to um: (11:
_ N Y _ Y I I f V offer good Mgnal 1o noun localm Wham capacitance of 11.1 ,o...1 Io .u.np um the
“ “Y” "3 ° “*9 " “W '°‘1“°"“> good gmundmg is prr:~1:nI Have you msulaled secuon.
- Makc sure the hue 1.a.- good cunmdcred uamg .on.u1h.ng 1n the A Wm of Wm!“ M We have
conlmuity range of48UkHz for poo. gmundmg mm ‘hi M of high ‘énqumdcs ml‘
. 1 1 -7 ' . *
- Makn sure L1.a1 ho1h end. am well " "'1 mm 4311111-12 can be beneficial .n many
grounded :1. whyfifignzi Well 11;e a.l.l.-.1: .3 f.h.aun..-1a;.co., 13.2‘. 1.13 :11 gouddlhlnga
1 I I .‘ " . ' '. . 1
‘°““°<"°" capamlancz of Lhe table to ground. u~12r 11. apprecmle 11.2 benefila of lugh
T1,“ am all good ,,,ggm,D,,,, but There's no nend to go .n1o >£><pl.1nat1ons noauenay lozalrs tones. The 1.11.. main
WC know ,1“, MC ,5 my filmy, ,0 olfv;1ha; Lh|sh1s,bul ~ufficc;l 1o say— dnwnsudm am:
a1mpk‘.TakC, fur 1n~t.1n£I:. the thud he -14 mm C im<1uer-Cy. he gmmcr 1 H h ‘ I I ‘ b , L.‘
auggmuon "makn aure both ends am dim vHvrl~- Nvw |h-~ lmlps W-th H’ a ggfecf”
WE“ gxoundcd " Many oah1o. w1ll ungwunde-1 cabin beta-he the gm am mm m 1 ublncd 0",, efim
b d d‘ h 5 d 1, capanlancv: man. a .-o.1 cl pseudo * ‘ '
1°13“ 1.
3 E ‘ ‘ PP) 5 through 11.2 gmund may h.1o1. a ride
“ 1°” "“‘I“‘“‘Y 5'5"“ ‘°“‘“° ‘°"'= '“ “""‘ ”‘° ‘°“d“"°§ '“‘° ‘h“ g‘°‘"‘d 1 on otlmr utilities he.-u11.ng in muluplr:
mm, c,,c,,,,,,mm, an bc ,,_,,,k,.‘ and so tomplzlm 1.o cucuil back 1o 1.2 1
- .1 .Lh.Th. d1 b. 11
Fur exampli‘, shun tzlnphone d.up.- 1.. a uammmcr» Us-ng the 480kHz mode ;:§:;,,.‘:‘n C;mh§]:::'t'ing°'m:h;',':;,;.'
,,m,,,,.c W," Pm.,a.,;y M. 1,2 gr‘)undEd/ hnlps detect (heat short, uncarlhed an he‘ to mlmmy the mmmm *
pot ended cablm 11...1 have bzvn cable dmP»- >
Insrmmalcd betaum they am no longer “"5 I. M W M of am My as 21A» the menu! wm "bleed off" over the
ngquiyed D, bmnsc Lhcy hm 1,mn1,..d mkm an “M bc a gm‘ Mp m enluu length of the Eabllt, 11.1 distance
.n anllupauon or bung used later are dcmmg old“ CM mm P,pd,,,E, the usual w-I1 travel along the table
al~u ..1.1 1.1111,, 1.. be groundud, Many of mm, Pwehm mu have o. p.pe w.11 be In» 11.an 1ha1 of a law
’ ’ 1 .- 1. 1 .1. 111 b d
., am no Emuna, 0, am gfDund‘ng 1n~'ulz1lcd ,o...... 11... electrical dijfijg ;;2;;m *u~u:‘{ locflgjfm
,,. Pom, makmg a good gmund .n.-u1a1.un may bc a n:~ultnicnrmd1ng H alW>ay~5bm Whgm goéd ground‘ Am
connection at Lhe application pu.n1and 1mm» and mm and bolt». qr because the fimcm ’ .
chctkmg fox contmuny .5 no1 going ~=-wlms mam-jal use-1 to 10-“ th‘ P‘P'35
11. help matters ilSI1'1EXL‘|S nowhcm can mam an -n~'ul-He-1101“! E-ther way. 1f1/1m hm qucshutta or amzvrzmta abum‘
10, 11,9 5,3,”. .9 “M; .0 .;,1.m ,. no 11...- Is bad news to. .-onuonc txymg 11.15 1:11.111 o. related fu;1i4‘5, /11:1 fret 111
gmmd fl‘ [l‘2 fa! end we should M a 11. detect 11.. po..1.on of 11.2 pxpclmc. w1mz(I Sfwc or
d1ff1:mnl technique 1.. get the signal to C-wmuve =Hm~'1ml1> hm aim , . ,
5!wc.Z1mzttkUv).:nLmm.
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