2.1: Residential—Multiple detached units
65
HB 301—2001
Schematic diagram
M SB
SM2
SM1
CM
Vo lts D ro p % CM SM 1 SM 2 SM 3 SM 4
SM4
SM3
Le ngth m
Final Subc irc uits 2 .4 5 %
35 30 20 20 30
1 1 .5 5 1 .5 5 1 .5 5 1 .5 5
Preliminary single line diagram
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P O IN T O F S UP P LY 1 0k A
M AIN S W IT CHBO AR D
B
A
N
C
Ac tive L in k S erv ic e F u s e M EN M
M
M
M
X 1 0 0 A CB M ain S w itc hes
X
X
X
M
N /L
M ain Earthing Bar
10 A SM 1
SM 2
Un it 2
SM 3
Un it 3
SM 4
Un it 4
Ex tern al Lig htin g Eq u ip o te n tia l Bo n d
D is trib utio n Bo ard Un it 1 T y p ic al C om p ly in g w ith AS /N ZS 3 01 8
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N o tes : . S erv ic e fu s es u p to 1 0 0 A HR C . M ain S w itc hes are s in g le p o le 1 0 0 A C B 6 k A . S u b m ain s are all s in gle p has e, N eu tral & Earth . N eu tral & Earth n o t s h ow n fo r s im p lic ity .
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