Overcoming High Zs

[m4tty]

Hi,

State 3 possible methods of overcoming the problem of high measured value of earth fault loop impedance (Zs)?

1) RCD ?

2) Increased CSA cable to bring down R1 + R2

3) ?? Shorten Circuit ??

Thanks in advance

Matt

 

[green-hornet]

1

RCD everytime

2 equiptotential bonding

3

cant remember

 

[Andy™]

additional cpc

 

[green-hornet]

and additional cpc

 

[tom1]

what about suplimentary bonding???

 

[a1]

what about suplimentary bonding???

GH, has said that one.

RCD is most Popular, Then Supplementary Bonding, Then Additional Circuit Protective Conductors.

 

[SPECIAL LOCATION]

Or even...............

Reduce the rating of the protective device!?Blushing:O

 

[Andy™]

Or even...............Reduce the rating of the protective device!?Blushing:O

or type (ie MCB to fuse)

 

[Bez]

Move house, closer to the sub-station ROTFWL

Sorry:coat