To bond or not to bond

Trevor E: 
 

Hi,

Am spurring off a ring final to supply a 5A fused unit for operating a shower pump fitted to the water pipes in an airing cupboard. If my pipework is not continuous in metal then I need supplementary bonding between the pipes but if it is discontinuous then I may need equipotential bonding, can anyone please provide more of a steer on the latter point?

The question is a little confusing. The pump will automatically bond itself to any metal pipework via its C.P.C. 544.2.5.

701.415.2 may apply, but the pump is not actually in the bathroom or shower room. Supplementary protective equipotential bonding may be omitted under certain conditions.

30mA R.C.D. protection is essential though.

Z.

Trevor E: 
 

Hi,

Am spurring off a ring final to supply a 5A fused unit for operating a shower pump fitted to the water pipes in an airing cupboard. If my pipework is not continuous in metal then I need supplementary bonding between the pipes but if it is discontinuous then I may need equipotential bonding, can anyone please provide more of a steer on the latter point?

The question is a little confusing. The pump will automatically bond itself to any metal pipework via its C.P.C. 544.2.5.

701.415.2 may apply, but the pump is not actually in the bathroom or shower room. Supplementary protective equipotential bonding may be omitted under certain conditions.

30mA R.C.D. protection is essential though.

Z.