[Stephen Albrecht]

Hi Graeme,

At MainPower:

Two-pole structures come in both “Pi” and “H” configuration. “Pi” structures look like the “Pi” symbol (horizontal brace at top of two poles that overhangs each side). “H” structures have a brace that doesn’t overhang.

HV two-wire construction is referred to as single-phase.

SWER is referred to as SWER.

General terminology for phasing within the GIS and on plans is RWB, i.e. “White” rather than “Yellow” phase. The guys in the field often still refer to “Yellow” phase. I suggest specifying “White” phase, as this has been the industry standard for some time now, and include a note in the handbook referencing old UG/OH phasing terminology used “Yellow” phase rather than “White” phase. Note that coloured phasing tags are used on the OH, therefore, the issue of “Yellow” and “White” applies to both UG and OH systems.

Regards

Stephen