EGX_PROD_n6923390_191_Hollett_Road,_Noosaville_L53_SP163571

        J&P Richardson Industries Pty Ltd       -15-


6.3.2   Subdivision lot layout
        The main way that prudent avoidance is applied in subdivisions is to increase the distance
        from the source.

        Practical ways in which prudent avoidance can be incorporated into the plan development
        include the following :

                   a. Not positioning buildings close to the property boundary abutting the
                      easement

                   b. Locating bedrooms and main living areas at the opposite end of the
                      residence where practicable.

                   c. Orienting lots so that the short end of the building is parallel with the axis of
                      the transmission lines.

        The subdivision design has considered and applied prudent avoidance principles in the
        latest subdivision layout plan (refer Appendix 1). It can be seen that a buffer zone between
        the building envelope and the edge of the power line easement has been included. The
        buffer zone will reduce the magnetic field levels within the dwelling and therefore lower the
        resident’s long term exposure.


6.4     General Electrical safety considerations

        The two main areas of hazard are as follows :

        1. Direct contact with the energised conductors

           Sub-transmission lines such as 132kV F790 and F7298 do not employ systems to
           restrict earth fault currents and can be associated with very high fault currents.
           Combined with the energised voltage level these circuits become very unforgiving of
           inadvertent contact - likely to lead to serious injury or death.

        2. Contact with a concrete structure during an earth fault.

           When an earth fault occurs on the transmission line, current takes all paths to earth
           back to the source, including through the structure foundation. This current flow causes
           a rise in potential (voltage) on the pole. This potential can be a touch hazard to persons.


        In order to minimise these hazards, it is recommended that any development within the
        easement area :

              Have prior approval of ENERGEX

              Minimise the opportunity for persons contacting the concrete line structures (for
               example keep walking paths a minimum of 5m from pole bases).

              Minimise the opportunity for persons frequenting the area directly under the
               conductors themselves.(for example play equipment kept as far as practicable from
               the line itself).




        Hollett Road EMF Study                                                           V1.0