EGX_PROD_n6923390_191_Hollett_Road,_Noosaville_L53_SP163571

      J&P Richardson Industries Pty Ltd         -6-


3.0   BACKGROUND ON MAGNETIC FIELDS


3.1   ARPANSA and ENA

      ARPANSA stands for the Australian Radiation Protection and Safety Agency. ARPANSA is
      a federal body that monitors and identifies solar radiation and nuclear radiation risks across
      a wide frequency spectrum to the population of Australia.

      The Energy Networks Association (ENA) is the peak national body representing gas and
      electricity distribution businesses throughout Australia. ENA has specific interest in electric
      and magnetic fields at power frequency (50Hz).

      In January, 2016 the ENA published the “EMF Management Handbook” which is
      considered to be the most up to date reference on the topic for Australian power networks.


3.2   Australian Guidelines

      The ENA handbook lists two sets of internationally recognised guidelines on EMF :

         a) International Commission on non-ionising radiation protection ( ICNIRP )
            “Guidelines for limiting exposure to time-varying electric and magnetic fields ( 1Hz-
            100kHz )” : 2010.

         b) IEEE International committee on Electromagnetic safety on non-ionising radiation
            “IEEE standard for safety levels with respect to human exposure to electromagnetic
            fields” :2002.

      As ARPANSA directly references ICNIRP 2010 as a guideline for exposure, the ICNIRP
      document will be used as the primary source for EMF levels in this report. It is noted that
      the IEEE guidelines provide an alternate set of limits which could be applied to specialist
      exposure environments.

      The reference levels for EMF exposure as listed in the ICNIRP guidelines ( Table 5-2 and
      Table 5-3 ENA Handbook ) are shown in Table 3 below.

      Table 3        ICNIRP reference levels for 50Hz EMF exposure

                                                       ELECTRIC FIELD         MAGNETIC FIELD
                    EXPOSURE TYPE                        STRENGTH               STRENGTH
                                                          (V/m)                   ( mG )
       Occupational ( General )                             10000                  10000
       Occupational ( head and torso)                    Not specified          Not specified
       Occupational ( arms and legs)                     Not specified          Not specified

       General public ( General )                            5000                   2000
       General public ( head and torso)                  Not specified          Not specified
       General public ( arms and legs)                   Not specified          Not specified




      Hollett Road EMF Study                                                           V1.0