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Office of Fair and Safe Work Queensland
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Home > Electrical Safety > Law and penalties > Code - Working Near Exposed Live Parts > 5. Operating cranes and plant near overhead electric lines > 5.3 Exclusion zone

5.3 Exclusion zone

Exclusion zone for operating plant means the exclusion distances as listed in Appendix B for operating plant working near live electric lines.

A person must not operate any crane or plant in situations where:

The exclusion zones for operating plant operating near electric lines, are listed in Table 5.1.

Table 5.1 OPERATING CRANES AND PLANT NEAR OVERHEAD ELECTRIC LINES

Nominal phase to phase voltage (kV) (Exposed unless otherwise specified) Untrained person operating operating plant* (mm) Authorised person or instructed person operating operating plant*, with safety observer
Un-insulated portion (mm) Insulated portion (mm)
Insulated low voltage with consultation & Insulation verified 1000 - Contact allowable
Low voltage (LV) with consultation 3000 1000 Contact allowable
Low voltage (LV) without consultation
> LV & up to 33 with consultation 1200 700
> LV & up to 33 without consultation
> 33 & up to 50 1300 750
> 50 & up to 66 1400 1000
> 66 & up to 110 1800  
> 110 & up to 132
> 132 & up to 220 6000 2400
> 220 & up to 275 3000
> 275 & up to 330 3700
> 330 & up to 400 8000 4000
> 400 & up to 500 4600
Nominal Pole to Earth dc Voltage (kV)      
+/- 25 3000 1200 700
+/- 85 1800 1000
+/- 150  
+/- 270 6000 2400
+/- 350 3200
+/- 400 3600

*Operating plant includes fixed location cranes (eg. tower cranes)

Table 5.1 Exclusion zone for operating plant operating near electric lines (extract from Appendix B)

Last updated July 16, 2009