South Australian Consolidated Regulations South Australian Consolidated Regulations23A—Work in proximity to exposed conductors etc
(1) Work must not be
carried out in proximity to exposed conductors or exposed parts of electrical
equipment unless—
(a) it
is carried out—
(i)
by a person who is suitably trained and qualified for
such work beyond the approach limits set out in this regulation for such
persons; or
(ii)
by a person who has been instructed in the identification
of high and low voltage overhead conductors and the safety aspects of work
near live powerlines beyond the approach limits set out in this regulation for
such persons; and
(b) it
is carried out beyond the approach limits set out in this regulation that are
applicable in the circumstances.
(2) However, a person
may work within the approach limits if—
(a) the
work can be carried out safely in any of the following circumstances:
(i)
there are installed suitable barriers or earthed metal
shields between the person carrying out the work and the conductors or
electrical equipment;
(ii)
the work to be carried out is testing of equipment and
the equipment is designed such that the approach limits cannot be complied
with;
(iii)
the work to be carried out is earthing of the conductors
or equipment and is carried out after the exposed conductors have been
isolated and proved to be de-energised; and
(b)
written instructions have been given, either generally or in a particular
case, about the work and the precautions to be taken.
(3) For the purposes
of this regulation, the approach limits for a person, including an article of
clothing worn by a person, or a conductive object held or carried by the
person, are set out below—
|
Voltage of conductor or equipment |
Approach limit A |
Approach limit B |
Approach limit C
| |
|---|---|---|---|---|
|
(Distance in metres) | ||||
|
Not more than 1000V |
0 |
0.3 |
3.0 |
1.0 |
|
More than 1000V but not more than 11kV |
0.3 |
0.6 |
3.0 |
2.0 |
|
More than 11kV but not more than 33kV |
0.45 |
0.9 |
3.0 |
3.0 |
|
66kV |
0.7 |
1.4 |
4.0 |
4.0 |
|
132kV |
1.2 |
2.4 |
5.0 |
5.0 |
|
275kV |
2.0 |
4.0 |
6.0 |
6.0 |
where—
(a)
approach limit A applies to a person suitably qualified and trained to work in
proximity to exposed high and low voltage conductors or exposed parts of high
and low voltage electrical equipment;
(b)
approach limit B applies to a person who has been instructed in the
identification of high and low voltage overhead conductors and the safety
aspects of work near live powerlines;
(c)
approach limit C(i) applies to a person using power operated tools;
(d)
approach limit C(ii) applies to a person using manually operated tools.
Subdivision 3—Work on or near exposed high voltage conductors or
electrical equipment