Document ID: chunk:federal_register_of_legislation:F2011C00881:body:0:p10
Version: federal_register_of_legislation:F2011C00881
Segment Type: other
Provision Reference: 
Character Range: 23257–26302

components caused by:
 (i) operation of switch contacts; and
 (ii) faulty cable terminations; and
 (iii) breakdown of electrical insulation; and
 (iv) moving contacts or rotary electrical equipment; and
 (v) accidental short circuiting or open circuiting; and
(c) exposure of hot parts to combustible matter; and
(d) overheating of working parts to the ignition temperature of any combustible matter in the vicinity of the engines.
      2.2 Parts of the equipment requiring attention are:
(a) fuel system; and
(b) exhaust system; and
(c) electrical system.

     2.2.1 Fuel system
       The carburettor air intake shall be fitted with a flame arrestor, such as a backfire non-return valve, or an efficient baffled and screened air cleaner.
       The fuel tank shall be securely mounted, and the tank and its filler shall be positioned so that fuel cannot be inadvertently spilled on the engine, its exhaust, electrical and ignition system.
       Fuel tank filling openings shall be fitted with well fitting caps.
       Liquefied petroleum gas systems shall comply with Australian Standard 1425 and Australian Standard CB20, but excess flow valves and non-return valves shall be fitted irrespective of size of tank.

     2.2.2 Exhaust System
       The exhaust system shall be provided with means to prevent hazardous emission of incandescent carbon or naked flame. Baffled standard vehicle mufflers, of good automotive design, and in good condition are acceptable.

     2.2.3 Electrical System
       Standard vehicle wiring shall be maintained in good condition. All additional equipment such as obstruction lights, shall have wires and cables well supported, with insulating grommets fitted wherever they pass through metal panels. Equipment shall be suitably insulated and mechanically protected to prevent breakdown during use.
       Batteries shall be suitably covered to prevent accidental shorting of cells and shall be provided with adequate means of natural ventilation.

3 Fuelling vehicles and plant
       Aircraft fuelling vehicles and plant shall comply with the following:
(a) be fitted with an isolation switch between the battery and electrical services;
(b) the engine exhaust outlet to be remote from the fuelling equipment;
(c) all electrical wiring to the rear of the vehicle cab shall be mechanically protected;
(d) exposed electrical terminals shall be protected by insulating boots or covers;
(e) generators, motors, switches and relays shall be of a type which will prevent emission of hazardous sparks.

4 Electrical equipment

      4.1 Equipment above ground level
       All fixed and portable electrical equipment (other than vehicular) shall be of the same requirements as the SAA requirements as for equipment operated in Class 1, Division 2 locations, as specified in the SAA Wiring Rules, Part 1, except that arc-producing devices such as switches, contactors, etc., which are not operated during fuelling or defuelling operations need not to conform to the requirements for this class of equipment. The