AS 3891.2:2018 pdf free

AS 3891.2:2018 pdf free.Air navigation – Cables and their supporting structures – Marking and safety requirements
any aviation operation that involves flight below 500 feet (approximately 152 metres) above ground level, that is permitted under the Civil Aviation Act, Civil Aviation Regulations (CAR), Civil Aviation Safety Regulations (CASR) or a Civil Aviation Safety Authority (CASA) permission or exemption and which involves planning for the safe conduct of the operation
Typical aviation operations within the scope of this Standard include aerial application, firefighting,mustering, emergency services response, power line inspection, survey, media, parachuting and ballooning operations conducted under an approval, licence or regulation issued by the Civil Aviation Safety Authority (CASA)
Such operations do not include operations conducted as a result of an aircraft or pilot operational emergency, such as medical incapacitation, force of weather, engine or airframe failure or any issue of a similar nature
Aircraft warning markers for attachment to cables and structures, or for positioning in close proximity to cables and structures, shall be of types specified in this standard and shall comply with Clause 2.2.
NOTE Any cables and/or supporting structures which are not capable of supporting a marker of a design which conforms to this Standard should be marked with the nearest approximation to these requirements or using non-cable mounted solutions. The selected approach should satisfy the mutual requirements of the asset owner and the pilot or entity requesting the marking.
The following design aspects shall be considered and documented for aircraft warning marker design and implementation:
(a) Attachment 一For cable-mounted markers, the method of attachment shall prevent slippage of the marker under the nominated serviceability conditions.
(b) Damage 一Prevention of damage to the cable, support structure and other fittings, under nominated serviceability conditions.
(c) Visibility 一Visibility that presents good contrast with the likely surrounding background and conforms to the specific marker requirements of Clause 2.2.2.
NOTE A reflector or light-emitting device may be attached to the marker.
(d) The weight of the marker should take into account increases in cable sag and tension, and reduction in cable-to-cable separation and ground clearance.
(e) Vibration 一Take into account any increase in vibration of the line caused by the fitting of the marker.AS 3891.2 pdf free download.