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RADHAZ Flashcards

1
Q

How do you identify RADHAZ Zones

A

RADHAZ deck markings: Red lines with arrows pointer to the emitter

YELLOW Signs Black oh yellow signs

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2
Q

How to you get access into the RADHAZ Zones

A

Sign into the RADHAZ Log
During emergencies OOD will call RADHAZ correct

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3
Q

What are Lasers

A

Lasers are optical sources which highly focussed with the potential to cause damage to eyes and skin

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4
Q

What are the effects of RADHAZ to personnel

A

Absorption - absorption of radiated energy by the human body
Shock and burn - the danger of electrical burns and shock
Electro Stimulation - where the body acts as an antenna and currents induced
Microwave hearing effect: Nuisance buzzing sounds
Contact Currents - results from voltages induced when touching objects
Implant Currents - are induced currents from medical devices

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5
Q

What are the Hazards associated with RADHAZ?

A

Non Ionising
Ionising
Laser

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6
Q

What are the RF Hazard to Fuel, Ordinance and Systems

A

Fuel: Explosion
Ordinance: Explosion and deactivation
Systems: EMI/EMC - interference

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7
Q

What is ionising energy

A

Ionising radiation is able to strip electrons of atoms.

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8
Q

What is Laser 3B

A

Unsafe for eyes but safe to skin

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9
Q

What is laser class 1M

A

Safe with no viewing aids

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10
Q

What is laser class 4

A

Unsafe to eyes
Unsafe to skin

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11
Q

What is Non Ionising Energy

A

Non-ionising radiation has sufficient energy to break chemical bonds and does not produce cancer or genetic mutation

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12
Q

What is normal emitter configuration

A

What RADHAZ markings are marked and RADHAZ keyboard have been configured for.. as opposed to maximum emitter configuration

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13
Q

What is RADHAZ

A

RADHAZ is a very generic term referring to Hazard caused by all radiating energy.

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14
Q

What is the Laser RADHAZ to personnel

A

Optical Damage, Skin burns

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15
Q

What Lazer Classes are employed on FFH’s

A

Class 3B FCD Director
Class 1M Toplite

Handheld Class 3B

Helo has class 4

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16
Q

What’s the number for the RADHAZ log

A

AE036

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17
Q

What’s the procedure to access a RADHAZ Zone

A
  1. Seek approval from the OOD and sign into RADHAZ log
  2. OOD will ensure keys are on board (or positive control)
  3. OOD gives approval (verbal and written) when it’s safe
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18
Q

Who is responsible for providing advice on all technical aspects of radio hazards?

A

The WEEO

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19
Q

Who is responsible for RADHAZ onboard

A

The CO

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20
Q

Are RADHAZ Zones Total Exclusion Zones

A

True

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21
Q

What are controlled sources

A

Controlled sources are substances and devices that ARPANSA deem so hazardous as to require a license to own or operate

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22
Q

What are some of the properties of the RADHAZ Keyboard

A
  1. Visually represents status of emitters
  2. Contains a stowage of STT Keys
  3. Lockable
  4. Readily assessable from both the bridge and gangway
23
Q

What are the authorised documents for managing confined spaces within Navy

A
  1. Confined Spaces Register
  2. Authorisation Matrix
  3. Confined Space Risk Assessment Register AC869
  4. Confined spaces Entry Permit Register AC870
24
Q

What controlled devices are kept on FFH’s

A
  1. Chemical Agent Dector Kit
  2. Aiming Light
25
What information is stored in the RADHAZ & Laser SOP
1. RADHAZ zone and identification 2. RF emitter control procedures 3. Special evolution and Special maintenance RADHAZ procedures 4. Laser source identification and management procedures 5. Controlled source identification and management procedures 6. RF Radiation source identification. Approved configurations and safety information
26
What is a confined space
1. A space not designed or intended to be occupied by a person 2. Is designed to be a normal atmospheric pressure 3. Is likely to cause a risk to health and safety from a. An atmosphere that does not have a safe oxygen level b. Contaminants including airborne gases, vapours and dusts that may cause injury from fire or explosion c. Harmful concentrations of any airborne contaminants d. Engulfment
27
Where are all confined spaces required to be listed?
Confined Space Register
28
Where is the RADHAZ and Laser SOP Kept
1. Bridge 2. Gangway 3. Wardroom 4. DCC 5. COMCEN 6. OPS Room
29
Will temporary control measures such as providing ventilation declassify a confined space?
No
30
How often is RADHAZ training conducted
1. RADHAZ General Awareness Training: On Joining: New Joiners, Unescorted contractors and embarked forces 2. RADHAZ zone walk through: on joining 3. 2 monthly RADHAZ Procedural Brief: People involved with RADHAZ Implementation: OOD, AOOD, OOW, AOOW, PWO CPO PO CIS, CPO PO CSM/S 4. Every 6 months, RADHAZ Walkthrough- part of DC024 circuit training program 5. Every 12 months, refresh of RADHAZ General Awareness Training 100% ships company
31
What is level 3 training
The Defence Radiation and Safety manual lists the minimal standards required level 3 training. The prepared PPT on the Navy Engineering site covers the level 3 requirements
32
What RF Training do personnel need
RAN vessels are considered an “RF Site”. Personnel who work in an RF Site are called “occupationally exposed workers” and are required to receive “level 3” training.
33
What is occupational exposure
Occupational exposure generally occurs in controlled areas where the exposed is aware of their exposure and the hazards and controls. Occupational exposure can only apply to people who are regularly and deliberately exposed above non-occupational. RADHAZ surveys are conducted to occupational levels.
34
What is non-occupational
Non occupational levels apply to: - Civilians personnel who do not use or aware of the dangers of RF sources - members of the public where there is no direct control or surveillance of exposure - pregnant members - personnel under 16
35
What are some electro explosive hazards
1. RADHAZ to ordinance 2. Electrostatic discharge 3. Lightning 4. EMP 5. Transient radiation effects on electronics 6. Magnetic fields
36
Fuels are divided into two categories, what are they?
Flammable: having a flashpoint no more that 60 degrees C Combustible: having a flashpoint above 60 degrees C
37
WRT RADHAZ, what are the responsibilities for all people onboard an RAN unit
1. Have an understanding of the unit’s RADHAZ organisation 2. Read and comply with class RADHAZ SOPs 3. Ensure they have received appropriate RADHAZ training
38
When should procedural RADHAZ training occur?
Every 2 months
39
What is the RACO log
RACO log is the folder containing safety requirements for an RF site. For a ship the RADHAZ SOP, training records and RADHAZ survey will fulfil this requirement.
40
What is a STT Key
The safe to transmit kit is a hazard mitigation to control emissions of electromagnetic radiation. It is used to put an emitter into a known state.
41
What are some features of a STT Key
- inhibit or attenuate emission of radiation from antenna to non-occupational limits - remain effective during a reboot or restoration of power - allow a system to be locked into an inhibited state - provide unique locking - be associated with an antenna not a general emitter - not allow any transmission if key is removed
42
What is a STR key
Safe to rotate renders the rotating elements of an antenna inoperable.
43
Why is the STR key managed separately to STT keys.
STR keys are managed separately to STT keys in order to allow maintenance to be conducted where one aspect of the system is to be controlled.
44
What is a working at height switch
These are additional controls which are located to access points to areas to allow for maintenance to be conducted. These should be used in conjunction with STT and STR procedures.
45
What is sector blanking
These are used to conduct specific operations.
46
What is the the E3 Manual
ANP4412
47
What does E3 mean?
- Electromagnetic - Environment - Effects
48
Who is the main point of contacts for RF matters
Fleet RF Engineer
49
What’s the name of 3 common RADHAZ Surveys
RADHAZ Survey Frequency Accuracy Trial Topside Visual Survey
50
How often is a FAT conducted
Every 5 years or changeout of changeout of TXers
51
How often is a Top Side Visual conducted
Every year
52
How often is an EMI survey conducted
Every 5 years or changeout of upper deck configuration
53
Where is the duplicate keyboard stored?
WEEO office
54
How often are RF Surveys conducted
- Every 5 years - Structural changes - installation of new equipment (new RF transmitter) - after technical changes to existing equipment - as requested

Safety (14 decks)

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