Fibre Optic safety Flashcards
What are the 4 main safety aspects?
Chemicals
Light sources - Lasers/LED
Glass/Sharps
High Voltages
Name 3 of the chemicals Used and describe what they are used for?
Isopropyl Alchohol (IPA) - Used for cleaning the bare Fibres.
Methylated Spirits - Removes surplus grease from loose tubes.
Paint stripper - When primary coating has become brittle.
Resins and superglues - for termination of a fibre with connector.
When working with chemicals what are the 4 main risks areas?
Absorption
Ingestion
Fire/explotion
Drowsiness
What regiulation apply when working with chemicals?
COSSH Regulations 2002
What should you read when working with chemicals?
Safety Data Sheet
Where should food and drink be stored?
Safe area
Whast should be the last thing you do after working with Fibre?
Wash your hands
What should you always wear when working with Fibre?
PPE - Gloves
- Goggles/face mask
- Protective coveralls
When working with Fibre optic infrastructure there are 3 light sources?
LED - Light Emetting Diode
VCSEL - Vertical Cavity Surface Emitting Laser
LASER - Light Amplification by Stimulated Emision of Radiation.
What range of light can the human eye see and what range is uded for Fibre?
390nm - 750nm Human eye
850nm 1550nm Fibre
What does LED stand for what mode is it used for and what is its range?
Light Emitting diode
Multimode
790nm - 1300nm
What does VCSEL stand for what mode is it used for and what is its range?
Vertical Cavity Surface Emitting Laser
Multimode
790nm - 1625nm
What does LASER stand for what mode is it used for and what is its range?
Light Amplification by the Stimulated Emission of Radiation
Singlemode
1310nm - 1550nm
Lasers emit light of a single freq called _____ light.
Coherent
Name the 7 classes of laser and power?
Class 1 0 - 0.0004mW Class 1M 0 - 0.0004mW Class 2 0 - 1mW Class 2M 0 - 1mW Class 3R 1 - 5mW Class 3B 5 - 500mW Class 4 500mW+
Laser clasification are categorised by what BS EN and military refrence?
BS EN 60825-1:2014
JSP390 - Military laser safety
How would you know the calss of laser you are working with?
A sticker most likely on the back of the device will contain this information.
What are the safety precations when working with Fibre?
Always have dust caps over the unused ports and connectors.
Disable transmitters before working on it.
Chewck power meter that no optical signal is present.
Display Warning signs.
Team must be briefed on the Danger.
Be aware of reflective surfaces (Jewellery and chrome fittings.
What refers to the health and safety risk to workers due to adverse effects caused by exsposure to Artificial optical radiation?
Control of artificail radiation at work regulation 2010
Define artificial optical radiation?
Electromagnetic radiation in the wavelength range between 11nm and 1mm wich is emitted by non natural sources
What is OPtical fibre made from?
Silica glass
What precations are you to take when working with optical fibre?
Do not pick up by hand (use tape, not tweezers)
Always wear safety glasses
Do not consume food and drink in your work area
What must be contained in all work areas for bare fibres
CIN-BIN
What joins fibre filaments?
Fusion Splicing equipment
What should you not do with fusion splicing equipment?
Do not use in exsplosive enviroment
Do not attempt to overide any safety mechanisms
Make sure equip is physically safe electrically safe and has been PAT tested
