Both applied voltage and body resistance
At low temperature
At high temperature
At both low and high temperature both
Break down maintenance
High electrical resistance and high loading
Energised ground cables, open circuits and short circuits
Dynamic unbalance of a rotating machine
Any electrical person provided he or she knows how to use IRT camera and asked to do so.
Any electrical person provided he or she knows to use IRT camera and wears proper PPE.
Only by approved contractors (i.e.Yellotec)
A risk assessment must be prepared before performing any electrical work
A risk assessment does not need to be documented for simple tasks such as changing a light fitting
Risk assessments are only necessary for live work
Touching a 24 V dc battery terminal with hand.
Using a faulty 110V ac power tool in a damp environment
Using a faulty 240Vac power tool with RCD.
There is no directly defined boundary between a safe voltage and a dangerous voltage.
Voltage between 110V are considered safe
Voltages over 440V are especially dangerous.
Any ship’s engineer.
A qualified electrical person.
A qualified electrical person wearing appropriate PPE.
Engine room and accommodation places.
Physical separation from all sources of supply.
Physical separation from all sources of supply and application of safety locks and caution notices to prevent electrical equipment being made live in error.
Disconnection from live conductors by an open isolator.
Non-ionizing radiation source.
Medium Voltage (MV)
Low Voltage (LV)
High Voltage (HV)
Electric wiring executed by approved manufacture?
Product having a special wiring system?
Cannot produce enough energy to ignite a gas (explode)?
An area in which an explosive gas/air mixture is likely to occur in normal operation.
In which an explosive gas/air mixture is continuously present, or present for long periods.
None of the above
During circuit breaker insertion
During circuit breaker removal
During circuit breaker removal or insertion and during switching operations.
Away from the source of power generation.
Equal at all panels.
Close to the source of power generation.
Battery powered devices carried on the person for own use
Equipment connected by a cable through a plug and receptacle to the ships electrical power system.
Any appliance that is hand held or can be moved whilst connected to an electricity supply via a lead and plug is classed as portable.
Both of them may perform this routine.
Electrical Person LV and electrical person MV
A & B
Do not operate the machine, but read the manual before reporting to the head of your department
Seek advice from your superior before attempting to operate it.
As time is money, the trial and error method shall be used.
All non-accommodation areas.
In hazardous areas.
Can be from any Maker supplied through RS Components.
Should be selected from the list approved by the managing office (OTS/332).
Should be from quality manufacturer and expensive.
Permitted under special circumstances provided suitable PPE is worn.
Permitted only if the work is carried out by Electrical Person (MV).
Strictly forbidden in all circumstances.
Meet a legal requirement under the Health and Safety Regulations.
To identify the extent of hazards in the work place and to put control measures to reduce or eliminate the hazard.
A & B