1.5 Electrical safety
Electrical equipment is a significant cause of
accidental fires in factories and warehouses.
The main causes are:
• overheating cables and equipment, e.g. due
to overloading circuits, bunched or coiled
cables or impaired cooling fans;
• incorrect installation or use of equipment;
• little or no maintenance and testing of
equipment;
• damaged or inadequate insulation on
cables or wiring;
• combustible materials being placed too
close to electrical equipment, which may
give off heat even when operating
normally, or may become hot due to a fault;
• arcing or sparking by electrical equipment;
• embrittlement and cracking of cable
sheathing in cold environments;
• bunched cables passing through insulation
which can generate excessive heat; and
• impaired cooling fans.
All electrical equipment should be installed and
maintained in a safe manner by a competent
person. If portable electrical equipment is
used, including items brought into a workplace
by staff, then your fire risk assessment should
ensure that it is visually inspected and undergoes
portable appliance testing (‘PAT’) at intervals
suitable for the type of equipment and its
frequency of use (refer to HSE guidance10). If
you have any doubt about the safety of your
electrical installation then you should consult
a competent electrician.
Issues to consider include:
• overloading of equipment;
• correct fuse ratings;
• PAT testing and testing of the fixed
installation;
• protection against overloading of
installation;
• protection against short circuit;
• insulation, earthing and electrical isolation
requirements;
• frequency of electrical inspection and test;
1.5 Electrical safety
Electrical equipment is a significant cause of
accidental fires in factories and warehouses.
The main causes are:
• overheating cables and equipment, e.g. due
to overloading circuits, bunched or coiled
cables or impaired cooling fans;
• incorrect installation or use of equipment;
• little or no maintenance and testing of
equipment;
• damaged or inadequate insulation on
cables or wiring;
• combustible materials being placed too
close to electrical equipment, which may
give off heat even when operating
normally, or may become hot due to a fault;
• arcing or sparking by electrical equipment;
• embrittlement and cracking of cable
sheathing in cold environments;
• bunched cables passing through insulation
which can generate excessive heat; and
• impaired cooling fans.
All electrical equipment should be installed and
maintained in a safe manner by a competent
person. If portable electrical equipment is
used, including items brought into a workplace
by staff, then your fire risk assessment should
ensure that it is visually inspected and undergoes
portable appliance testing (‘PAT’) at intervals
suitable for the type of equipment and its
frequency of use (refer to HSE guidance10). If
you have any doubt about the safety of your
electrical installation then you should consult
a competent electrician.
Issues to consider include:
• overloading of equipment;
• correct fuse ratings;
• PAT testing and testing of the fixed
installation;
• protection against overloading of
installation;
• protection against short circuit;
• insulation, earthing and electrical isolation
requirements;
• frequency of electrical inspection and test;
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