In November 2012 the IET launched
Edition 4 of the “Code of Practice for In-service Inspection and Testing of
Electrical Equipment”. This introduced a number of significant changes to the
recommendations on how Portable Appliance Testing is carried out.
The scope of this handbook has always
been wider than the IET Code of Practice. However to keep our readers up to
date with current industry thinking, we have decided to produce this insert to
highlight these new recommendations.
This is a
summary of the major changes introduced in Edition 4 of the Code of Practice
·
Frequency of testing – There is now more emphasis on basing this
on a risk assessment. It is the duty holder’s responsibility to work out the
frequency of testing.
·
An additional category of fixed equipment has also been added.
·
Labelling - The next test date should NOT be on the label.
·
Testing Microwaves for leakage- This is no longer considered to be
within the scope of PAT Testing.
·
Section on production testing - This has been removed.
·
New and Hired equipment - There is new advice on this.
·
Second Hand equipment - There
is new advice on this.
This insert provides
additional information on these.
Frequency of testing
There have
been some minor changes to this. The new chart is reproduced at the end of this
insert. This outlines the initial frequency of inspection and testing. Our advice
in the handbook has always been to tailor this with experience i.e. test more
frequently if a lot of appliances fail and test less frequently if most pass.
Fixed Equipment
This refers
to appliances such as hand dryers and bathroom heaters which are connected by
the use of a flexible cable to a fused mains spur. There is additional
information on how to handle the inspection and testing of fixed appliances. If
testing of these is required then it has to be carried out by a competent
person.
In most
instances, the main risk is damage to the cable which can be spotted by
inspection. Looking through the Frequency of Testing chart, in low risk
environments, fixed appliances only need to be tested every 5 years.
The most
convenient way to do this is to get this done when the fixed installation is
inspected by a qualified electrician.
Labelling
Edition 4 of the Code of Practice
recommends that “the date for re-testing should not be marked on the label”.
With more emphasis on making the frequency of testing based on a risk
assessment, the Code of Practice recommends that the next test date should be
noted by the duty holder in the Equipment test record.
In our view this recommendation is
impractical, as the label serves a very useful purpose. We would advise our
users to ignore this and carry on labelling appliances as before.
Testing Microwave Ovens
Edition 4 of the Code of Practice does
not refer to the testing of Microwaves for leakage as this is now considered to
be out of its scope. However the information in the handbook is invaluable to
many organisations reselling used microwave ovens.
Hired Equipment
All electrical appliances on
site, even hired equipment, must be maintained. For example, photo copiers,
stage lighting equipment or power tools that are hired for short or long
periods must be inspected and tested just like any other equipment that is on
the premises.
New Equipment
There is no need to carry out
inspection and testing on new appliances. It is advisable to carry out a user
check to make sure that the appliance has not been damaged during delivery. The
details of the new appliance have to be entered into the Equipment Register
along with the proposed frequency of maintenance.
Second
Hand Equipment
The IET Code of Practice has
information relating to reselling second hand equipment. However this advice merely
directs the reader to different websites. Most readers will find the
information contained in the handbook to be more useful.
Recommended initial frequency of inspection and testing
Class I
|
|
Class II
|
||||||
Environment
|
Type
|
FVI
|
FVI & test
|
|
FVI
|
FVI & test
|
||
Construction sites
|
S
|
1 month
|
3 months
|
1 month
|
3 months
|
|||
IT
|
N/A
|
N/A
|
N/A
|
N/A
|
||||
M
|
1 month
|
3 months
|
1 month
|
3 months
|
||||
P
|
1 month
|
3 months
|
1 month
|
3 months
|
||||
H
|
1 month
|
3 months
|
1 month
|
3 months
|
||||
Industrial & Commercial Kitchens
|
S
|
none
|
24 months
|
none
|
24 months
|
|||
IT
|
none
|
24 months
|
none
|
24 months
|
||||
F
|
12 months
|
24 months
|
12 months
|
48 months
|
||||
M
|
6 months
|
12 months
|
6 months
|
24 months
|
||||
P
|
6 months
|
12 months
|
6 months
|
12 months
|
||||
H
|
6 months
|
12 months
|
6 months
|
12 months
|
||||
Equipment used by the public
|
S
|
monthly
|
12 months
|
12 months
|
24 months
|
|||
IT
|
monthly
|
12 months
|
12 months
|
24 months
|
||||
F
|
12 months
|
36 months
|
12 months
|
24 months
|
||||
M
|
weekly
|
6 months
|
6 months
|
12 months
|
||||
P
|
weekly
|
6 months
|
6 months
|
12 months
|
||||
H
|
weekly
|
6 months
|
6 months
|
12 months
|
Class I
|
|
Class II
|
||||||
Environment
|
Type
|
FVI
|
FVI & test
|
|
FVI
|
FVI & test
|
||
Schools
|
S
|
none
|
12 months
|
12 months
|
48 months
|
|||
IT
|
none
|
12 months
|
12 months
|
48 months
|
||||
F
|
12 months
|
36 months
|
12 months
|
48 months
|
||||
M
|
6 months
|
12 months
|
12 months
|
48 months
|
||||
P
|
6 months
|
12 months
|
12 months
|
48 months
|
||||
H
|
6 months
|
12 months
|
12 months
|
48 months
|
||||
Hotels
|
S
|
24 months
|
60 months
|
24 months
|
none
|
|||
IT
|
24 months
|
60 months
|
24 months
|
none
|
||||
F
|
24 months
|
48 months
|
24 months
|
none
|
||||
M
|
12 months
|
24 months
|
24 months
|
none
|
||||
P
|
12 months
|
24 months
|
24 months
|
none
|
||||
H
|
12 months
|
24 months
|
12 months
|
none
|
||||
Offices & shops
|
S
|
24 months
|
60 months
|
24 months
|
none
|
|||
IT
|
24 months
|
60 months
|
24 months
|
none
|
||||
F
|
24 months
|
48 months
|
24 months
|
none
|
||||
M
|
12 months
|
24 months
|
24 months
|
none
|
||||
P
|
12 months
|
24 months
|
24 months
|
none
|
||||
H
|
12 months
|
24 months
|
12 months
|
none
|
||||
These are guidelines to assist with the risk assessment
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