Portable Appliance Testing

The IEE Code of Practice suggests the frequency of inspection and testing should take into account device usage as well as device type:

  • Environment: e.g. equipment used in industry is probably more liable to damage than similar equipment used in an office
  • Type: e.g. hand-held equipment is more likely to be damaged than fixed equipment
  • Construction: e.g. Class 1 equipment is dependent on an earth connection (which can fail), Class 2 is not
  • Users: e.g. if users are fully trained on equipment and can spot and report damage then testing can be less frequent.

Please use the table below as a guide:

Type of Premises Type of Equipment Note (1) User Checks Note (2) Class 1 Class 2
Formal Visual Inspection Note (3) Combined Inspection And Testing Note (5) Formal Visual Inspection Note (3) Combined Inspection And Testing Note (5)
Construction Sites 110 V Equipment S
IT
M#
P#
H#
None
None
Weekly
Weekly
Weekly
1 Month
1 Month
1 Month
1 Month
1 Month
3 Months
3 Months
3 Months
3 Months
3 Months
1 Month
1 Month
1 Month
1 Month
1 Month
3 Months
3 Months
3 Months
3 Months
3 Months
Industrial Including Commercial Kitchens S
IT
M
P
H
Weekly
Weekly
Before Use
Before Use
Before Use
None
None 
1 Month
1 Month
1 Month
12 Months
12 Months
12 Months
6 Months
6 Months
None
None
3 Month
3 Month
3 Month
12 Months
12 Months
12 Months
6 Months
6 Months
Equipment Used by the Public S
IT
M
P
H
Note (6) +
Note (6) +
Note (6) +
Note (6) +
Note (6) +
Monthly
Monthly
Weekly
Weekly
Weekly
12 Months
12 Months
6 Months
6 Months
6 Months
3 Months
3 Months
1 Month
1 Month
1 Month
12 Months
12 Months
12 Months
12 Months
12 Months
Schools S
IT
M
P
H
Weekly +
Weekly +
Weekly +
Weekly +
Before Use +
None
None
4 Months
4 Months
4 Months
12 Months
12 Months
12 Months
12 Months
12 Months
12 Months
12 Months
4 Months
4 Months
4 Months
48 Months
48 Months
48 Months
48 Months
48 Months
Hotels S
IT
M
P
H
None
None
Weekly
Weekly
Before Use
24 Months
24 Months
12 Months
12 Months
6 Months
48 Months
48 Months
24 Months
24 Months
12 Months
24 Months
24 Months
24 Months
24 Months
12 Months
48 Months
48 Months
24 Months
24 Months
24 Months
Offices and Shops S
IT
M
P
H
None
None
Weekly
Weekly
Before Use
24 Months
24 Months
12 Months
12 Months
6 Months
48 Months
48 Months
24 Months
24 Months
12 Months
24 Months
24 Months
12 Months
12 Months
12 Months
48 Months
48 Months
24 Months
24 Months
24 Months
1 S = Stationary Equipment
IT = Information Technology Equipment
M = Movable Equipment
P = Portable Equipment
H = Hand Held Equipment
2 User checks are not recorded unless a fault is found.
3 The formal visual inspection may form part of combined inspection and tests when they coincide, and must be recorded
4 If the class of equipment is not known it must be tested as a Class 1
5 The results of combined inspection and tests are recorded
6 For some equipment such as children’s rides a daily check may be necessary
+ By supervisor/teacher/member of staff
# 110V earthed centre tapped supply. 230V portable or hand-held equipment must be supplied via a 30mA RCD and inspections and tests carried out more frequently

. Portable Appliance Testing
. Certification

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