Electrical Safety Testing
Just like other electrical equipment, Electric Vehicles
and their charging cables should be examined and tested regularly
to ensure that they are in a safe condition. So-called Portable
Appliance Testing (PAT) is often required for insurance reasons
and many commercial and industrial sites require evidence of
this testing before equipment can be plugged in. Office and factory
workers will be familiar with the little green stickers attached
to equipment showing that they have passed these kinds of tests.
EVs should be tested at least every
12 months or more frequently when used intensively or in arduous
conditions and ALWAYS after any electrical repair or major body
repair. Regular testing can also reveal any required preventative
maintenance before it becomes a problem - which could otherwise
lead to 'nuisance tripping' of protective RCDs.
In the UK, the normal, annual 'MOT' roadworthiness inspection
for vehicles over 3 years old also applies to most EVs but does
not, as yet, include any electrical tests. We always perform
a PAT test when conducting an MOT but the safety test must also
be carried out regularly on newer vehicles, before they require
Vehicle testing MUST NOT be performed by a conventional
PAT tester since this can damage the vehicle electronics. Read
more about our Testing Services
Charging cables should be visually inspected
before each use. Cables which are separate from the vehicle should
also be electrically tested independently at least every 12 months.
This is the longest period that a cable should be used between
testing and assumes a professionally assembled cable used in
a 'fixed' location that is not subjected to heavy use and is
protected from physical damage, water ingress and other factors
such as extreme weather (including exposure to strong sunlight)
Cables used intensively, outdoors, trailing on the
ground or rattling around in the boot of the vehicle should be
formally visually inspected every week and electrically tested
more regularly, e.g. every 6 months.
Whenever a cable is subjected to a vehicle drive-over, excessive
strain, abrasion, immersion in water or exposure to a contaminent
(e.g. dust) it should be returned to ecodrive
for inspection and testing, even if no visible damage has occured.
Care must be taken to prevent damage to cables from crushing,
cutting and chaffing by avoiding them being shut in vehicle or
building doors, caught in lock mechanisms (e.g. boot lid) or
mechanisms such as folding seats (cables should not be stored
in footwells where the seat mechanisms could pinch the cable)
Any socket outlet to be used for EV recharging should be electrically
inspected before first use and then at regular intervals, at
least every 12 months. Some sockets on some electrical installations
should not be used for recharging EVs: Contact us
Our dedicated Charging Stations
should also be inspected regularly but incorporate self-testing
elements for increased protection and reliability between inspections.
We can carry out a comprehensive PAT test on detachable cables
by post. Consult us about testing vehicles and charging sockets.
We can test vehicles on-site in certain parts of the UK. Contact
us for a quotation.
We can also test other electrical equipment and appliances.
Please contact us on firstname.lastname@example.org or click on