PART P - NICEIC

TECHNICALHELPLINE
T RA NS P O RTA BLE BUIL D IN G S
About a year ago, the NICEIC published the Tr a n s p o rtable Building Electrical Installation Certificate and the
Tr a n s p o rtable Building Periodic Inspection Report for certification and reporting for electrical installations in
t r a n s p o rtable buildings. Such buildings represent a difficulty in terms of certification because the building
electrical installations are fabricated in a factory environment and, when completed, shipped to site. Only
p a rt of the process of verification and certification of the installation can therefore be done in the factory,
the remainder having to wait until the transportable building is connected to the site supply. This art i c l e
gives guidance on the appropriate use of each form.
The Transportable Building Electrical Installation
Certificate
This certificate is intended to be issued in connection with the
transportable building’s electrical installation on its completion in
the factory. The box entitled ‘Transportable Building Supply
Parameters’ makes provision to list all the supply characteristics
which the particular installation will tolerate, in terms of nominal
voltage and frequency, number of phases, maximum load,
acceptable system type(s), maximum tolerable earth fault loop
impedance, and maximum tolerable fault current. A copy of this
certificate accompanies the transportable building to site where it
is to be connected to the supply, provided the supply parameters
are within the tolerances stated on the certificate.
Upon connection to the site supply, a ‘normal’ Electrical
Installation Certificate should be used for certification of the
transportable building installation as connected to its new supply.
The Transportable Building Periodic Inspection Report
The Transportable Building Periodic Inspection Report form is
intended to be used for the periodic inspection and testing of a
transportable building itself, for example where it is returned to
the factory, or to the company hiring it out, or to be shipped to a
new location. It is not to be used for the periodic inspection and
testing of a transportable building when connected to its
permanent supply, for which a ‘normal’ Periodic Inspection Report
must be used.
3
7
NICEIC CO N N ECTIONS AUTUMN
20 04