The low voltage electrical installation calculation program.
TR-CIEL is useful in every aspect of an electric installation, from the early design up to the maintenance, through the production and inspection. TR-CIEL is also very much appreciated in technical education.

TR-CIEL is a software package that enables the calculation of low voltage electrical installations, following the specifications of the C15-500 guide as well as complying with the various French and international standards (NF C 15-100, RGIE, IEC364, HD 384, CEI 64, ...).

TR-CIEL calculates conductors' cross-sections, short-circuit currents, voltage falls and the measurement of sources and protections. It can manage complex and multiple sources for installations of all size, it includes power balance calculation and a help for high voltage electrical networks calculations.

The graphical interface of TR-CIEL was specifically and ergonomically designed to deal easily and quickly with any type of installation whatever its complexity.

TR-CIEL has a publishing module for the printing and the export of the installation calculation notes under different layouts, and an interface to AutoCAD ® enabling export of installation diagram to DWG drawing format.

TR-CIEL's main assets remain in its speed and user-friendliness, its power of calculation, its capacity to simulate and its educational character, enabling to deal in a new way with the variety and the complexity of standards and uses in this domain.

The publication, in May, 1997, of the UTE C 15-500 guide (report CENELEC R064-003) introduced the harmonization of rules with respect to the standards IEC. Based on this guide, through the installations calculations, TR-CIEL complies with the various standards and\or the national regulations (NF C 15-100 in France, RGIE in Belgium). TR-CIEL obtained the technical compliance UTE 15L-604 for France and technical conformity CEBEC for Belgium (License 57478101).

In France, the standard imposes numerous constraints: since May, 1998, only softwares based on the guide UTE C 15-500 can be commercialized and since May, 1999, new electrical installations must be designed with a software compliant with the UTE C15 500 guide. Under the order of October 10th, 2000 the manager site has to yield to the control authority the single-line drawing of the installations along with the calculation notes.

TR-CIEL is a software package that enables to calculate or to verify the measurement of an electric installation with respect to regulations imposed by the General Regulation on the Electrical Installations - R.G.I.E and the technical compliance CEBEC 57478101

A software package of calculation remains a tool to measure and/or to check but cannot lead the user to conclude that the practical implementation of the installation is or will be in accordance with the RGIE, without a in-depth exam on site by a body of approved control.