3. Reliable power sources
Depending on the type of project, the cost of interrupting the energy supply can be very high.
It is therefore necessary to take into account the reliability of the supply network. If this does not meet the required level, an alternative source(s) must be implemented.
In some cases, it's more economical to set up a generator power plant than to rely on an unreliable and sometimes expensive overhead HV line.
The distribution network operator generally provides statistical information on the quality of its network. Failing this, the following annual values can be assumed:
average number of voltage dips on an overhead MV network: 100 to 150 ;
annual downtime on an urban MV network: 1 h ;
cumulative duration...
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Reliable power sources
Prescription for safety
Websites
Energy suppliers http://www.energie-info.fr
Organisme professionnel de prévention du bâtiment et des travaux publics (OPPBTP) (Professional organization for building and public works prevention) http://www.oppbtp.com/
Standards and norms
- Postes de livraison alimentés par un réseau de distribution publique HTA (jusqu'à 33 kV) - NF C13-100 - 04-15
- High-voltage electrical installations – Supplementary rules for production sites and industrial, tertiary and agricultural installations (classification index: C13-200) - NF C13-200 - 09-09
- Low-voltage electrical installations – Title 7: Rules for special installations and locations, updated June...
Regulations
Guide UTE C 15-401 – January 2004 – Low-voltage electrical installations – Practical guide – Generators – Installation rules
Decree no. 88-1056 of November 14, 1988 implementing the provisions of the book II of the French Labour Code (title III Hygiene, safety and working conditions) concerning the protection of workers in establishments...
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