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Avis d'intention

Single and Multiple Station Heat Alarms

The proposed first edition of CAN/ULC-S589 is a binational standard that will cover requirements for heat-actuated, single and multiple station heat alarms intended for indoor installation in accordance with the following: In...
Avis d'intention

Norme sur les avertisseurs de fumée

Les normes CAN / ULC-S531 et ANSI / UL 217 sont fusionnées en une seule norme binationale pouvant être utilisée pour le Canada et les États-Unis. Bien que les normes aient des exigences presque identiques, certaines sont...
Avis d'intention

Commutateurs de transfert de moyenne tension

These requirements cover automatic, non-automatic and manual transfer switches operating at voltages of 1000 V ac and higher, and intended for use in ordinary locations to provide for power as follows, a) Automatic transfer...
Avis d'intention

Les commutateurs de transfert moyenne tension

1 Scope 1.1 These requirements cover automatic, non-automatic, and manual transfer switches, operating at voltages of 1000 V ac and higher, and intended for use in ordinary locations to provide for power as follows: a)...