40. Installations are classified as to their type and capacity under Schedule D with respect to the total capacity of stationary engines, in operating condition, to be supervised except if an attestation from the owner or user, countersigned by the chief engineman, if such person has been appointed or if not, by a stationary engineman, states that a stationary engine in such installation never operates at the same time as the others. In case of doubt or litigation, the board of examiners may demand a physical means of ensuring that the stationary engine concerned cannot be in operation at the same time as the rest of the installation.
However, in the case of an installation comprising high-pressure boilers and low-pressure steam boilers, other than of the coiled tube type, the sum of the capacities of both types of installations must be computed in order to establish the classification of the installation determined in Schedule D by using the same values of maximum total capacity applicable to the classification of an installation of the high-pressure boiler type.
Also, in the case of an installation composed of Group A2, B2, A3 or B3 and Group A1 or B1 refrigerating apparatus, the classification of the installation changes to Class A when its total capacity exceeds 900 kW or when the total capacity of the Group A2, B2, A3 or B3 apparatus exceeds 250 kW.
R.R.Q., 1981, c. M-6, r. 1, s. 40; O.C. 1809-89, s. 3; O.C. 1679-94, s. 1.