CSA C282:19 Emergency Electrical Power Supply for Buildings Available for Purchase

Nov 19, 2020

CSA C282:19, Emergency electrical power supply for buildings is available to purchase in English and French as hardcopy, pdf and subscription. CSA C282:19 specifies requirements for the design, installation, operation, maintenance, and testing of emergency generators and associated equipment for providing an emergency electrical power supply to electrical loads.

Significant changes in this seventh edition include clarified requirements for the components of the emergency electrical power supply system, sizing of maximum site design load and update to accepted fuel type for Class C health care facilities.

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The main changes from the previous edition are as follows:

a) clarified requirements for the components of the emergency electrical power supply system (Clause 5.1);

b) clarified the sizing of maximum site design load (Clause 6.1.1.2);

c) clarified requirements for load testing to prevent potential for overloading the system (Clause 6.15.2);

d) revised to accepted fuel type for Class C health care facilities (Clause 7.3.3);

e) revised to accepted diesel fuel type (Clause 7.3.5);

f) revised fuel storage requirements to harmonize with CSA B139 Code (Clauses 7.3.8 and 7.3.9);

g) clarified requirements for dedicated fuel line for propane generators to align with natural gas requirements (Clause 7.3.8.5); 

h) added requirements for on-site fuel storage for propane (Clauses 7.3.8.5 and 7.3.8.6);

i) clarified requirements for exclusive use of fuel (revised Clause 7.3.10 and new Clause 7.3.12);

j) clarified control panel requirements (Clauses 7.4.1 and B.20);

k) clarified requirements for overcurrent devices and disconnecting means revised (Clause 8.7);

l) updated requirements for generator controls, including multiple generator systems (Clause 8.8);

m) revised requirements for transfer switches in multiple building applications (Clause 9.1.2);

n) added requirements for parallel systems during operational tests (Clauses 10.2.3 and B.24);

o) clarified requirements for full load test for health care facilities (Clause 10.3.1.2);

p) added requirements for generator set management controls in paralleled systems (Clauses 10.3.5 and B.25);

q) added requirements for load management controls in paralleled systems (Clauses 10.3.6 and B.26)

r) revised testing requirements for transfer switches in health care facilities (Clauses 11.4.2 and Table 3);

s) revised provisions for safety indicators and shutdowns (Table 1);

t) revised battery testing requirements (Tables 2 and 3);

u) revised load requirements for annual inspection to align with NFPA 70B;

v) added infrared thermal imaging requirements for annual test (Table 5);

w) added of explanation of problems associated with cold weather operation (Clause B.8);

x) added of explanation of problems associated with diesel fuels (Clause B.13);

y) additional information on restriction on the amount of fuel that can be stored in a generator room to comply with the CSA B139 Code (Clause B.15); and

z) clarified requirements for coordination of circuit breakers (Clause B.21).

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.