-
1xAPI Spec 16C Addendum 1
$5.40 -
1xAPI Spec 6DSS Errata 2
$4.50 -
1xAS 60099.4:2022
$43.57 -
1xISO 12312-1:2022
$82.35
-
1xGMW17793
$46.20 -
1xAPI Std 614 Datasheets
$30.15
-
1xASTM D7687-23
$28.35
-
1xAASHTO M 204M/M 204-14
$24.30 -
1xIEC 62446-2 Ed. 1.0...
$142.65 -
1xASTM E605/E605M-19
$23.40 -
1xAASHTO M 154-11
$5.40 -
1xAS 62689.1:2022
$32.79
-
1xUL Subject 1740
$74.85 -
1xUL Subject 2201
$74.85
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ULC 561
ULC 561 Installation And Services For Fire Signal Receiving Centres And Systems
standard by Underwriters Laboratories of Canada, 06/01/2020
Full Description
This Standard covers the:A Construction, operation, installation, inspection and tests applicable to fire signal receiving centres for fire protective signalling services utilizing fire signal receiving centre facilities and satellite centres, signal processing centres and bridging centres;
B Construction and operation of a proprietary fire signal receiving centre; and
C Installation, inspection and tests applicable to signal transmitting units and its field device inputs at the protected premises.This Standard does not include the test, inspection, maintenance, installation and service of the building fire alarm system at the protected premises, as required in the Standard for the Installation of Fire Alarm Systems, CAN/ULC-S524; Standard for the Inspection and Testing of Fire Alarm Systems; CAN/ULC-S536; and the Standard for the Verification of Fire Alarm Systems, CAN/ULC-S537.
