CSA B355:2019 pdf download.Platform lifts and stair lifts for barrier-free access
1.1 CSA B355 specifies minimum requirements for the design, construction, installation, and operation of platform lifts and stair lifts that provide barrier-free access for persons with limited mobility,travelling between fixed points of a building or structure, including a private residence, with a view to safeguarding against risk of accidents associated with the operation of such equipment.
1.2 This Standard addresses requirements for
a) enclosed vertical platform lifts;
b) unenclosed vertical platform lifts;
c) stair lifts;
d) enclosed stair platform lifts; and
e) unenclosed stair platform lifts.
1.3 This Standard provides recommendations for the inspection, testing, and maintenance of platform lifts and stair lifts for barrier-free access (see Clause 11 and Annexes A and B). This Standard also provides non-mandatory guidelines for relocatable lifts (see Annex E).
1.4 This Standard does not apply to elevating devices addressed by ASME A17.1/CSA B44 or to portable equipment.
1.5 This Standard does not address location of, access to, and usage of the lifts specified herein.
Note: These factors might be regulated by the enforcing authority.
1.6 The provisions of this Standard are not intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durbility, and safety to those prescribed by this Standard, provided that there is technical documentation to demonstrate the equivalency of the system, method, or device.
Note: Authorities having jurisdiction may permit modifications to this Standard provided that technical documentation or physical performance verification can assure the safety equivalence of such modifications to the corresponding requirements of this Standard.
Chain一a simplex or duplex transmission chain that, if used as part of a drive system, either transmits rotary motion from one shaft to another or transmits motion directly to the carriage.
Chain sprocket一a wheel having machine-cut teeth specially designed to engage with a chain.
Continuous-pressure floor selective (CPFS)一operation by means of a set of operating devices, located in the carriage and elsewhere, appropriately marked and wired so that, when one of the operating devices is manually maintained in the actuating position, the carriage travels towards and stops at the floor pre-selected by the operating devices.
Continuous-pressure一operation by means of operating devices, located in the carriage and elsewhere, and used to control the movement of the carriage for as long as the operating devices are manually maintained in the actuating position.
Final terminal-stopping device一a terminal electrical switch or similar stopping device that is positively and mechanically operated by the carriage so that it causes the power to be removed from the drive unit, independently of the functioning of the normal terminal landing stopping device, after the carriage has passed a terminal landing.CSA B355 pdf download.