Retroactive Interlock Requirements for Freight Platform Lifts and Material Lifts

THE TECHNICAL STANDARDS AND SAFETY ACT, 2000, S.O. 2000, c. 16 (the “Act”)
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ONTARIO REGULATION 209/01 (Elevating Devices) made under the Act
Retroactive Interlock Requirements for Freight Platform Lifts and Material Lifts
Applicable to:
All Owners of Freight Platform Lifts and Material Lifts
All Elevator Contractors
The Director, Elevating Devices Regulation (O.Reg. 209/01) pursuant to his authority under section 14 of the Technical Standards & Safety Act, 2000 hereby orders the following:
1. ORDER to Owners
1.1. All type ‘A’ and type ‘B’ Freight Platform Lifts and type ‘B’ Material lifts utilizing hoistway door mechanical lock and contacts shall have their mechanical lock and contacts upgraded to interlocks by May 1, 2014.
1.2. The upgraded interlocks shall conform to CSA B44-2010 section 7.4.14 except as modified by (a) and (b) below.
a) Compliance with 2.12.3 is not permitted.
b) Compliance with CSA B44-1985 section 11.4 is permitted in place of CSA B44-2010 section 8.3.3.
1.3. New equipment installed in compliance with this safety order shall comply with CSA B44-2010 clauses and (b). When a single ground or a failure as specified in or (b) occurs, the car shall not be permitted to restart.
1.4. For the purposes of this safety order the terms “freight platform lift – type B” and “freight platform lift – type A” shall mean the same as “Material Lift – type B” used in CSA B44-2010.
2.1. All work must be performed by a TSSA registered contractor.
2.2. Work carried out in order to bring a device into compliance with this order is considered an alteration and, as such, a Design Submission with related electrical schematics must be submitted by a registered contractor.
2.3. The installation of interlocks, door zone switch(es) and/or any relays to provide redundancy as required by 1.2 and 1.3 of this order is deemed to be a Minor A type alteration. Any other alteration work performed at the same time shall comply with Director’s Order 226/07 and/or the Code Adoption Document applicable at the time of design submission. Note: Changing the controller as a means to comply with this order would be deemed a Major alteration.
2.4. The contractor who completed the alteration shall arrange for an inspection to be carried out as required by O.Reg. 209/01.
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3. Background
3.1. Hoistway door mechanical lock and contacts were permitted on all door types for both type ‘A’ and type ‘B’ Freight Platform Lifts installed to the B44S2-98 and earlier codes. Lock and contacts were also permitted on some type ‘B’ Material Lifts with vertical sliding doors installed to the B44-2000 and later codes.
3.2. There have been several recent incidents where out of adjustment mechanical locks have allowed hoistway doors to be opened without the car present at the landing. In one of these cases a person stepped into and fell down the unprotected hoistway.
3.3. The requirements for interlocks in the B44-2010 code ensure that the car cannot move more than 75mm (3 in.) beyond the landing without first ensuring the hall door is mechanically (physically) locked – as confirmed by a made up electrical contact. These new requirements also permit designs that do not require retiring cams and hence permit solutions that are similar to those employed on B355 devices.
3.4. This safety order includes permission for the interlock to be tested in accordance with the CSA B44-1985 in order to allow existing interlocks without the lock contact connected to be rewired to comply with this order.
3.5. Contractors who maintain these devices that utilize mechanical locks and electric contacts are reminded to pay close attention to the adjustment of the lock and contact to ensure that the electrical contact does not make up if the mechanical lock has not engaged.

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