N.Y.C. Admin. Code § BC K2: Chapter K2: Modifications to ASME B20.1/2015, Safety Standard for Conveyors and Related Equipment

K201.1 General.

As referenced in Section 3001.2 of this code, the provisions of ASME B20.1-2015 shall be modified in accordance with this appendix. The section numbers correlate to those in the referenced ASME standard. Refer to the rules of the department for any subsequent additions, modifications or deletions that may have been made to this standard in accordance with Section 28-103.19 of the Administrative Code.

4 DEFINITIONS

Delete and revise the definition "Conveyor, vertical reciprocating" in Section 4 to read as follows:

CONVEYOR, VERTICAL RECIPROCATING. A permanent reciprocating power or gravity-actuated unit (not designed to carry passengers or an operator) that receives objects on a carrier and transmits these objects vertically between two or more levels.

6 SPECIFIC SAFETY STANDARDS SECTION 6.1

BELT CONVEYORS: FIXED IN PLACE

Delete Section 6.1 in its entirety.

SECTION 6.2 GUARDING OF BUCKET CONVEYORS

Delete Section 6.2 in its entirety.

SECTION 6.3 SAFETY CONSIDERATIONS FOR CHAIN CONVEYORS

Delete Section 6.3 in its entirety.

SECTION 6.4 EN MASSE CONVEYORS

Delete Section 6.4 in its entirety.

SECTION 6.5 FLIGHT AND APRON CONVEYORS: BULK MATERIAL

Delete Section 6.5 in its entirety.

SECTION 6.6 INCLINED RECIPROCATING CONVEYORS

Delete Section 6.6 in its entirety.

SECTION 6.7 LIVE ROLLER CONVEYORS: BELT OR CHAIN DRIVEN

Delete Section 6.7 in its entirety.

SECTION 6.8 MOBILE CONVEYORS

Delete Section 6.8 in its entirety.

SECTION 6.9 SAFETY CONSIDERATIONS FOR PORTABLE CONVEYORS, EXTENDABLE BELT CONVEYORS, AND CAR UNLOADERS

Delete Section 6.9 in its entirety.

SECTION 6.10 SAFETY CONSIDERATIONS FOR PUSHER BAR CONVEYORS

Delete Section 6.10 in its entirety.

SECTION 6.11 ROLLER AND WHEEL CONVEYORS

Delete Section 6.11 in its entirety.

SECTION 6.12 SAFETY CONSIDERATIONS FOR SCREW CONVEYORS

Delete Section 6.12 in its entirety.

SECTION 6.13 SAFETY CONSIDERATIONS FOR SHUTTLE CONVEYERS, BELT TRIPPERS, AND TRANSFER CARS

Delete Section 6.13 in its entirety.

SECTION 6.14 SKIP HOISTS: BULK MATERIAL

Delete Section 6.14 in its entirety.

SECTION 6.15 SLAT CONVEYORS AND ROLLER SLAT CONVEYORS

Delete Section 6.15 in its entirety.

SECTION 6.16 SUSPENDED VERTICAL TRAY CONVEYORS

Delete Section 6.16 in its entirety.

SECTION 6.17 TOW CONVEYORS

Delete and revise the title of Section 6.17 to read as follows:

SECTION 6.17 TOW CONVEYORS (SHOPPING CAR CONVEYORS)

6.17.2 Tow Conveyors: Public use intended.

Delete and revise Section 6.17.2.2 and add new Section 6.17.2.3 to Section 6.17.2 read as follows:

6.17.2.2 Guarding. Where a parted chain, cable, belt, tow pin, or other linkage would permit a runaway condition on an incline or decline, anti-runway/backstop devices shall be provided.

6.17.2.3 Periodic inspections and tests. Tow conveyors shall be subject to periodic inspections and tests including acceptance, category 1 and category 5.

SECTION 6.18 TROLLEY CONVEYORS AND POWER AND FREE CONVEYORS

Delete Section 6.18 in its entirety.

SECTION 6.19 VERTICAL ARTICULATED CONVEYORS

Delete Section 6.19 in its entirety.

SECTION 6.20 VERTICAL CHAIN-OPPOSED SHELF TYPE CONVEYORS

Delete Section 6.20 in its entirety.

SECTION 6.21 VERTICAL RECIPROCATING CONVEYORS

6.21.1 Safety considerations.

Add new Subsections (d), (e), (f), (g), (h), (i), (j) and (k) to Section 6.21.1 to read as follows:

(d) Travel distance shall be limited to less than 22 860 mm (75 ft) with a maximum of four landings served.

(e) Where fire-resistant construction is required by the Building Code, conveyor(s) shall be enclosed in a fire-rated hoistway.

(f) Access at landings shall be a restricted area for authorized personnel with no public access.

(g) Where there is accessible space under the hoistway, the conveyor and counterweight shall be equipped with a safety device designed to stop and hold the conveyor and counterweight independent of the hoisting or driving mechanism and shall comply with A17.1 rules 2.6 and 2.1.2.3.

(h) The operating device shall not be located inside the conveyor enclosure and must be external to the hoistway at each landing served.

(i) The system shall incorporate a position indicator at each floor landing to register the location of the conveyor.

(j) The rated-load capacity shall not be less than 239 kg/m

2

(49 lbs. per sq ft).

(k) The rated speed shall not exceed 406 mm/sec (80 FPM).

6.21.2 Guarding.

6.21.2 Delete and revise Subsections (b), (c) and (d) of Section 6.21.2 to read as follows:

(b) The conveyor housing shall be equipped with doors or an equivalent means at each manual landing and unloading station, arranged so that they can be opened only when the carrier is present and stopped at that level and such that the carrier cannot be actuated until they are closed. This requirement is typically satisfied by use of a mechanical locking device, which is actuated by the motion of the carrier, and an electrical switch indicating that the door is closed and locked.

(1) The unlocking mechanism must be mounted on the carrier.

(2) This requirement shall be satisfied by the use of an interlock as required by ASME A17.1, Section 2.12.2.

(c) Vertical reciprocating conveyors designed to automatically receive and discharge material shall have interlocked doors as in (b) or, as an alternative, be guarded by a suitable enclosure extending from the path of the moving carrier.

(d) Where the application requires that personnel walk onto the carrier to load or unload material, the carriers shall be provided with a conveyor enclosure securely fastened to the conveyor platform. The enclosure walls shall be of solid, grille or perforated construction; and shall be of such strength and support that when subjected to a leaning or falling rated load on the conveyor, the enclosure walls will not deflect or deform in a way that reduces running clearances to less than 13 mm (0.5 in.). Enclosure entrance(s) shall be provided with solid doors or gates; and shall guard the full width opening with a minimum height of 2030 mm (80 in.). Grille or perforated portions of conveyor enclosures and entrance gates shall reject a ball 38 mm (1.5 in.) in diameter.

Add new Section 6.21.3 to read as follows:

6.21.3 Periodic testing.

(a) All conveyors shall be inspected and tested as per Table N1 of ASME A17.1 as modified by Chapter K1 of this appendix.

(b) All safety devices shall be tested on all tests. A static full load shall be performed every five years to ensure that the conveyor holds the load.

SECTION 6.22 MATERIAL ENCAPSULATING CONVEYORS

Delete Section 6.22 in its entirety.

Delete and revise the title of "Mandatory Appendix I" to read as follows:

NON-MANDATORY APPENDIX I SPECIFICATIONS FOR DESIGN, INSTALLATION COMMISSIONING, AND PERIODIC INSPECTION OF VERTICAL RECIPROCATING CONVEYORS