220.127.116.11.1 External Inspection and Tests
(a) General Fire Protection Requirements (Items 7.1 and 9.1)
(b) Geometry (Items 7.2 and 9.2)
(c) Handrails (Items 7.3 and 9.3)
(5) height (18.104.22.168.5)
(7) the person or firm installing the equipment shall provide a written checkout procedure and demonstrate that the handrail speed does not change when a retarding force, up to the maximum required by the Code, is applied opposite to the direction of travel (22.214.171.124.1 or 126.96.36.199.1)
(d) Entrance and Egress (Items 7.4 and 9.4)
(h) Deck Barricade (Items 7.8 and 9.8)
(1) antislide devices (188.8.131.52.10)
(i) Steps, Step Upthrust Device, and Treadway (Items 7.9 and 9.9)
(-a) material and type (184.108.40.206.1)
(-b) dimensions (220.127.116.11.2)
(-c) clearance between steps (18.104.22.168.4)
(-d) slotting of treads (22.214.171.124.5)
(-e) slotting of risers (126.96.36.199.3)
(-f) design load (188.8.131.52.4)
(-h) step upthrust device (184.108.40.206.9)
(-a) belt type (220.127.116.11)
(-b) pallet type (18.104.22.168)
(j) Operating and Safety Devices (Items 7.10 and 9.10)
(4) Tandem Operation (22.214.171.124 or 126.96.36.199). When interlocked tandem operation is required, verify that an escalator or moving walk carrying passengers to an intermediate landing will stop when the escalator or moving walk carrying passengers away from that landing stops. Also, verify that the units are interlocked to run in the same direction.
(n) Balustrades (Items 7.15 and 9.15)
(p) Skirt Panels (Items 7.17 and 9.17)
(3) deflection [188.8.131.52.6(b) or 184.108.40.206.6(c)], The person or firm installing the equipment shall provide engineering test documentation [see 8.3(b)(7) and 8.3.15] in the on-site documentation (see 220.127.116.11.2) to verify conformance with the deflection requirements of not more than 1.6 mm (0.0625 in.) under a force of 667 N (150 lb).
(5) Clearance Between Step and Skirt (Loaded Gap)
(-a) Loaded gap measurements shall be taken at intervals not exceeding 300 mm (12 in.) in the transition region (18.104.22.168.5) and before the steps are fully extended. These measurements shall be made independently on each side of the escalator.
(-b) The applied load shall not deviate from 110 N (25 lbf) (22.214.171.124.5) by more than ±11 N (2.5 lbf). The load shall be distributed over a round or square area no less than 1940 mm2 (3 in.2) and no more than 3 870 mm2 (6 in.2).
(-c) For the loaded gap measurements, the center of the applied load shall be between 25 mm (1 in.) and 100 mm (4 in.) below the nose line of the steps. The center of the applied load shall be not more than 250 mm (10 in.) from the nose of the step. See Figure 126.96.36.199.19.
(s) Verification of Documentation for Type Tests, Certification, and Markings
(t) Step/Skirt Performance Index
(1) The escalator skirt shall not be cleaned, lubricated, or otherwise modified in preparation for testing. The escalator instantaneous step/skirt index measurements [188.8.131.52.9(a)] shall be recorded at intervals no larger than 150 mm (6 in.) from each side of two distinct steps along the inclined portion of the escalator, where the steps are fully extended. Test steps shall be separated by a minimum of eight steps.
(2) A load of 110 N (25 lbf) shall be laterally applied from the step to the adjacent skirt panel. The applied load shall not deviate from 110 N (25 lbf) by more than ±11 N (±2.5 lbf). The load shall be distributed over a round or square area no less than 1 940 mm2 (3 in.2) and no more than 3 870 mm2 (6 in.2).
(3) No vertical load exceeding 220 N (50 lbf) shall be applied to the test step and adjacent steps.
(4) The coefficient of friction shall be measured with the test specimen conforming to the requirements of 184.108.40.206.9(b) sliding in the direction of the step motion under a 110 N (25 lbf) normal force at the operating speed of the escalator and shall be measured with devices having sensitivity better than ±2.2 N (±0.5 lbf). The direction of step motion shall be the direction of normal operation. If the escalator is operated in both directions, the down direction shall be used for the test.
(5) For both the coefficient of friction measurement and the loaded gap measurements, the center of the applied load shall be between 25 mm (1 in.) and 100 mm (4 in.) below the nose line of the steps. The center of the applied load shall be not more than 250 mm (10 in.) from the nose of the step. See Figure 220.127.116.11.19.
(6) Verify that the step/skirt performance index conforms to the requirements in 18.104.22.168.9 [Item 7.17.2(a)].
(u) Inspection Control Devices. Inspection control devices shall be tested and inspected to determine conformance with the requirements of 22.214.171.124.2 for escalators and 126.96.36.199.2 for moving walks (Items 8.17 and 10.16).