The pit equipment, beams, floor, and their supports shall be designed and constructed to meet the applicable building code requirements and to withstand the following loads in the manner in which they occur:
(b) where a plunger gripper, or car, or counterweight safety is furnished, the part of the load transmitted by the application of such gripper(s) or safety(s)
(c) loads imposed by the hydraulic jack
(1) to the cylinder during normal operation
(d) hoist rope up-pull, where applicable, for indirect roped-hydraulic elevators
The location and guarding of counterweights, where provided, shall conform to Section 2.3.
(a) any equipment on the car within 300 mm (12 in.) horizontally from any side of the car platform
(b) any equipment located on or traveling with the car located within 300 mm (12 in.) horizontally from either side of the car frame centerline parallel to the guide rails
(c) any equipment mounted in or on the pit floor located within 300 mm (12 in.) horizontally from either side of the car frame centerline parallel to the guide rails
(a) a horizontal area 600 mm × 1 200 mm (24 in. × 47 in.), with a height of 600 mm (24 in.)
(b) a horizontal area 450 mm × 900 mm (18 in. × 35 in.), with a height of 1 070 mm (42 in.)
(a) not less than 75 mm (3 in.) for operating speed(s) in the down direction up to 0.50 m/s (100 ft/min)
(b) increased from 75 mm (3 in.) to 150 mm (6 in.) in proportion to the increase in operating speed(s) in the down direction from 0.50 m/s (100 ft/min) to 1 m/s (200 ft/min)
(c) a minimum of 150 mm (6 in.) for operating speed(s) in the down direction exceeding 1 m/s (200 ft/min)
(a) not less than 75 mm (3 in.) for rated speeds up to 0.50 m/s (100 ft/min)
(b) increased from 75 mm (3 in.) to 150 mm (6 in.) in proportion to the increase in rated speed from 0.50 m/s (100 ft/min) to 1 m/s (200 ft/min)
(c) a minimum of 150 mm (6 in.) for rated speeds exceeding 1 m/s (200 ft/min)
Neither the top nor the bottom runby of the car shall be more than 600 mm (24 in.).
(a) the bottom car runby
(b) the stroke of the car buffers used
(c) 150 mm (6 in.)
(b) 150 mm (6 in.)
Equipment on top of the car shall conform to the requirements in 2.4.9.
When the car has reached its maximum upward movement, a vertical clearance of 100 mm (4 in.) shall be provided from a hydraulic jack attached to the car and the jacks' attachment means to the horizontal plane described by the lowest part of the overhead structure or other obstruction adjacent to the car enclosure top within the vertical projection of the hydraulic jack and its attachment means. Additionally a horizontal clearance in the direction of the centerline of the car top of at least 300 mm (12 in.) shall be provided from the top of the hydraulic jack to any object creating a shearing hazard.
NOTE (3.4.8): See Nonmandatory Appendix G, Fig. G-5.
The horizontal car and counterweight clearances shall conform to Section 2.5.
The car shall be provided with buffers of one of the following types:
Section 3.8 Electrical Equipment, Wiring, Pipes, and Ducts in Hoistway, Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
Electrical equipment, wiring, pipes, and ducts shall conform to Section 2.8.
Machinery and sheave beams, supports, and foundations shall conform to Section 2.9.
Guarding of exposed auxiliary equipment shall conform to Section 2.10.
Section 3.13 Power Operation, Power Opening, and Power Closing of Hoistway Doors and Car Doors or Gates
For cars with corner-post or sub-post car frames, the formulas and specified methods of calculations do not generally apply and shall be modified to suit the specific conditions and requirements in each case.
For cars with corner-post or sub-post car frames, or where the rope hitches are not on the crosshead, the formulas and specified methods of calculations do not generally apply and shall be modified to suit the specific conditions and requirements in each case.
The requirements of 2.16.3 shall apply, except
(b) on data plates (see 220.127.116.11.2), the weight of the plunger is not to be included in the weight of the complete car, even though it is attached. The plunger weight is to be indicated independently. The operating speed in the down direction shall also be indicated.
(d) requirement 18.104.22.168.2(e) applies only where car safeties are provided.
If an auxiliary pump is used to move the car in the up direction to release the safeties, it shall
(a) have a relief valve that limits the pressure to not more than 2.3 times the working pressure
(b) be connected between the check valve or control valve and the shutoff valve
A plunger gripper shall be permitted to be provided for direct-acting hydraulic elevators using hydraulic jacks equipped with plungers. A plunger gripper shall be capable of stopping and holding the car with its rated load from the actual measured tripping speed per Table 22.214.171.124 and shall conform to 126.96.36.199 through 188.8.131.52. In Table 184.108.40.206 the words "rated speed" shall be replaced by "operating speed in the down direction."
(a) the external pressure applied to the plunger by the device is symmetrically distributed at locations around the circumference of the plunger. The resulting stress in the plunger shall not exceed 67% of the yield strength at any point of the plunger.
(b) the external pressure applied to the plunger by the device does not exceed 67% of the value that will cause local buckling. Where the external pressure is applied over substantially the full circumference of the plunger, the maximum value shall be permitted to be determined by 220.127.116.11.
(c) during the application, the plunger and the plunger gripper are capable of withstanding any vertical forces imposed upon them, and transfer such forces to the supporting structure. During the application of the device, any loading on the plunger shall not damage the cylinder.
(d) power is removed from the hydraulic machine before or at the time of application.
(a) The plunger gripper shall be fully operational during a primary electrical system power failure.
(b) The elevator shall not be permitted to restart after a normal stop in the event of the failure within the electrical means used to actuate the gripper of any of the following:
(1) a single mechanically operated switch
(2) a single magnetically operated switch, contactor, or relay
(3) a single solenoid
(4) a single solid-state device
(5) a software system failure
(6) the occurrence of a single ground
(a) The average deceleration rate at rated load shall be not less than 0.1 gravity nor more than 1.0 gravity. (See Nonmandatory Appendix P for minimum and maximum stopping distances.)
(b) Any peak deceleration rate in excess of 2.0 gravity shall have a duration of not greater than 0.04 s.
(a) that it is a plunger gripper.
(c) the maximum load in newtons (lbf) for which the gripper is designed and installed to stop and sustain.
(d) the manufacturer's name or trademark and identification number of the device.
(e) space for date of acceptance test. Date to be permanently marked following test.
(f) the diameter and minimum wall thickness of the plunger for which the device is applicable.
Where multiple hydraulic jacks are used, they shall be hydraulically connected to form a single hydraulic system.
(b) The plunger and the plunger connection to the car shall also be so designed and constructed that the total vertical deflection of the loading edge of the car platform due to eccentric loading of the car shall not exceed 19 mm (0.75 in.).
(a) are designed and installed with means for monitoring and maintaining them in accordance with accepted industry practices applicable to the methods
(b) are effective for specific conditions where the cylinder is installed
(c) provide means for checking ongoing compliance with 18.104.22.168.1
(a) The cylinder shall be constructed of a material that is immune to the stated conditions.
(b) The cylinder shall be completely covered or encased in a material that completely surrounds the exterior surface and is immune to the stated conditions. If the space between the protective casing and the cylinder is empty, the casing must be designed to withstand a static head of water from ground level to the bottom of the cylinder, based on the manufacturer's rating of the material used.
(c) The cylinder shall be protected by a monitored cathodic protection system.
(d) The cylinder shall be protected by a means that will provide an immunity level not less than that provided by the above methods for the stated conditions.
The metal stops and/or other means shall be so designed and constructed as to stop the plunger traveling in the up direction at maximum speed under full load pressure, should the normal terminal stopping device (see 3.25.1) fail to operate, or at a reduced speed when a terminal speed-reducing device is provided as required by 3.25.2. No running test onto the stop ring is required [see 22.214.171.124.2(s)].
The hydraulic jack shall be permanently and legibly marked. The marking shall be visible after installation. The letters and symbols shall be stamped, etched, cast, or otherwise applied with depressed or raised letters and symbols not less than 3 mm (0.125 in.) in height with the following information:
(a) the name or trademark by which the organization that manufactured the hydraulic jack can be identified
(b) the manufacturer's designation of the type or model
(c) year of manufacture
NOTE (126.96.36.199): Examples of two acceptable pipe standards are ASTM A106 and ASTM A53, Type E or S.
(a) protect the specified piping, tubing, or fittings from damage, which would cause unsafe elevator operation; or
(b) prevent uncontrolled movement of the elevator in the event of failure of the specified piping, tubing, or fittings
(a) a car safety conforming to 3.17.2
(a) not be installed within the hoistway, nor project into or through any wall. Installation shall be accomplished without introducing any twist in the hose, and shall conform with the minimum bending radius of SAE 100, R2 type, high pressure, steel wire reinforced, rubber-covered hydraulic hose specified in SAE J517.
(b) have a bursting strength sufficient to withstand not less than 10 times working pressure (see Section 1.3). They shall be tested in the factory or in the field prior to installation at a pressure of not less than 5 times working pressure and shall be marked with date and pressure of test.
(c) conform to the requirements of SAE 100, R2 type hose specified in SAE J517 and be compatible with the fluid used.
(d) be of nonreusable-type fittings.
(e) be permanently labeled/marked, indicating
(1) the name or trademark by which the manufacturer of the hose and fittings can be identified
(2) the type of hose and fitting
(3) the minimum factory test pressure
(4) the minimum bending radius of hose
(5) the date of installation
(6) the inspection procedure
(7) the name of elevator contractor
Where the hydraulic machine is located in the hoistway, the manually operated shutoff valve shall be permitted to be located inside the hoistway, provided that it is accessible from outside the hoistway to elevator personnel only (see Section 8.1).
(a) Type and Location. The relief valve shall be located between the pump and the check valve and shall be of such a type and so installed in the bypass connection that the valve cannot be shut off from the hydraulic system.
(b) Size. The size of the relief valve and bypass shall be sufficient to pass the maximum rated capacity of the pump without raising the pressure more than 50% above the working pressure. Two or more relief valves shall be permitted to be used to obtain the required capacity.
(c) Sealing. Relief valves shall be sealed after being set to the correct pressure.
(a) certifying organization's name or identifying symbol
(b) the name, trademark, or file number by which the organization that manufactured the product can be identified
(c) statement of compliance with ASME A17.1/CSA B44
(d) type designation
(a) Single-Jack Arrangements. Where a single valve is used, it shall be located in the pressure piping within 300 mm (12 in.) of the hydraulic jack. Multiple parallel valves are permitted in lieu of a single valve. These shall be located so as to minimize the distance from the valves to the hydraulic jack.
(b) Multiple-Jack Arrangements. Multiple-jack arrangements shall conform with one of the following:
(1) A single overspeed valve shall be located in the pressure piping within 300 mm (12 in.) of each hydraulic jack. Multiple parallel valves are permitted in lieu of single valves at each hydraulic jack. These shall be located so as to minimize the distance from the valves to each hydraulic jack.
(2) A single overspeed valve shall be located in the pressure piping on the hydraulic machine side of, and immediately before, the tee junction, wye junction, or branch junction that connects the branch pressure pipes to the jacks. Multiple parallel valves are permitted in lieu of a single valve at the junction. For dual hydraulic jack systems, the total length of branch pressure pipe between the tee or wye junction and the jacks shall not exceed the distance between the jacks, measured horizontally, plus 1 m (39 in.). For multiple-jack systems, the length of branch pressure piping shall be minimized.
188.8.131.52.4 Strength of Overspeed Valve Pressure Piping and Fittings Between the Overspeed Valve and the Jacks
(a) The overspeed valve tripping speed shall be not less than 110% nor greater than 140% of the elevator operating speed in the down direction, but in no case shall exceed 0.3 m/s (60 ft/min) above the rated elevator speed.
(b) The average deceleration rate shall be not less than 1.96 m/s2 (6.44 ft/s2) nor more than 9.81 m/s2 (32.2 ft/s2).
(c) Any peak deceleration rate in excess of 24.53 m/s2 (80.5 ft/s2) shall have a duration of not greater than 0.04 s.
(a) monitored cathodic protection
(b) a coating to protect the piping from corrosion that will withstand the installation process
(c) a protective casing, immune to galvanic or electrolytic action, salt water, and other known underground conditions, completely surrounding the exterior surfaces of the piping
Hydraulic control valves shall conform to the electrical requirements in Clause 4 of CSA C22.2 No. 139.
(a) a common actuating means (e.g., a cam, etc.) that is not physically part of the position sensing devices shall be permitted for the actuation of the position sensing device of the normal terminal stopping device and the position sensing device of
(1) the normal stopping means, and/or
(2) the terminal speed-reducing device
(b) a common mounting means shall be permitted for the position sensing device of the normal terminal stopping device and the position sensing device of
(1) the normal stopping means, and/or
(2) the terminal speed-reducing device
The device shall be so designed and installed that it will continue to function until the car reaches its extreme limits of travel.
The device shall be permitted to be rendered inoperative during recycling operation (see 3.26.7).
(a) a common actuating means (e.g., a cam, etc.) that is not physically part of the position sensing devices shall be permitted for the actuation of both the position sensing device of the terminal speed-reducing device and the position sensing device of the normal terminal stopping device
(b) a common mounting means shall be permitted for the position sensing devices of the terminal speed-reducing device and the normal terminal stopping device
(a) render the terminal speed-reducing device inoperative
(b) permit the car to restart after a normal stop
(a) be operated by the movement of the car
(b) have metal operating cams
(c) have contacts that are positively opened mechanically
(d) be of the enclosed type
(e) be securely mounted in such a manner that horizontal movement of the car shall not affect operation of the device
(a) One or both means to control upward movement of the elevator shall be controlled by the terminal speed-reducing device, either directly or through an intermediate device.
(1) Where an intermediate device is implemented with a solid-state device or software system to satisfy 184.108.40.206.4(a), the failure of any single solid-state device or a software system failure in the intermediate device shall not render the terminal speed-reducing device ineffective.
(2) Redundant devices used to satisfy 220.127.116.11.4(a)(1) shall be checked prior to each start of the elevator from a landing, when on automatic operation. When a failure as specified occurs the car shall not be permitted to restart.
(a) Requirement 18.104.22.168 does not apply.
(e) Requirement 2.26.6 does not apply.
(f) Requirement 2.26.8 does not apply.
(h) Requirement 2.26.10 does not apply.
(c) the sign shall be made of durable material and securely fastened and have letters with a height of not less than 6 mm (0.25 in.)
(a) the electrical protective devices listed in 22.214.171.124
(b) recycling operation (see 3.26.7)
(c) inspection transfer switch
(e) low oil protection means (see 3.26.9)
(b) broken rope, tape, or chain switches provided in connection with normal stopping devices, when such devices are located in the machine room, control room, or overhead space
(e) hinged car platform sill electric contacts
Hydraulic elevators powered by a polyphase AC motor shall be provided with the means to prevent overheating of the drive system (pump and motor) due to phase rotation reversals or failure.
(a) to stop the car at the terminals
(b) to stop the car when any of the electrical protective devices operate
(a) Two devices shall be provided to remove power independently from the pump motor. At least one device shall be an electromechanical contactor.
(b) The contactor shall be arranged to open each time the car stops.
(c) The electrical protective devices shall control both devices [see 126.96.36.199(a)] in accordance with 3.26.4.
(a) Power shall be removed from the hydraulic driving-machine motor.
(b) The hydraulic driving-machine motor shall not be permitted to restart.
Recycling operation shall permit the car to be lowered more than 25 mm (1 in.) below the bottom landing, but not require lowering in order to restore the relative vertical position of the multiple plunger sections, provided that
(a) the car is at rest at bottom landing
(c) no car calls are registered
(d) the speed during recycling does not exceed normal down leveling speed but in no case shall be more than 0.10 m/s (20 ft/min)
(e) normal operation cannot be resumed until car is returned to bottom landing and normal terminal stopping devices are restored to normal operation
When cylinders are installed with the top of the cylinder above the top of the storage tank, a pressure switch shall be provided in the line between the cylinder and the valve, which shall be activated by the loss of positive pressure at the top of the cylinder. The switch shall prevent automatic door opening and the operation of the lowering valve or valves. The door(s) shall be permitted to open by operation of the in-car open button(s), when the car is within the unlocking zone (see 2.12.1).
(a) direct sensing of liquid level
(b) a pump-run timer
Actuation of the means shall automatically bring the car down to the lowest landing, when the doors are closed.
(a) landing and car floor registration devices (or call buttons)
(d) "FIRE OPERATION" switch, unless otherwise specified in Section 3.27
Emergency operation and signaling devices shall conform to Section 2.27, except as modified by the following: The requirements of 3.26.9 and 188.8.131.52 shall be modified when Phase I Emergency Recall Operation and Phase II Emergency In-Car Operation are in effect, as specified in 3.27.1 through 3.27.4. The requirements of 184.108.40.206.1(b) and 220.127.116.11.2(b) shall be modified to include a machinery space containing a hydraulic machine.
(a) low oil protection (see 3.26.9)
(c) auxiliary power lowering (see 3.26.10)
(d) oil tank temperature shutdown (see 18.104.22.168)
If the elevator is incapable of returning to the recall level, the car shall descend to an available floor. Upon arrival, automatic power-operated doors shall open, and then reclose within 15 s. The door open button(s) shall remain operative. The visual signal [22.214.171.124.6(h)] shall extinguish.
(a) If any of the devices specified in 3.27.1(a), (b), (c), or (d) is activated, while Phase I Emergency Recall Operation is in effect but before the car reaches the recall level, the car shall do one of the following:
(2) If the car is below the recall level, it shall descend to an available floor.
(a) Automatic power-operated doors shall close within 15 s.
(b) The door open button(s) shall remain operational.
(c) The visual signal [see Fig. 126.96.36.199.6(h)] shall illuminate intermittently.
If any of the devices specified in 3.27.1(a), (b), (c), or (d) activate while the elevator is on Phase II Emergency In-Car Operation, an upward-traveling car shall stop and a downward-traveling car shall stop at or before the next available floor. All calls shall be canceled. The visual signal [see Fig. 188.8.131.52.6(h)] shall illuminate intermittently. The elevator shall accept calls only to landings below its location and respond in compliance with the requirements for Phase II Emergency In-Car Operation.
Elevator layout drawings shall, in addition to other data, indicate the following:
(a) required clearances and basic dimensions
(b) the bracket spacing (see Section 3.23)
(c) the estimated maximum vertical forces on the guide rails on application of the safety, where provided (see Section 3.23)
(d) in the case of freight elevators for Class B or Class C loading (see 184.108.40.206), the horizontal forces on the guide-rail faces during loading and unloading, and the estimated maximum horizontal forces in a post-wise direction on the guide-rail faces on the application of the safety device, where provided (see Section 3.23)
(e) the size and weight per meter (foot) of any rail reinforcement, where provided (see Section 3.23)
(l) the minimum "grade" of pipe (ASTM or recognized standard) required to fulfill the installation requirements for pressure piping, or in lieu of a specific "grade" of pipe, the minimum tensile strength of pipe to be used for the installation (see Section 3.19)
(m) the horizontal forces on the building structure stipulated by 220.127.116.11
(n) the length of the plunger and cylinder
(p) the method used to comply with 18.104.22.168 (protection of cylinders buried in the ground).