ASME A17.5:2019 pdf free download

ASME A17.5:2019 pdf free download.Elevator and escalator electrical equipment.
enclosure — the outer cabinet that completely encloses live parts of an electrical apparatus to prevent personnel from accidentally contacting energized parts and to protect the equipment from physical damage.
enclosure, fire — a part of the equipment intended to minimize the spread of fire or flames from within.
enclosure environmental rating — an enclosure rating signifying compliance with defined environmental construction and performance requirements.
live parts — conductive components intended to be energized during operation. motor circuit — the circuit that carries the main power for a motor.
motor control circuit — the control circuit associated with a motor controller.
opposite polarity — with respect to spacing and insulation requirements of this standard, a difference in potential between two points, such that shorting of these two points would result in a condition involving an over current; rupturing of printed wiring-board traces, components, or fuses; or similar results.
overcurrent any current En excess of the rated current of equipment or the ampacity of a conductor resulting from abnormal conditions. It may result from overload, short circuit, or ground fault.
overcurrent device — a device capable of automatically opening an electric circuit, under both predetermined overload and short-circuit conditions, either by fusing of metal or by electromechanical means.
overcurrent protective device — see definition for overcurrent device.
overload — a condition that causes equipment or circuitry to exceed its effective-current (RMS) rating over its rated duty cycle. Overload currents flow within the complete intended path. Overload conditions may result from excessive mechanical or electrical loading.
overload relay — a device employed to protect motors from damage due to overheating caused by excessive current flow over a period of time by causing the motor controller to interrupt the motor current.
overvoltage category — a grouping of products based on typical installed location with respect to overvoltage protection and available energy.
pigtalls — a length of wire, one end of which Is pre-connected at the equipment manufacturer’s location. The free end Is Intended for connection during final Installation.
pilot duty — the rating assigned to a relay or switch that controls the coil of another relay, contactor, or other similar load.
power-conversion equipment — equipment that supplies power to control a motor(s) at a frequency or voltage which is different from the input supply.
primary battery — a battery which is the sole source of power for the circuit where the circuit does not include any recharging circuitry.