ASME A17.5 pdf free download

ASME A17.5-2014 pdf free download.Elevator and escalator electrical equipment.
2.3 Definitions
The following definitions shall apply in this Standard:
bonding — a low impedance path obtained by permanently joining all non-current-carrying metal parts to ensure electrical continuity and having the capacity to conduct safely any current likely to be imposed on it.
conformal coating — a protective covering applied on a printed circuit board capable of conforming to the configuration of objects coated, used to increase the dielectric voltage-withstand capability between conductors and/or to protect against environmental conditions.
control circuit a circuit that carries the electric signals directing the performance of a controller, but which does not carry the main power circuit (see IEEE Standards Dictionary of Electrical and Electronic Terms).
controller — a device or group of devices that serves to govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected.
controller, motor, manual — a motor controller operated only by direct manual means.
controller, motor, solid-state — a motor controller designed to make and/or break the current in a motor circuit by means of the controlled conductivity of a semiconductor.
comparative tracking index, (CII) — a rating which provides an indication of the material’s ability to withstand carbonization due to low level electrical current on the surface of the material.
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 in 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 — grouping of products based on typical installed location with respect to overvoltage protection and available energy
pigtails — 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.
printed circuit board — a board produced from rigid or flexible industrial laminate material that provides point-to-point connections and/or printed components in a predetermined arrangement.
printed wiring board — see definition for printed circuit board.ASME A17.5 pdf download.