ISO 7176-14:2008 車椅子 — Part 14: 電動車椅子およびスクーター用の電源および制御システム — 要件と試験方法 | ページ 6

3.1

nominal voltage

suitable approximate value of the voltage used to designate or identify a battery

[SOURCE: Adapted from IEV 482-03-31]

3.2

command signal

electrical signal from the control device

3.3

control device

device with which the operator indicates the desired speed and/or direction of movement of the wheelchair

Note 1 to entry: A control device can be an integral part of a controller.

3.4

controller

electrical devices, circuits, and the case(s) in which they are housed that are used to convert the operator's indication of desired speed and/or direction of movement into the appropriate power to be supplied to the motor(s)

3.5

pinch point

location at which a moving part comes into contact with or close proximity to another part such that another object at that location would be cut or crushed

3.6

battery

one or more cells fitted with devices necessary for use, for example case, terminals, marking and protective devices

[SOURCE: IEV 482-01-04]

3.7

battery compartment

removable or non-removable enclosure for one or more batteries

3.8

battery pack

removable battery compartment that contains one or more batteries

Note 1 to entry: If there are no removable battery compartments, a battery pack consists of a single battery.

3.9

battery set

set of interconnected batteries used to power a wheelchair

3.10

battery charger

device that is connected to supply mains and to a battery set for the purpose of charging the batteries

3.11

cut-off voltage

specified voltage at which the discharge of a battery is considered finished

3.12

hazardous situation

circumstance in which people, property or the environment are exposed to one or more hazard(s)

[SOURCE: IEC 60601-1]

3.13

hazard

potential source of harm

[SOURCE: IEC 60601-1]

3.14

harm

physical injury or damage to the health of people or animals, or damage to property or the environment

[SOURCE: IEC 60601-1]

3.15

enclosure

part providing protection of equipment against certain external influences and, in any direction, protection against contact

Note 1 to entry: Enclosures provide protection of equipment against harmful effects of mechanical impacts.

Note 2 to entry: Barriers, shapes of openings or any other means – whether attached to the enclosure or formed by the enclosed equipment – suitable to prevent or limit the penetration of the specified test probes, are considered as a part of the enclosure, except when they can be removed without the use of a key or tool.

3.16

capacity

electric charge which a cell or battery can deliver under specified discharge conditions

Note 1 to entry: The SI unit for electric charge, or quantity of electricity, is the coulomb, C [1 C = 1 As (ampere second)] but in practice, capacity is usually expressed in ampere hours (Ah).

[SOURCE: IEV 482-03-14]

3.17

rated capacity

capacity value of a battery determined under specified conditions and declared by the manufacturer

[SOURCE: IEV 482-03-15]

3.18

discharge rate

electric current at which a battery is discharged

Note 1 to entry: The discharge rate is calculated as the rated capacity divided by the corresponding discharge time, which results in an electric current.

[SOURCE: IEV 482-03-25]

3.19

charge rate

electric current at which a secondary cell or battery is charged

Note 1 to entry: The charge rate is expressed as the reference current I_t = C_r/ n where C_r is the rated capacity declared by the manufacturer and n is the time base in hours for which the rated capacity is declared.

[SOURCE: IEV 482-05-45]

3.20

theoretical state of charge

electric charge added to a fully discharged battery by charging at a known charge rate for a known time, or estimated to remain in a battery that has been fully charged and then discharged at a known discharge rate for a known time, and expressed as a percentage of the rated capacity

3.21

terminal

conductive part of a device, electric circuit or electric network, provided for connecting that device, electric circuit or electric network to one or more external conductors

[SOURCE: IEV 151-12-12]

Note 1 to entry: Removable bolts, screws and fasteners are not considered part of a terminal.

3.22

analogue signal

signal in which the characteristic quantity representing information may at any instant assume any value within a continuous interval

Note 1 to entry: For instance, an analogue signal may follow continuously the values of another physical quantity representing information.

[SOURCE: IEV 702-04-02]

3.23

leakage current

electric current in an unwanted conductive path other than a short circuit

[SOURCE: IEV 151-15-49]