AS/NZS 3696.14:1998

1 - AS/NZS 3696.14:1998 WHEELCHAIRS - POWER AND CONTROL SYSTEMS FOR ELECTRIC WHEELCHAIRS-REQUIREMENTS AND TEST METHODS
4 - PREFACE
6 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
8 - 3 Definitions
8 - 3.1 battery nominal voltage
8 - 3.2 command signal
8 - 3.3 controller
8 - 3.4 pinchpoint
8 - 3.5 watchdog
8 - 3.6 battery
8 - 3.7 battery pack
8 - 3.8 battery set
8 - 3.9 battery charger
9 - 4 Apparatus
9 - 4.1 Inclined test plane
9 - 4.2 Horizontal test plane
9 - 4.3 Speedometer
9 - 4.4 Means of measuring braking distance
9 - 4.5 Direct current source
9 - 4.6 Standard jointed test finger
9 - 4.7 Standard unjointed test finger
9 - 4.8 Force measuring instrument
9 - 4.9 Force measuring instrument for control devices
9 - 4.10 Positive air pressure measuring device
9 - 4.11 Reduced air pressure measuring device
9 - 4.12 Test circuit
10 - 4.13 Circuit breaker
10 - 4.14 Means of supporting the wheelchair
10 - 4.15 Means of detecting current flow with a timing function
10 - 5 Preparation of test wheelchair
10 - 5.1 Wheel chair set-up
10 - 5.2 Inflation of pneumatic tyres
10 - 5.3 Adjustments
11 - 5.4 Batteries
11 - 5.5 Loading the wheelchair
11 - 5.6 Records
11 - 6 Electrical systems
11 - 6.1 Battery connection and circuit protection diagram
12 - 6.2 Colour and marking of wires connected to the batteries
12 - 6.3 Electrical isolation of wheelchair
12 - 6.3.1 General
12 - 6.3.2 Requirements
12 - 6.3.3 Test procedure
13 - 6.4 Fuses
13 - 6.5 Interchangeability of connectors
13 - 6.6 Attachment and positioning of wiring
13 - 6.6.1 General
13 - 6.6.2 Requirements
13 - 6.6.3 Test procedure
14 - 6.7 Protection from non-insulated electrical parts
14 - 6.7.1 General
14 - 6.7.2 Requirement
14 - 6.7.3 Test procedure
14 - 6.8 Short-circuit protection
14 - 6.8.1 General
14 - 6.8.2 Requirements
14 - 6.8.3 Test procedure
15 - 6.9 Safety when charging batteries
15 - 6.9.1 General
15 - 6.9.2 Requirement
15 - 6.9.3 Test procedure
15 - 6.10 Reversed polarity at the battery
15 - 6.10.1 General
15 - 6.10.2 Requirements
16 - 6.10.3 Test procedure
16 - 6.11 Controller overvoltage protection
16 - 6.11.1 General
16 - 6.11.2 Requirements
16 - 6.11.3 Test procedure
17 - 6.12 Controller command signal processing failures
17 - 6.12.1 General
17 - 6.12.2 Requirements
18 - 6.12.3 Test procedure
20 - 6.13 Controller output device failure
20 - 6.13.1 General
20 - 6.13.2 Requirements
20 - 6.13.3 Test procedure
22 - 6.14 Stalled condition protection
22 - 6.14.1 General
22 - 6.14.2 Requirements
23 - 6.14.3 Test procedure
23 - 6.15 Ability to stop when power is switched off or lost
23 - 6.15.1 General
23 - 6.15.2 Requirements
24 - 6.15.3 Test procedure
25 - 6.16 Controller microprocessor watchdog
25 - 6.16.1 General
25 - 6.16.2 Requirements
25 - 6.16.3 Test procedure
26 - 6.17 Safety with discharged battery
26 - 6.17.1 General
27 - 6.17.2 Requirements
27 - 6.17.3 Test procedure
27 - 7 Non-powered mobility test
27 - 7.1 General
28 - 7.2 Requirements
28 - 7.3 Test procedure
29 - 8 Safety guard test
29 - 8.1 General
29 - 8.2 Requirements
29 - 8.3 Test procedure
29 - 9 Battery chargers
29 - 9.1 General
30 - 9.2 Requirements
30 - 9.2.1 General
30 - 9.2.2 Battery chargers having more than one rated output voltage
30 - 9.2.3 Battery chargers which are suitable for more than one type of battery
30 - 9.2.4 Indication of correct connection
30 - 9.2.5 Reverse polarity connection
31 - 9.2.6 Charging
31 - 9.2.7 Chargers for batteries that give off flammable gas
31 - 9.3 Test procedures
31 - 9.3.1 Protection against reverse polarity connection
32 - 9.3.2 Delay before the output circuit is energized
32 - 9.3.3 Charging capability
32 - 10 Forces needed to operate control devices
32 - 10.1 General
33 - 10.2 Requirements
33 - 10.3 Test procedure
33 - 10.3.1 Lever to control speed and/or direction
33 - 10.3.2 Pushbutton, rocker, and keypad switches
33 - 10.3.3 Toggle switches
34 - 10.3.4 Pneumatic switches (sip and puff)
34 - 11 Test report
35 - 12 Information to be disclosed
41 - APPENDIX ZZ LIST OF VARIATIONS TO ISO 7176-14 FOR AUSTRALIA AND NEW ZEALAND

Specifies requirements and test methods for power and control systems of electric wheelchairs (including scooters). Includes vehicles with built-in battery chargers. This Standard is based on but not equivalent to and reproduced from ISO 7176-14:1997.

This part of ISO 7176 specifies the requirements for the power and control systems of electrically powered wheelchairs, including battery chargers, and associated test methods. It sets minimum requirements for the protection of the wheelchair user during normal use and some conditions of abuse and failure. It also specifies methods of measurement of the forces necessary to operate the controls and sets limits on the forces needed for some operations. This part of ISO 7176 is applicable to electrically powered vehicles intended to provide indoor and outdoor mobility for disabled persons whose mass at speeds up to 15 km/h does not exceed 100 kg.It is not applicable to electrically powered vehicles which incorporate devices that need to be connected to a domestic or industrial power supply greater than 100 volts (e.g. those with built-in battery chargers).It does not include requirements on electromagnetic susceptibility or emissions.NOTE-Further work is in progress by CEN/TC 293 on electromagnetic compatibility requirements for wheelchairs related to the Medical Device Directive, whilst work in ISO/TC 173/SC 1 will provide specific electromagnetic compatibility requirements for wheelchairs.

First published in Australia as AS 3696.14(Int):1991.
Jointly revised and designated as AS/NZS 3696.14-1998.