Electrical Hazards; General Precautions; Component Testing And Replacement - Honeywell Touchpoint Plus Wireless Technical Handbook

MAN0984_Iss 2_09/19
3020M5001_2
Safety Hazards, Warnings And Cautions

2.3 Electrical Hazards

Gas detection systems contain electrical supplies that are potentially dangerous and hence precautions must
be taken to prevent the risk of electrocution.

2.3.1 General Precautions

•
Read the relevant manual before beginning any operating or service procedures.
•
Only personnel trained and certified by Honeywell are authorised to service, fit or remove internal parts.
•
Only the minimum number of trained personnel, consistent with safety, should have access to the area
while work is being carried out. If necessary, erect warning signs and barriers.
•
Follow accepted working procedures and codes of practice as well as the electrical safety code for the site
where the equipment is installed.
•
Never operate the equipment under normal conditions with access panels removed or shorting links fitted.
•
Do not 'Live Test' without a Safe System of Work (SSoW).
•
Always keep the area around the equipment dry and free of obstructions.
•
Switch off and Isolate the equipment if water ingress is suspected or confirmed.
•
Never operate the equipment if any Mains power cable is frayed or damaged.
•
Never wear wristwatches, rings, bracelets, or other jewellery when working around electrical circuits or
moving parts.
•
Take anti-static precautions when working on electronic circuits.
•
Never work on electrical equipment alone.

2.3.2 Component Testing and Replacement

Before carrying out any electrical testing or component replacement:
•
Read this Manual to become familiar with the location of high voltage components.
•
Isolate the system at the main circuit breaker, lock it in the 'Off' position, and attach a notice indicating
that maintenance work is in progress.
•
Always wait for 5 minutes after isolating the equipment to ensure that stored energy has dissipated.
•
Never assume the polarity of cabling or replacement components. Refer to electrical schematics or
contact Honeywell for confirmation.
•
Use only Honeywell approved replacement parts.
Only Honeywell trained and certified maintenance technicians are authorised to carry out component testing
and replacement. Unauthorised work may result in a potentially dangerous situation and will invalidate the
WARNING – UNAUTHORISED PERSONNEL
ANTI–STATIC PRECAUTIONS
Antistatic Precautions are required to prevent severe damage to electronic components.
manufacturer's warranty.
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Touchpoint Plus Wireless
Technical Handbook