CIRCULAR TO ALL CONTRACTORS ON
ELECTRICAL SAFETY
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bec高级报名费
OCCUPATIONAL SAFETY AND HEALTH DIVISION
MINISTRY OF MANPOWER
SIMPLE HINTS
INTRODUCTION
All temporary electrical installations in construction worksites are required to satisfy the requirements stipulated under:F Section 20 of the Factories Act;
F Regulation 16 & Regulation 175 of the
Factories (Building Operations and Works of Engineering Construction) Regulations;F CP 44 : Code of Practice for Temporary Electrical Installation in Building of Construction Sites.
Here are some simple tips you can follow to help make your electrical installations safe for u:
• Install a PUB approved Earth Leakage
Circuit Breaker (ELCB) and test it monthly.• Always engage a licend electrical contractor to do your wiring.• Send any damaged or defective electrical equipment or appliances to the authorid agents or competent repairers.• Do not overload a socket outlet by
connecting veral appliances using multi-way adaptors.
•
Do not u appliances or accessories in electrical installation unless they have been tested by PSB and approved by PUB.
• Do not u appliances or accessories in electrical installation unless they have been tested by PSB and approved by PUB.• Never remove the plug of an appliance from the socket outlet by pulling at the cable.• Regularly check and replace all plugs,
switches, socket outlets and adaptors that are damaged, faulty or worn out.•yup
英语等级考试成绩查询
Never inrt bare conductors of flexible cable directly into socket outlet without using a plug.
• Avoid switching on/off or handling electrical appliances or accessories when your hands or feet are wet or the ground on which you are standing is wet.• All expod conductors should be insulated or kept out of reach.• Worn and damaged flexible cables must be replaced and avoid "knotting" or "kinking" of flexible cables when they are coiled.
OCCUPATIONAL SAFETY AND HEALTH DIVISION
MINISTRY OF MANPOWER
• Do not lay any cable near areas of hot work,
on the floor and in between door hinges.
上海高中辅导• Periodic check on the resistance of the earth circuit is recommended to be carried out by
licend electrical contractor.
• Always connect the wires for a three-pin
industrial plug according to the following international colour code.Failure to ensure that all electrical installations are in good condition may result in fatal accident.
FATAL CASE # 1 :
A worker was electrocuted when he came into contact with the “energid” metal casing of a grouting machine. The 3-pin plug ud for the machine was damaged and a strand of live copper wire had electrically bridged the earth conductor wires, thus energising the metal casing. At the time of the accident, the decead was working on a wet floor and not wearing any footwear.FATAL CASE # 2 :
A worker was electrocuted while switching on an electric hand grinder. The electric hand grinder wa
s rated for u at 230 volts but was supplied with about 400 volts of electricity from a diel generator.
The 400 volts supply had burnt the motor of the hand grinder. This caud the hand grinder’s metal casing to become “live” and as a result, the worker
vega
was electrocuted.
什么事英语LIVE (Brown)
NEUTRAL (Blue)
EARTH哈利波特全集txt
genuine什么意思
(Green with Yellow stripes)
FATAL ACCIDENT
