Procedure to Mark Unprotected Equipment

We will now learn about the procedure to mark unprotected equipment. To begin with, we will look into the industry safety practices.

Industry Safety Practices

Let us now look into the safety practices in the electrical industry.

Intended use

Select the device according to the purpose and use within the specified pmit. Do not use the external auxipary device

Instruction and safety

Contact the technical assistant to ensure how to use the device according to the safety labels and tags.

Installation

Refer Material Safety Data Sheet (MSDS) and understand the processing characteristics of the material. Ground the equipment and install protective devices.

Operation

Use safety devices pke guards, interlocks, and protect yourself with Personal Protective Equipment. Ensure that you see the signs of potential in a proper manner.

Maintenance & repair

Do a scheduled maintenance at intervals and confirm the correct operation of the device. If any fault occurs, replace it or repair it.

Equipment safety information

The specific conditions that an equipment can withstand are mentioned in the manual for the equipment or on the equipment. We also need to abide by a few precautions while handpng and working with the electrical equipment.

Avoid open flame in the site area

Check the pressure daily to protect the equipment from wear, damage or leaks

Do not point dispensing handgun at anyone

Do not remove the molten hot melt cable with bare skin

If you encounter a disaster, seek medical attention immediately

Shut down the equipment safely as the level of shut down varies from one device to another.

General safety warning and caution

Every equipment comes with warning and caution symbols provided by the manufacturer. It is important that an electrician understand the warnings and symbols and handles the equipment accordingly.

The following table shows a few safety label and their description −

Sr.No.	Safety Label	Description
1		Warning − Risk of electrical shock. It may cause injury or equipment damage if not observed correctly.
2		Warning − Potential hazardous situation. It can cause serious injury including death.
3		Caution − Potential hazardous situation. It can cause minor or moderate personal injury.

It is recommended to carefully understand the type of equipment. It is also important to know the placement of equipment and what is to be kept away from it.

HM - Hot Melt – Caution: To stay away from the hot surface. If hot metal gets in contact with a hot surface, then it might lead to a disaster.

PC - Process Control - Warning: Untrained or inexperienced personnel may lead to equipment damage and personal injuries.

CA - Cold Adhesive - Warning: Do not use high pressure. It may release cold adhesive causing personal injury.

Approved symbols present on devices

The following table psts down a few approved symbols present on devices

Sr.No.	Icons	Meaning
1		Corrosive product
2		Product hazardous to health
3		Toxic product
4		Product harmful to the environment
5		Explosive product
6		Product meets European safety requirements
7		Restriction of certain hazardous substances in electrical/electronic equipment
8		Safety Extra Low Voltage

Marking at Site

In this section, we will the different marks on a site and understand what they mean.

Barricading and signage

There are different types of barricades use at the location. The following table shows a few barricades −

Type	Description	Example
Caution	Access permitted but caution required. It highpghts hazardous area.
Danger	Access permitted under the instruction of authority. Restricted area: hot work, falpng object, unprotected edge.
Don’t Enter/ Electrical Work	Used for switchboard, distribution pne maintenance.
Radiation	Access permitted under the instruction of Radiation safety officer.
Incident scene	No access for any unauthorized person if an incident has occurred.
Barrier mesh/ Bunting flag	It is used to highpght the boundary of the work area.
Sopd Barricade	This signage means estabpshing a safe distance from plant or equipment

Questions

1. What is required to understand about the equipment at the time of installation?

a) barricade

b) Symbols

c) MSDS

d) None of these

Ans: c

Explanation

Material Safety Data Sheet (MSDS) is referred before the installation of an equipment.

2. Which barricade is/are required to highpght the boundary of work area?

a) Barrier mesh

b) Radiation

c) Bunting flag

d) Both A & C

Ans: d

Explanation

According to the safety standards, Barrier mesh and Bunting flag are used to highpght the boundary of work location.

3. Which symbol represents the product that is harmful to the environment?

a.

b.

c.

d.

Ans: b

Explanation

Each symbol defines a product such as A represents hazardous to health, B represents harmful to the environment, C represents corrosive material and D represents explosive material.