(3) Emergency exit sign boards
Definition
In the case of a fire or other emergency, an exit sign is a public utility device that indicates the position of the nearest emergency escape. Exit signs must be illuminated at all times. Exit signs are meant to be easily understood by everyone. Previously, this meant exit signs that displayed the word "EXIT" or its equivalent in the local language, but currently all exit signs throughout the world are in pictorial form as well.
Pictorial Illustration of problems with emergency exit sign board
The images below depict electrical exit sign board problems, making it easier to comprehend what the issues are.
Pictorial illustration of solutions to the electrical emergency exit sign boards problems
The images below show solutions to problems with exit signboards.
(4) Electrical distribution boards
Definition
The distribution board is a component of the power supply system that divides/feed an electric power into sub-circuits and provides a protective fuse or circuit breaker for each circuit.
Pictorial illustration of problems with electrical distribution boards
The pictures below show the problems related to electrical distribution boards, with the help of which it will be easy to understand what are the problems of electrical distribution boards.
Pictorial illustration of solutions to the electrical distribution boards problems
The images below show solutions to problems with distribution boards.
All troubleshooting guidelines are listed, and if these guidelines are followed, all problems related to distribution boards can be avoided.
One meter of clearance is provided in front of the D.B.
Combustible material is not stored nearby within one meter of the D.B.
A rubber mat provides insulation in front of the D.B.
The D.B. is installed at a compliant location
Artificial respiration sign is installed beside the D.B.
Ampere meter, Volt meter, and indicating lights are installed and functional, as well as breakers and fuses.
A clear & permanent capacity information label is provided
The door of D.B. has a safety sign.
D.B. has an operable door
D.B. door and C.B. protection door is connected with Earthing
Earthing cable size is appropriate
D.B. is properly cleaned/concealed dust & vermin proof
Clear & Permanent identification marking provided
Any breaker damage
Phase separators have been installed b/w MCCB terminals
No circuit is drawn without incorporated C.B.
No higher rated C.B. against low rated cables
Wires are separated from iron or other heat source
No unterminated wire found
Multilooping of cables is not observed
Cable and bus bar color coding is maintained.
Each circuit has a designated neutral and earth.
The presence of cable labelling and tagging/wire identification, i.e. CKT 1, CKT 2.
The top and bottom holes and glands are carefully sealed with Sealant foam/Glass wool.
The conductors are outfitted with wire lugs and phase-specific insulation.
On the Bus Bar, there is a protection sheet.
Thermal scanner detects no overheating, overloading, or symptoms of burning.
Examine the equipment / appliances for the presence of earth connection.
D.B. is 2.5 meters away from the washing machine.
Reviewed by Electrical Engineering World
on
June 09, 2024
Rating:
