Question 1

How much load can an extension board take?

Accepted Answer

Go by the rating printed on it. A 6 A board can take about 1,300–1,400 W in total at 230 V; a 16 A heavy-duty board about 3,600 W — if its cable is thick enough. Add up the watts of everything plugged in and stay under the rating.

Question 2

What's the difference between a spike guard and a plain extension board?

Accepted Answer

A spike guard (surge protector) has components that absorb short voltage spikes before they reach your TV, computer or router; a plain extension board just adds sockets. Many also have an overload switch or fuse. Surge protection helps but can't stop a direct lightning strike.

Question 3

Can I plug one extension board into another?

Accepted Answer

Don't. Daisy-chaining boards overloads the first board and the wall socket, adds loose connections and is a common cause of melted plugs and fires. Install more wall sockets instead.

Question 4

Why should I unwind an extension reel fully?

Accepted Answer

Cable left coiled on the reel can't shed heat; with a heavy load like a heater, drill or pressure washer it can overheat and melt. Unwind it fully for high loads, and use a reel rated for the current.

Question 5

Why does a plug get hot in the socket?

Accepted Answer

A loose fit between the pins and the socket contacts (worn sockets), an overloaded socket, or a poor connection inside the plug top. Heat means arcing and burning — replace the worn socket or plug and reduce the load.

Question 6

What's the difference between Indian 6 A and 16 A plugs?

Accepted Answer

Both are 3-pin plugs with the earth as the large top pin. The 16 A plug (often called 15 A) is noticeably bigger, with thicker pins spaced further apart, for heavy appliances; it fits only 16 A sockets.

Question 7

How do I wire a rewirable plug top?

Accepted Answer

Use the L, N and E marks inside the plug: phase (red or brown) to L, neutral (black or blue) to N, and earth (green or green-yellow) to E — the large pin. Clamp the cable's outer sheath under the cord grip so the wires can't be pulled out.

Question 8

Is it safe to use multi-plug adapters?

Accepted Answer

A good multiplug is fine for a few light loads, but stacking adapters or running heavy appliances through one socket overloads it. Never plug a heater, iron or geyser into a multiplug.

Question 9

Why do plugs fit loosely in some sockets?

Accepted Answer

Worn socket contacts lose their grip after years of use, and cheap sockets may never grip well. A loose plug sparks and heats up — replace the socket rather than bending the plug's pins.

Question 10

Should a TV and computer be on a surge protector?

Accepted Answer

Yes, it's worth it — electronics with sensitive power supplies benefit most. Use a board with surge protection and an indicator that shows the protection is still working; replace it after a big surge event.

Question 11

Are extension boards with switches better?

Accepted Answer

Individual switches let you turn off chargers, TVs and set-top boxes completely, cutting standby use and making it easy to unplug safely. A master switch or overload breaker adds protection.

Question 12

How thick should an extension cord's wire be?

Accepted Answer

For light loads, 0.75–1 sq mm flexible cord is common; for heaters, irons and power tools use at least 1.5 sq mm (or more on long cords) and a 16 A plug. The cord must match the board's rating.

Question 13

Can I use an extension board in the bathroom or kitchen sink area?

Accepted Answer

Keep extension boards away from water — never in bathrooms and never beside sinks. Kitchens need fixed 16 A sockets above the worktop, on an RCCB-protected circuit.

Question 14

Is it safe to plug things into a bulb holder?

Accepted Answer

No. Old 'holder adapters' that turn a bulb holder into a socket have no earth and aren't made for appliance loads. Have a proper socket installed.

Question 15

How do I use foreign plugs in India?

Accepted Answer

Use a proper travel adapter that grips the pins firmly and, for appliances, check they accept 230 V 50 Hz. Don't force or bend pins into a socket — a loose fit can arc and overheat.

Question 16

What is a tower extension board?

Accepted Answer

A vertical power strip with sockets on several sides, taking less desk space — handy for workstations and kitchens. Load rules are the same: add up the watts and stay under its rating.

Question 17

What does the light on an extension board mean?

Accepted Answer

Usually that power is reaching the board. On surge protectors a second light may show that the protection is still active — if it goes out, the board no longer protects against spikes and should be replaced.

Question 18

Should extension boards be switched off at night?

Accepted Answer

It's a good habit: it cuts standby power from chargers and TVs, and reduces risk from damaged chargers left plugged in.

Question 19

Why did my extension board melt?

Accepted Answer

Usually overload (a heater, iron or kettle on a light-duty board), a loose plug arcing, or a coiled cable under heavy load. Replace it, and plug heavy appliances straight into a 16 A wall socket.