• Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Disclaimer
  • Safety advice
  • Magazine
  • About Us
  • Contact Us
Diy Fix It

Diy Fix It

Trade advice to help you DIY.

  • Building
  • Electrical
  • Heating
  • Decorating
  • Materials
  • Tools
  • Garden
  • Plumbing

Flex types

Used for portable and small appliances such as table lamps, pendant lights and fan heaters.

Several types of flex are available. The type used is dependent upon the appliance being connected. For very low voltage applications such as battery-operated doorbells, the flex may have just two conductors each insulated in a plastic coating. These are not generally color-coded.
Other applications will require sheathed flex which has two or three insulated conductors inside. Those with two conductors are used for double-insulated appliances. Those with three conductors are used for appliances requiring an earth.

The sheathed flex has colour-coded conductors.

Brown = Live.
Blue = Neutral.
Green and yellow = Earth.

When choosing a flex it must be of the appropriate type and size for the job. The following table shows the rating and the size of the conductors (its cross section measured in mm sq) for various appliances.

Flex sizes

Conductor size measured in mm sq

0.50

0.75

1.00

1.25

1.50

2.50

4.00

Rating in amps

3

6

10

13

15

20

25

Maximum appliance rating in watts

Lighting up to 720

1440

2400

3120

3600

4800

6000

Primary Sidebar

Footer

Popular content

Laying chipboard
How to hang a door
Building a two storey extension
DIY Kitchens Reviews

Lifting Floorboards

Content notice

Under no circumstances can the content on this website be copied.

Business information

Disclaimer
Terms of Service
Privacy Policy
Cookie Policy
Sitemap

Copyright DIYFixIt 1999 – 2020. All rights reserved.

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.Ok