The Kewtech range of 17th Edition certification books are fully up to date and comply with BS7671 amendment 3. All pages are duplicated (carbonless paper). The family tree is split into two streams, new installations and existing installations. The testing results schedules are common to both streams.

TC3 is an Electrical Installation Condition Report for domestic or similar premises up to 100 A supply. Use with TC5 Schedule of Test Results for up to 12 ways or TC6 for greater than 12 ways. Also for extra observations use the optional TC7.

For incoming supplies up to 100 A use TC1 plus the results pages either TC5 or TC6
For incoming supplies over 100 A use TC8 plus the results pages either TC5 or TC6

For incoming supplies up to 100 A use TC3 plus the results pages either TC5 or TC6
For incoming supplies over 100 A use TC4 plus the results pages either TC5 or TC6
For extra observations use TC7 (optional)

For up to 12 ways use TC5
For greater than 12 ways use TC6

Use TC2 - This is a standalone certificate

No of Cert: 8
Pages / Cert: 5
No of sheets Inc. copies: 80

Complies to BS 7617 Amendment 3