Table 4.6 - Current ratings and volt drops for unsheathed single core p.v.c. insulated
----------------- cables

Table 4.7 - Current ratings and volt drops for sheathed multi-core p.v.c.-insulated
----------------- cables

Table 4.8 - Current ratings of mineral insulated cables clipped direct

Table 4.9 - Volt drops for mineral insulated cables

 

Table 4.14 - Cable factors (terms) for conduit and trunking

Table 4.15 - Cable factors (terms) for straight runs up to 3m.

Table 4.16 - Conduit factors (terms)

Table 4.17 - Trunking factors (terms)

Table 5.1 - Maximum earth-fault loop impedance for 240 V socket outlet circuits
----------------- protected by fuses

Table 5.2 - Maximum earth-fault loop impedance for 240 V circuits
-----------------protected by miniature circuit breakers to give
---------------- compliance with 0.4 s disconnection time

Table 5.3 - Maximum impedance of circuit protective
----------------- conductors to allow 5 s disconnection time
----------------- for socket outlets

Table 5.4 - Maximum earth-fault loop impedance for 240 V fixed
---------------- equipment distribution circuits protected by fuses

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Extracted from The Electricians Guide Fifth Edition
by John Whitfield

Published by EPA Press Click Here to order your Copy.

Click here for list of abbreviations