Match the lead's voltage, current rating, plug and socket to the supply and equipment. Add loads that may run together and account for the lower rating that may apply when a reel remains coiled.
Temporary Power Connections for Site Tools
Extension Leads connect compatible tools and equipment to temporary power where the fixed outlet cannot be reached safely. MacBlair stocks site leads within its site equipment range. Voltage, plug and socket type, cable length, current rating and environmental protection must all match the supply and connected load. Connector colour alone is not enough; confirm every rating marked on the equipment.
Use the shortest practical length and add the ratings of equipment that may operate together. A cable reel should be fully unwound when required by its instructions, because coiled cable can retain heat and reduce its safe load. Match 110V connections to a compatible site transformer, and never force or modify unlike connectors. Voltage drop also increases with length, particularly under heavier electrical demand.
Route Extension Leads away from sharp edges, hot surfaces, standing water, doorways and vehicle paths. Where crossing a route cannot be avoided, use the protection specified by the site plan. Inspect cable insulation, strain relief, plugs and sockets before use. Tape is not a permanent repair for damaged insulation, and defective leads should be isolated immediately. Keep connection points visible where they can be checked without disturbing active work.
Avoid daisy-chaining several leads or using adaptors that overload one outlet. Keep connections raised or protected as the equipment design requires, and disconnect by gripping the plug rather than pulling the cable. After use, wipe off dirt, coil the lead without tight kinks and store it dry. Site safety equipment supports wider electrical controls. Record workplace inspections and tests according to the site's electrical maintenance procedure.
Extension Lead FAQs
Follow the reel instructions and unwind it fully where required, especially under higher loads. Current through tightly coiled cable can build heat, so the permitted coiled rating may be much lower.
Daisy-chaining increases voltage drop, connection points and overload risk. Use one correctly rated lead of suitable length or have the temporary supply planned by a competent person.
No. Tape does not restore the insulation, strain relief or mechanical strength required for site use. Isolate the lead and arrange competent repair or replacement.
Avoid the crossing where possible by rerouting the supply. If it is necessary, use suitable cable protection and traffic control from the site plan so pedestrians, tools or vehicles cannot damage the lead.