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ELECTROFUSION DO'S & DON'TS
Use equipment that is clean, in good condition, regularly maintained and within required calibration.
Ensure that cutters/blades, scrapers and restraining clamps are clean and in good condition.
Mechanical scrapers must be used wherever possible.
ELECTROFUSION DO'S
Understand the principles of electrofusion.
Ensure all fusion indicators have rised, if not cut out and make new weld.
Use a shelter and ground sheet, both in dry and wet conditions, to minimise contamination.
Use pipe end covers wherever possible.
Always enter your details into the EF control box is the box requests it; your operator code and job code must be entered to allow full traceability.
Always use clamps for alignment/restraining/re-rounding.
Ensure control box voltage is compatible with fitting.
Ensure pipe and fittings to be jointed are compatible with each other.
Cut pipe ends square for all electrofusion socket fittings.
Fully scrape pipe and/or spigot surfaces.
Keep scraped pipe and/or spigot surfaces and fittings clean.
Assemble joint and fuse immediately following scraping the pipe.
If automatic fittings and boxes are being used, connect the red lead end to the fitting terminal with the red pin and the black lead to the plain pin.
In all cases check the fusion time displayed by the control box matches the time on the fitting. If different, do not continue to weld, replace with a new bagged fitting or enter fitting time manually.
Ensure correct fusion and cooling times are observed and adhered to.
Drilling/tapping through fitting/pipe should only be carried out following the required quality inspections and pressure testing.
Always ensure you mark the completed joint with the number issued from the electrofusion control box, along with the date. Again, this is imperative for full traceability.
ELECTROFUSION DON'TS
Do not start any electrofusion joint unless it can be completed without interruption.
Do not use an electrofusion box within an excavation.
Under no circumstances should an attempt be made to carry out a second fusion cycle on any fitting.
Incomplete, interrupted, failed or aborted fittings should ALWAYS be cut out, bagged and numbered with correspoding joint number for submission to the supervisor for inspection.
Do not use dirty or contaminated fittings, or those from split or torn bags, or touch prepared surfaces.
Do not leave fittings out of their protective bags or remove them from bags until immediately before use.
Do not allow prepared fusion/jointing surfaces to become wet or damp.
Do not remove clamps from fitting until cooling time has elapsed.
Do not remove integral cutter from the stack/saddle once the main has been drilled.
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