Primacord®
detonating cords
function
Primacord® detonating cord, when detonated, has the initiating energy of a blasting cap at all points along its entire length. The Primacord® detonating cord detonates at a speed of approximately 7000m/s. Primacord® trunklines will initiate any number of additional lengths, extensions or branch lines through correctly tied connections or knots. When used as a down line, the explosive supplier should be consulted as to the sensitivity and compatibility of cord and explosives used.
description
Primacord® detonating cord is simple in design and use. The high explosive core is encased in various protective coverings developed to withstand the many conditions encountered in the fi eld. The difference between the standard types of Primacord® detonating cord is essentially the core load coupled with a difference in the degree of protection afforded by the encasements. Various combinations of materials such as textiles and plastics cover the raw PETN (Pentaerythritol Tetranitrate) core. The textiles used provide tensile strength and
Primacord®
detonating cords
ZapcordTM 40 (40g/m)ZapcordTM 10 (10g/m)
Detacord® (15g/m)
E-cord® (5g/m)
advantages
safety All products are brightly coloured for easy identification in storage and in the field. All explosives are classified as dangerous goods and can cause personal injury if not handled correctly.
reliability Primacord® detonating cords will still initiate through knots, kinks and water. It has excellent abrasive resistance properties.
quality Primacord® detonating cords are factory manufactured to order under stringent quality control to adhere to specifications.
product information & applications
Detacord®
Detacord® detonating cord will detonate through standard knots and will initiate other detonating cords. Most cap sensitive explosives, detonating relays and cast boosters are insufficiently sensitive to be initiated by Detacord®. Confirmation of compatibility should be obtained from the manufacturer. Detacord® detonating cord is flexible, easy to handle, readily ties and holds knots. Detacord® is commonly used for surface, quarrying, construction or underground blasting applications. Detacord® can also be used as surface trunklines or lead-in-lines when used in conjunction with shock tube Primadet® accessories.
E-cord®
E-cord® is flexible and easy to handle which readily ties and holds knots. E-cord® detonating cord is commonly used as a surface trunkline, lead-in-line and down line. E-cord® detonating cord will detonate through standard knots and will initiate other detonating cords.
E-cord® is not recommended for underground use or applications.
In all applications, some cast boosters can not be reliably initiated by E-cord® detonating cord. The manufacturer of the booster should be consulted before using E-cord® detonating cord in this manner.
SB cord
TMSB cordTM is designed for secondary blasting. SB cordTM does not exhibit the tensile and abrasive resistant properties of the
other Primacord® detonating cords due to the exclusion of the outer layers of protective yarns and wax. SB cordTM is
compatible with all cap sensitive products and can be used with detonating relays. SB cordTM detonating cord will
detonate through standard knots and will initiate other detonating cords. SB cordTM is not recommended for underground use or applications.
Zapcord™
Zapcord™ detonating cord possesses all the handling and reliability advantages of the other Primacord® detonating cords. Zapcord™ is recommended to be used as trunklines and downlines in severe surface or underground blasting applications. It is most commonly used as a downline where continuity throughout the column is to be ensured.
important instructions
• Always store detonators and explosives separately.
• Keep detonating cord away from sparks, fl ames or any other source of ignition.
• Store explosives according to the country rules & regulations.
• Always knot the end of the cord, to avoid water ingress (fi gure one).
• Always keep loose ends as short as possible (fi gure two).
• All Primacord® detonating cord connections should be pulled tight so that the two lines make positive contact.
• The clove hitch is recommended for connecting downlines to trunklines or “branch lines”.
• It is also very important that all “branch line” connections are kept at right angles (fi gure three).
• Make sure that all Primacord® detonating cord lines are devoid of loops and kinks and prevent lines crossing over each other (fi gure four).
• Only a sharp knife should be used to cut cord and never use a ‘scissor-type’ cutting device.
• With underground or small applications, it is recommended to ‘ring-feed’ to avoid possible misfi res (fi gure fi ve).
• Avoid any acute angles (fi gure six).
• Initiation of the Primacord® detonating cord may be done using an Instantaneous Electric Detonator (IED) (fi gures seven & eight).
Figure one Figure two Figure three
Detacord® E-cord® SB cordTM ZapcordTM ZapcordTM 40
Core load (g/m) 3.5 5.0 8.0 10.0 40.0 Tensile strength (kg) Outside diameter (mm) Temperature range (°C)
Water resistance Yes Yes Limited Yes Yes
100 100 70 130 130
3.6 4.0 4.2 4.7 7.6
packaging information
Standard product lengths and packaging densities are available on your request. Please contact your representative.
standard packaging
Primacord® detonating cord. Figure four
Figure seven
Figure fi ve
Figure eight
Figure six
Detacord® E-cord® SB cordTM ZapcordTM ZapcordTM 40
Core load (g) 3.5 5.0 8.0 10.0 40.0
Carton dimensions (mm)
length spools ship length spools ship length spools ship length spools ship length spools ship
per /box weight per /box weight per /box weight per /box weight per /box weight
spool (kg) spool (kg) spool (kg) spool (kg) spool (kg)
(m) (m) (m) (m) (m) 500 2 13.1 300 2 9.0 250 2 8.4 250 2 11.4 50 2 6.3 150 4 8.6 150 4 9.4 150 4 10.3 100 4 9.7 100 4 6.2 100 4 6.7 100 4 7.3 50 4 5.5 80 4 5.2 50 4 4.0 80 4 6.1 50 4 3.7 50 4 4.3 295 x 295 x 385
colour codes & labelling
warning and disclaimer
All products and equipment manufactured and supplied by Sasol Dyno Nobel shall be used, handled, stored or transported according to the guidelines laid down by the relevant applicable legislation in that country. Explosive accessories should be secured in an explosive magazine. All or any part of the explosive accessories is dangerous and can cause injury or death. If you find any of these items, do not touch them.
Sasol Dyno Nobel
(A division of Sasol Chemical Industries Limited 1968/01/391/06) 15 Baker street Rosebank 2196
recommended storage, shelf life & transport
Each carton is marked with a printed sticker that identifies the product according to core load, date of manufacture, batch number and carton number.
The information enables Sasol Dyno Nobel to refer to quality records in order to investigate customer complaints.
Detacord® E-cord® SB cordTM Zapcord™ Zapcord™ 40
Yellow with one Pink with one Orange Yellow with two black Yellow with two black countering black countering yarn countering yarns black countering
yarn yarns
Primacord®
Recommended storage 3 months (dry, well ventilated)
Shelf life 24 months
Transport:
UN classification 1.1D
UN number 0065
